ืืขืจ ืฆืื ืคืื ืืขื ืคึผืจืืืขืงื ืืื ืืขืืืขื:
- ืืขืจื ืขื ืืืขืื DHCP ืืืืฃ ืึทื IPv4 ื ืขืฅ
- ืืขืจื ืขื ืคึผืืืืึธื (ืึท ืืืกื ืืขืจ ืืื ืคึฟืื ืงืจืึทืฆื ๐)
- ืกืขืจืืืขืจ ืคืึทืจืืืึทื (ืืืื ืืึธืคึผื), ืึธืจืืืื ืขื , ืืืึธืก ืืื ืฉืืื ืืขืจ ืืื ืืขืจ ืฉืืืขืจ ืฆื ืึทืกืขืืืึทื ืคึฟืึทืจ ืื ื ืืึทืข ืึทืก. ืืื ืืื ืืึธื ื ืื ืืื ืึทื ืขืก ืืื ืึท ืืืื ืขืจื ืึทื ืขืก ืืื ืงืืื ืืืขื ืฆื "ืืืืฉื ืจืขืื ืืืฆื"
- ืงืจืืื ืึท ืืจืืขืื DHCP ืกืขืจืืืขืจ ืืื ืื ืคืืืืงืืื ืฆื ืกืขืืขืงืืืจื ืืขื IP ืึทืืจืขืก ืคืื ืื ืึทืืึธื ืขื ื ื ืืฆื ืื ืืขืง ืคืื ืื ืึทืืึธื ืขื ื ืึธืืขืจ ืืึทืฉืืืืขื ืืขืง + ืคึผืึธืจื ืงืึธืืืื ืึทืฆืืข (ืึธืคึผืฆืืข 82)
- ืฉืจืืืื ืื ืื ืืขืจ ืืืืง (ืึธื! ืืึธืก ืืื ืืืื ืืึทืืืืกืืข ืืขืืืงืืื)
- ืืึทืงืืืขื ืืึทืืขืจืงืื ืืขื ืืืขืื ืืืื ืงืืื-ืืึทื ืืืื ืึทืก ืืืืฃ ืืืจืืืืจ (ืึธืืขืจ ืืขืกืขืจ ื ืึธื, ืึท ืคืึทืจืืขืืื ื) ๐
ืจืขืืืืืึทื: ืขืก ืึทืจืืขื ๐ ืืขืกืืขื ืืืืฃ FreeBSD ืืื Ubuntu OS. ืืืขืึธืจืขืืืงืึทืืื, ืื ืงืึธื ืงืขื ืขื ืืืื ืืขืืขืื ืฆื ืึทืจืืขืื ืืื ืืขืจ ืงืืื ืึทืก, ืืืืึทื ืขืก ืืืกืงืืืขื ืฆื ืืืื ืงืืื ืกืคึผืขืฆืืคืืฉ ืืืื ืืื ืื ืืื ืื ืงืึธื.
ืงืขืจืคืึทืื! ืขืก ืืื ืคืื ืืขืจ ืฆื ืงืืืขื.
ืืื ืง ืฆื ืจืืคึผืึทืืึทืืึธืจื ืคึฟืึทืจ ืึทืืึทืืฉืขืจื .
ืืขืจ ืคึผืจืึธืฆืขืก ืคืื ืื ืกืืึธืืื ื, ืงืึทื ืคืืืืขืจืื ื ืืื ื ืืฆื ืื ืจืขืืืืืึทื ืคืื "ืฉืืขืจื ืื ืืึทืื ืืืึทืจื" ืืื ืคืื ื ืืืขืจืืงืขืจ, ืืื ืืขืืึธืื ืึท ืืืกื ืืขืึธืจืืข ืืืขืื ืื DHCP ืคึผืจืึธืืึธืงืึธื. ืคึฟืึทืจ ืืื. ืืื ืคึฟืึทืจ ืืขืฉืืืืข ๐
ื ืืืกื ืืขืึธืจืืข
ืืืึธืก ืืื DHCP
ืืึธืก ืืื ืึท ื ืขืฅ ืคึผืจืึธืืึธืงืึธื ืืืึธืก ืึทืืึทืื ืึท ืืืื ืฆื ืืขืคึฟืื ืขื ืืืื IP ืึทืืจืขืก (ืืื ืื ืืขืจืข ืคึผืึทืจืึทืืขืืขืจืก ืืื ืืืืืืืื, ืื ืก, ืืื"ื ื) ืคึฟืื ืึท DHCP ืกืขืจืืืขืจ. ืคึผืึทืงืืฅ ืืขื ืขื ืคืืจืืืื ืืื ืื UDP ืคึผืจืึธืืึธืงืึธื. ืืขืจ ืืขื ืขืจืึทื ืคึผืจืื ืฆืืคึผ ืคืื ืึธืคึผืขืจืึทืฆืืข ืคืื โโืื ืืืื ืืืขื ืจืืงืืืขืกืืื ื ื ืขืฅ ืคึผืึทืจืึทืืขืืขืจืก ืืื ืืื ืืืื:
- ืืขืจ ืืืื (ืงืืืขื ื) ืกืขื ืื ืึท UDP ืืจืึธืืงืึทืกื ืืขืื (DHCPDISCOVER) ืืืืขืจ ืื ื ืขืฅ ืืื ืื ืืขืื "ื ื, ืขืืขืฆืขืจ ืืขืื ืืืจ ืึทื IP ืึทืืจืขืก." ืืขืจืฆื, ืืืืฉืึทืืืึทืื (ืึธืืขืจ ื ืื ืฉืืขื ืืืง) ืื ืืขืื ืึทืงืขืจื ืคึฟืื ืคึผืึธืจื 68 (ืืงืืจ), ืืื ืื ืืขืกืืื ืืืฉืึทื ืืื ืคึผืึธืจื 67 (ืืขืกืืื ืืืฉืึทื). ืขืืืขืืข ืืขืืืืกืขืก ืืืื ืฉืืงื ืคึผืึทืงืืฅ ืคึฟืื ืคึผืึธืจื 67. ืื MAC ืึทืืจืขืก ืคืื ืืขื ืงืืืขื ื ืืืื ืืื ืึทืจืืึทื ืืขืจืขืื ื ืืื ืื DHCPDISCOVER ืคึผืขืงื.
- ืื DHCP ืกืขืจืืืขืจืก ืืืื ืืืืฃ ืื ื ืขืฅ (ืืื ืขืก ืงืขื ืืืื ืขืืืขืืข ืคืื โโืืื) ืคืึธืจืขื ืึท DHCPOFFER ืคืึธืจืฉืืึธื ืืื ื ืขืฅ ืกืขืืืื ืืก ืคึฟืึทืจ ืื ืืืื ืืืึธืก ืืขืฉืืงื DHCPDISCOVER ืืื ืืืื ืืจืึธืืงืึทืกื ืขืก ืืืืขืจ ืื ื ืขืฅ. ืืขืืืืืืึทืฆืืข ืคืื โโืืืึธืก ืืึธืก ืคึผืึทืงืึทื ืืื ืืืขื ืคึฟืึทืจ ืืื ืืืืืจื ืืืืฃ ืื MAC ืึทืืจืขืก ืคืื ืืขื ืงืืืขื ื ืฆืืืขืฉืืขืื ืคืจืืขืจ ืืื ืื DHCPDISCOVER ืืขืื.
- ืืขืจ ืงืืืขื ื ืึทืงืกืขืคึผืฅ ืคึผืึทืงืืฅ ืืื ืคึผืจืึทืคึผืึธืืืึทืื ืคึฟืึทืจ ื ืขืฅ ืกืขืืืื ืืก, ืกืึทืืขืงืฅ ืื ืืขืจืกื ืึทืืจืึทืงืืืื ืืืื ืขืจ (ืื ืงืจืืืืืจืืึท ืงืขื ืืืื ืึทื ืืขืจืฉ, ืืืฉื, ืื ืฆืืื ืคืื ืคึผืึทืงืึทื ืขืงืกืคึผืจืขืก, ืื ื ืืืขืจ ืคืื ืื ืืขืจืืืืืื ืจืืฅ) ืืื ืืืื ืึท "ืืึทืึทืืืขืจ ืืขืื" DHCPREQUEST ืืื ืื ื ืขืฅ ืกืขืืืื ืืก ืคืื ืื DHCP ืกืขืจืืืขืจ ืขืก ืืืืงืก. ืืื ืืขื ืคืึทื, ืื ืคึผืึทืงืึทื ืืืื ืฆื ืึท ืกืคึผืขืฆืืคืืฉ DHCP ืกืขืจืืืขืจ.
- ืืขืจ ืกืขืจืืืขืจ ืืืึธืก ืืืงืืืขื ืื DHCPREQUEST ืกืขื ืื ืึท DHCPACK ืคึฟืึธืจืืึทื ืคึผืึทืงืึทื, ืืื ืืืึธืก ืขืก ืึทืืึธื ืืืืืขืจ ืจืฉืืืืช ืื ื ืขืฅ ืกืขืืืื ืืก ืืืขื ืคึฟืึทืจ ืืขื ืงืืืขื ื
ืืื ืึทืืืฉืึทื, ืขืก ืืขื ืขื DHCPINFORM ืคึผืึทืงืืฅ ืืืึธืก ืงืืืขื ืคืื ืืขื ืงืืืขื ื, ืืื ืืขืจ ืฆืื ืคืื ืืืึธืก ืืื ืฆื ืืืืืืืื ืื DHCP ืกืขืจืืืขืจ ืึทื ืืขืจ "ืงืืืขื ื ืืื ืืขืืขืืืง" ืืื ืืื ื ืืฆื ืื ืืจืืืก ื ืขืฅ ืกืขืืืื ืืก. ืืื ืื ืืืคึผืืึทืืขื ืืืืฉืึทื ืคืื ืืขื ืกืขืจืืืขืจ, ืื ืคึผืึทืงืืฅ ืืขื ืขื ืืืื ืึธืจืืจื.
ืคึผืขืงื ืคึฟืึธืจืืึทื
ืืื ืึทืืืขืืืื, ืึท ืขืืืขืจื ืขื ืคึผืึทืงืึทื ืจืึทื ืงืืงื ืขืคึผืขืก ืืื ืืึธืก:
ืืื ืืื ืืืขืจ ืคืึทื, ืืืจ ืืืขืื ืืึทืืจืึทืืื ืืืืื ืื ืืึทืื ืืืืึทื ืคึฟืื ืื ืืื ืืึทืื ืคืื ืื UDP ืคึผืึทืงืึทื, ืึธื OSI ืฉืืืืข ืคึผืจืึธืืึธืงืึธื ืืขืืขืจื, ื ืืืืื ืื DHCP ืกืืจืืงืืืจ:
ืืืงืคึผืืืกืงืึธืืืขืจ
ืืขืจ ืคึผืจืึธืฆืขืก ืคืื ืงืจืืื ืึทื IP ืึทืืจืขืก ืคึฟืึทืจ ืึท ืืืื ืืืืื ืืื ืึธื ืืื ืื DHCP ืงืืืขื ื ืฉืืงื ืึท ืืจืึธืืงืึทืกื ืืขืื ืคึฟืื ืคึผืึธืจื 68 ืฆื 255.255.255.255:67. ืืื ืืขื ืคึผืขืงื, ืืขืจ ืงืืืขื ื ืืืื ืืืื MAC ืึทืืจืขืก, ืืื ืืืึธืก ืคึผืื ืงื ืขืก ืืืื ืฆื ืืึทืงืืืขื ืคึฟืื ืื DHCP ืกืขืจืืืขืจ. ืื ืคึผืขืงื ืกืืจืืงืืืจ ืืื ืืืกืงืจืืืื ืืื ืื ืืืฉ ืืื ืื.
DHCPDISCOVER ืคึผืึทืงืึทื ืกืืจืืงืืืจ ืืืฉ
ืึธืจื ืืื ืืขื ืคึผืขืงื
ืืืขืจื ื ืึธืืขื
ืืืึทืฉืคึผืื
ืืงืืื
ืืืืข
ืงืืขืจืึทืคืึทืงืืืฉืึทื
1
ืฉืืืืื ืืขืื
1
ืืขืงืก
1
ืึธื ืืึธื ืืืคึผ. 1 - ืืขืื ืคืื ืงืืืขื ื ืฆื ืกืขืจืืืขืจ, 2 - ืขื ืืคืขืจ ืคืื ืกืขืจืืืขืจ ืฆื ืงืืืขื ื
2
ืืึทืจืืืืึทืจืข ืืืคึผ
1
ืืขืงืก
1
ืืืคึผ ืคืื ืืึทืื ืืืึทืจื ืึทืืจืขืก, ืืื ืืขื ืคึผืจืึธืืึธืงืึธื 1 - MAC
3
ืืึทืจืืืืึทืจืข ืืืขื ืื ืืขื ื
6
ืืขืงืก
1
ืื ืืขื ื ืคืื ืื MAC ืึทืืจืขืก ืคืื ืื ืืืื
4
ืืึธืคึผืก
1
ืืขืงืก
1
ื ืืืขืจ ืคืื ืื ืืขืจืืืืืื ืจืืฅ
5
ืืจืึทื ืกืึทืงืืืึธื ืฉืืึทื
23:cf:de:1ื
ืืขืงืก
4
ืืื ืฆืืง ืืจืึทื ืกืึทืงืืืึธื ืืืขื ืืืคืืขืจ. ืืืฉืขื ืขืจืืืืึทื ืืืจื ืืขืจ ืงืืืขื ื ืืื ืื ืึธื ืืืื ืคืื ืึท ืืงืฉื ืึธืคึผืขืจืึทืฆืืข
7
ืฆืฐืฒืืข ืจ ืื ื ืืืจืืืขืืื ืืขื
0
ืืขืงืก
4
ืฆืืื ืืื ืกืขืงืื ืืขืก ืคืื ืื ืึธื ืืืื ืคืื ืืขื ืคึผืจืึธืฆืขืก ืคืื ืืึทืงืืืขื ืึทื ืึทืืจืขืก
9
ืฉืืืืื ืคืืึทืืก
0
ืืขืงืก
2
ืืืืขืจ ืคืืึทืืก ืืืึธืก ืงืขื ืขื ืืืื ืืึทืฉืืืื ืฆื ืึธื ืืืืึทืื ืคึผืจืึธืืึธืงืึธื ืคึผืึทืจืึทืืขืืขืจืก
11
ืงืืืขื ื IP ืึทืืจืขืก
0.0.0.0
ืคึผืึทืก
4
ืงืืืขื ื IP ืึทืืจืขืก (ืืืื ืงืืื)
15
ืืืื ืงืืืขื ื IP ืึทืืจืขืก
0.0.0.0
ืคึผืึทืก
4
IP ืึทืืจืขืก ืืขืคึฟืื ื ืืืจื ืื ืกืขืจืืืขืจ (ืืืื ืื ืืืฆื)
19
ืืืืึทืืขืจ ืกืขืจืืืขืจ IP ืึทืืจืขืก
0.0.0.0
ืคึผืึทืก
4
ืกืขืจืืืืจืขืจ IP ืึทืืจืขืก (ืืืื ืืืงืื ื)
23
ืจืืืื ืึทืืขื ื IP ืึทืืจืขืก
172.16.114.41
ืคึผืึทืก
4
IP ืึทืืจืขืก ืคืื ืื ืจืขืืข ืึทืืขื ื (ืืืฉื, ืึท ืืึทืฉืืืืขื)
27
ืงืืืขื ื MAC ืึทืืจืขืก
14:d6:4d:a7:c9:55
ืืขืงืก
6
MAC ืึทืืจืขืก ืคืื ืื ืคึผืึทืงืึทื ืกืขื ืืขืจ (ืงืืืขื ื)
31
ืงืืืขื ื ืืึทืื ืืืึทืจื ืึทืืจืขืก ืืืึทืื
ืืขืงืก
10
ืจืขืืขืจืืืืจื ืึทืืืขืงืืขืฆื. ืืืืฉืึทืืืึทืื ืึธื ืืขืคืืื ืืื ืืขืจืึธืก
41
ืกืขืจืืืืจืขืจ ืืึทืืขืืึธืก ื ืึธืืขื
ืคึผืึทืก
64
DHCP ืกืขืจืืืขืจ ื ืึธืืขื. ืืืืฉืึทืืืึทืื ื ืื ืืจืึทื ืกืืืืืขื
105
ืฉืืืืื ืืขืงืข ื ืึธืืขื
ืคึผืึทืก
128
ืืขืงืข ื ืึธืืขื ืืืืฃ ืื ืกืขืจืืืขืจ ืืขื ืืฆื ืืืจื ืืืกืงืืขืกืก ืกืืืืฉืึทื ื ืืืขื ืืืืื ื
235
ืืึทืืืง ืงืืืืขื
ืงืกื ืืืงืก: ืงืกื ืืืงืก: ืงืกื ืืืงืก: ืงืกื ืืืงืก
ืืขืงืก
4
"ืืึทืืืฉ" ื ืืืขืจ, ืืืื ืืืึธืก, ืื ืงื. ืืืจ ืงืขื ืขื ืืึทืฉืืืืขื ืึทื ืืขื ืคึผืึทืงืึทื ืืขืืขืจื ืฆื ืื DHCP ืคึผืจืึธืืึธืงืึธื
DHCP ืึธืคึผืฆืืขืก. ืงืขื ืขื ืืืื ืืื ืงืืื ืกืืจ
236
ืึธืคึผืฆืืข ื ืืืขืจ
53
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข 53, ืืืึธืก ืกืคึผืขืฆืืคืืฆืืจื ืื DHCP ืคึผืึทืงืึทื ืืืคึผ
1 - DHCP ืืืกืงืึธืืืขืจ
3 - DHCPREQUEST
2 - DHCPOFFER
5 - DHCPACK
8 - DHCPINFORM
ืึธืคึผืฆืืข ืืขื ื
1
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
1
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ื ืืืขืจ
50
ืืขืฆืขืืืขืจ
1
ืืืึธืก IP ืึทืืจืขืก ืืื ืืขืจ ืงืืืขื ื ืืืืื ืฆื ืืึทืงืืืขื?
ืึธืคึผืฆืืข ืืขื ื
4
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
172.16.134.61
ืคึผืึทืก
4
ืึธืคึผืฆืืข ื ืืืขืจ
55
1
ื ืขืฅ ืคึผืึทืจืึทืืขืืขืจืก ืืขืืขืื ืืืจื ืืขืจ ืงืืืขื ื. ืื ืืึทืฅ ืงืขื ืืืื ืึทื ืืขืจืฉ
01 - ื ืขืฅ ืืึทืกืงืข
03 - ืืืืืืืื
06 - ืื ืก
oc โ ืืึธืกืื ืึทืืข
0f - ื ืขืฅ ืคืขืื ื ืึธืืขื
1c - ืึทืืจืขืก ืคืื ืืจืึธืืงืึทืกื ืืขืื (ืืจืึธืืงืึทืกื)
42 - ืืคืืคึผ ืกืขืจืืืขืจ ื ืึธืืขื
79 - ืงืืึทืกืืึทืก ืกืืึทืืืง ืจืื
ืึธืคึผืฆืืข ืืขื ื
8
1
ืึธืคึผืฆืืข ืืืขืจื
01:03:06:0c:0f:1c:42:79
8
ืึธืคึผืฆืืข ื ืืืขืจ
82
ืืขืฆืขืืืขืจ
ืึธืคึผืฆืืข 82, ืืืึธืก ืืจืึทื ืกืืืื ืื MAC ืึทืืจืขืก ืคืื ืื ืจืขืคึผืขืึทืืขืจ ืืืื ืืื ืขืืืขืืข ื ืึธื ืืืึทืืืขืก.
ืจืืึฟ ืึธืคื, ืืึธืก ืืื ืื ืคึผืึธืจื ืคืื ืื ืืึทืฉืืืืขื ืืืืฃ ืืืึธืก ืืขืจ ืกืืฃ DHCP ืงืืืขื ื ืืืืคื. ืืขืจ ืึธืคึผืฆืืข ืึผืืื ื ืึธื ืคึผืึทืจืึทืืขืืขืจืก. ืืขืจ ืขืจืฉืืขืจ ืืืื ืืื ืื ื ืืืขืจ ืคืื ืื "ืกืืืึธืคึผืืืึธื", ืื ืจืืข ืืื ืืืึทื ืืขื ื, ืืขืืึธืื ืืืึทื ืืืขืจื.
ืืื ืืขื ืคืึทื, ืืื ืึธืคึผืฆืืข 82, ืื ืกืึทื-ืึธืคึผืฆืืขืก ืืขื ืขื ื ืขืกืืขื:
Agent Circuit ID = 00:04:00:01:00:04, ืืื ืื ืืขืฆืืข ืฆืืืื ืืืืขืก ืืขื ืขื ืื DHCP ืงืืืขื ื ืคึผืึธืจื ืคืื ืืืึธืก ืื ืืขืื ืืขืงืืืขื
ืึทืืขื ื ืจืืืึธืื ืฉืืึทื = 00:06:c8:be:19:93:11:48 - MAC ืึทืืจืขืก ืคืื ืื DHCP ืจืขืคึผืขืึทืืขืจ ืืืื
ืึธืคึผืฆืืข ืืขื ื
18
ืืขืฆืขืืืขืจ
ืึธืคึผืฆืืข ืืืขืจื
01:06
00:04:00:01:00:04
02:08
00:06:c8:be:19:93:11:48
ืืขืงืก
ืกืืฃ ืคืื ืคึผืขืงื
255
ืืขืฆืขืืืขืจ
1
255 ืกืืืืึทืืืืืึทื ืื ืกืืฃ ืคืื ืื ืคึผืึทืงืึทื
DHCPOFFER
ืืื ืืึทืื ืืื ืืขืจ ืกืขืจืืืขืจ ืืืงืืื ืื DHCPDISCOVER ืคึผืึทืงืึทื ืืื ืืืื ืขืก ืืขื ืึทื ืขืก ืงืขื ืคืึธืจืฉืืึธืื ืืขื ืงืืืขื ื ืขืคึผืขืก ืคืื ืื ืืขืืขืื ืืืื ืขืจ, ืขืก ืืืฉืขื ืขืจืืืฅ ืึท ืขื ืืคืขืจ ืคึฟืึทืจ ืืื - DHCPDISCOVER. ืืขืจ ืขื ืืคืขืจ ืืื ืืขืฉืืงื ืฆื ืื ืคึผืึธืจื "ืคืื ืืื ืขืก ืืขืงืืืขื", ืืืจื ืืจืึธืืงืึทืกื, ืืืืึทื ืืื ืืขื ืืึธืืขื ื, ืืขืจ ืงืืืขื ื ืืื ื ืึธื ื ืืฉื ืึทื IP ืึทืืจืขืก, ืืขืจืืืขืจ ืขืก ืงืขื ื ืึธืจ ืึธื ื ืขืืขื ืืขื ืคึผืึทืงืึทื ืืืื ืขืก ืืื ืืขืฉืืงื ืืืจื ืืจืึธืืงืึทืกื. ืืขืจ ืงืืืขื ื ืื ืขืจืงืขื ื ืึทื ืืึธืก ืืื ืึท ืคึผืขืงื ืคึฟืึทืจ ืืื ืืืจื ืืืื MAC ืึทืืจืขืก ืืื ืืขื ืคึผืขืงื, ืืื ืืขืืื ื ืืื ืื ืืจืึทื ืกืึทืงืืืึธื ื ืืืขืจ ืืืึธืก ืขืจ ืืืฉืขื ืขืจืืืฅ ืืื ืืขืจ ืฆืืื ืืืขื ืืขืจ ืขืจืฉืืขืจ ืคึผืขืงื ืืื ืืืฉืืคื.
DHCPOFFER ืคึผืึทืงืึทื ืกืืจืืงืืืจ ืืืฉ
ืึธืจื ืืื ืืขื ืคึผืขืงื
ื ืึธืืขื ืคืื ืืืขืจื (ืคึผืจืึธืกื)
ืืืึทืฉืคึผืื
ืืงืืื
ืืืืข
ืงืืขืจืึทืคืึทืงืืืฉืึทื
1
ืฉืืืืื ืืขืื
1
ืืขืงืก
1
ืึธื ืืึธื ืืืคึผ. 1 - ืืขืื ืคืื ืงืืืขื ื ืฆื ืกืขืจืืืขืจ, 2 - ืขื ืืคืขืจ ืคืื ืกืขืจืืืขืจ ืฆื ืงืืืขื ื
2
ืืึทืจืืืืึทืจืข ืืืคึผ
1
ืืขืงืก
1
ืืืคึผ ืคืื ืืึทืื ืืืึทืจื ืึทืืจืขืก, ืืื ืืขื ืคึผืจืึธืืึธืงืึธื 1 - MAC
3
ืืึทืจืืืืึทืจืข ืืืขื ืื ืืขื ื
6
ืืขืงืก
1
ืื ืืขื ื ืคืื ืื MAC ืึทืืจืขืก ืคืื ืื ืืืื
4
ืืึธืคึผืก
1
ืืขืงืก
1
ื ืืืขืจ ืคืื ืื ืืขืจืืืืืื ืจืืฅ
5
ืืจืึทื ืกืึทืงืืืึธื ืฉืืึทื
23:cf:de:1ื
ืืขืงืก
4
ืืื ืฆืืง ืืจืึทื ืกืึทืงืืืึธื ืืืขื ืืืคืืขืจ. ืืืฉืขื ืขืจืืืืึทื ืืืจื ืืขืจ ืงืืืขื ื ืืื ืื ืึธื ืืืื ืคืื ืึท ืืงืฉื ืึธืคึผืขืจืึทืฆืืข
7
ืฆืฐืฒืืข ืจ ืื ื ืืืจืืืขืืื ืืขื
0
ืืขืงืก
4
ืฆืืื ืืื ืกืขืงืื ืืขืก ืคืื ืื ืึธื ืืืื ืคืื ืืขื ืคึผืจืึธืฆืขืก ืคืื ืืึทืงืืืขื ืึทื ืึทืืจืขืก
9
ืฉืืืืื ืคืืึทืืก
0
ืืขืงืก
2
ืืืืขืจ ืคืืึทืืก ืืืึธืก ืงืขื ืขื ืืืื ืืึทืฉืืืื ืฆื ืึธื ืืืืึทืื ืคึผืจืึธืืึธืงืึธื ืคึผืึทืจืึทืืขืืขืจืก. ืืื ืืขื ืคืึทื, 0 ืืืื ืื Unicast ืืขืื ืืืคึผ
11
ืงืืืขื ื IP ืึทืืจืขืก
0.0.0.0
ืคึผืึทืก
4
ืงืืืขื ื IP ืึทืืจืขืก (ืืืื ืงืืื)
15
ืืืื ืงืืืขื ื IP ืึทืืจืขืก
172.16.134.61
ืคึผืึทืก
4
IP ืึทืืจืขืก ืืขืคึฟืื ื ืืืจื ืื ืกืขืจืืืขืจ (ืืืื ืื ืืืฆื)
19
ืืืืึทืืขืจ ืกืขืจืืืขืจ IP ืึทืืจืขืก
0.0.0.0
ืคึผืึทืก
4
ืกืขืจืืืืจืขืจ IP ืึทืืจืขืก (ืืืื ืืืงืื ื)
23
ืจืืืื ืึทืืขื ื IP ืึทืืจืขืก
172.16.114.41
ืคึผืึทืก
4
IP ืึทืืจืขืก ืคืื ืื ืจืขืืข ืึทืืขื ื (ืืืฉื, ืึท ืืึทืฉืืืืขื)
27
ืงืืืขื ื MAC ืึทืืจืขืก
14:d6:4d:a7:c9:55
ืืขืงืก
6
MAC ืึทืืจืขืก ืคืื ืื ืคึผืึทืงืึทื ืกืขื ืืขืจ (ืงืืืขื ื)
31
ืงืืืขื ื ืืึทืื ืืืึทืจื ืึทืืจืขืก ืืืึทืื
ืืขืงืก
10
ืจืขืืขืจืืืืจื ืึทืืืขืงืืขืฆื. ืืืืฉืึทืืืึทืื ืึธื ืืขืคืืื ืืื ืืขืจืึธืก
41
ืกืขืจืืืืจืขืจ ืืึทืืขืืึธืก ื ืึธืืขื
ืคึผืึทืก
64
DHCP ืกืขืจืืืขืจ ื ืึธืืขื. ืืืืฉืึทืืืึทืื ื ืื ืืจืึทื ืกืืืืืขื
105
ืฉืืืืื ืืขืงืข ื ืึธืืขื
ืคึผืึทืก
128
ืืขืงืข ื ืึธืืขื ืืืืฃ ืื ืกืขืจืืืขืจ ืืขื ืืฆื ืืืจื ืืืกืงืืขืกืก ืกืืืืฉืึทื ื ืืืขื ืืืืื ื
235
ืืึทืืืง ืงืืืืขื
ืงืกื ืืืงืก: ืงืกื ืืืงืก: ืงืกื ืืืงืก: ืงืกื ืืืงืก
ืืขืงืก
4
"ืืึทืืืฉ" ื ืืืขืจ, ืืืื ืืืึธืก, ืื ืงื. ืืืจ ืงืขื ืขื ืืึทืฉืืืืขื ืึทื ืืขื ืคึผืึทืงืึทื ืืขืืขืจื ืฆื ืื DHCP ืคึผืจืึธืืึธืงืึธื
DHCP ืึธืคึผืฆืืขืก. ืงืขื ืขื ืืืื ืืื ืงืืื ืกืืจ
236
ืึธืคึผืฆืืข ื ืืืขืจ
53
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข 53, ืืืึธืก ืืืคืืื ื ืื DHCP 2 ืคึผืึทืงืึทื ืืืคึผ - DHCPOFFER
ืึธืคึผืฆืืข ืืขื ื
1
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
2
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ื ืืืขืจ
1
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืฆื ืคืึธืจืฉืืึธืื ืื DHCP ืงืืืขื ื ืึท ื ืขืฅ ืืึทืกืงืข
ืึธืคึผืฆืืข ืืขื ื
4
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
255.255.224.0
ืคึผืึทืก
4
ืึธืคึผืฆืืข ื ืืืขืจ
3
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืฆื ืคืึธืจืฉืืึธืื ืื DHCP ืงืืืขื ื ืึท ืคืขืืืงืืึทื ืืืืืืืื
ืึธืคึผืฆืืข ืืขื ื
4
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
172.16.12.1
ืคึผืึทืก
4
ืึธืคึผืฆืืข ื ืืืขืจ
6
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืฆื ืคืึธืจืฉืืึธืื DHCP ืฆื ืื ืก ืงืืืขื ื
ืึธืคึผืฆืืข ืืขื ื
4
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
8.8.8.8
ืคึผืึทืก
4
ืึธืคึผืฆืืข ื ืืืขืจ
51
ืืขืฆืขืืืขืจ
1
ืื ืืขืื ืคืื ืื ืืจืืืก ื ืขืฅ ืคึผืึทืจืึทืืขืืขืจืก ืืื ืกืขืงืื ืืขืก, ื ืึธื ืืืึธืก ืืขืจ DHCP ืงืืืขื ื ืืืื ืืขืื ืืื ืืืืืขืจ
ืึธืคึผืฆืืข ืืขื ื
4
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
86400
ืืขืฆืขืืืขืจ
4
ืึธืคึผืฆืืข ื ืืืขืจ
82
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข 82, ืจืืคึผืืฅ ืืืึธืก ืืขืงืืืขื ืืื DHCPDISCOVER
ืึธืคึผืฆืืข ืืขื ื
18
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
01:08:00:06:00
01:01:00:00:01
02:06:00:03:0f
26:4ื:ืขืง
ืืขืฆืขืืืขืจ
18
ืกืืฃ ืคืื ืคึผืขืงื
255
ืืขืฆืขืืืขืจ
1
255 ืกืืืืึทืืืืืึทื ืื ืกืืฃ ืคืื ืื ืคึผืึทืงืึทื
DHCPREQUEST
ื ืึธื ืืขืจ ืงืืืขื ื ืืืงืืื DHCPOFFER, ืขืจ ืคืืจืืขื ืึท ืคึผืึทืงืึทื ืจืืงืืืขืกืืื ื ื ืขืฅ ืคึผืึทืจืึทืืขืืขืจืก ื ืื ืฆื ืึทืืข DHCP ืกืขืจืืืขืจืก ืืืืฃ ืื ื ืขืฅ, ืึธืืขืจ ืืืืื ืฆื ืืืื ืกืคึผืขืฆืืคืืฉ ืืืื ืขืจ, ืืืขืืขื ืก DHCPOFFER ืคืึธืจืฉืืึธื ืขืจ "ืืืืงื" ืื ืืขืจืกื. ืื "ืืื" ืงืจืืืืืจืืึท ืงืขื ืขื ืืืื ืึทื ืืขืจืฉ ืืื ืึธืคืขื ืืขื ืืืืฃ ืื DHCP ืืืคึผืืึทืืขื ืืืืฉืึทื ืคืื ืืขื ืงืืืขื ื. ืืขืจ ืืึทืงืืืขืจ ืคืื ืื ืืขืื ืืื ืกืคึผืขืกืืคืืขื ืืื ืื MAC ืึทืืจืขืก ืคืื ืื DHCP ืกืขืจืืืขืจ. ืืืื, ืึท DHCPREQUEST ืคึผืึทืงืึทื ืงืขื ืขื ืืืื ืืขืฉืืงื ืืืจื ืืขื ืงืืืขื ื ืึธื ืขืจืฉืืขืจ ืืืฉืขื ืขืจืืืืื ื DHCPDISCOVER, ืืืื ืื IP ืึทืืจืขืก ืคืื ืื ืกืขืจืืืขืจ ืืื ืฉืืื ืืืงืืืขื ืคืจืืขืจ.
DHCPREQUEST ืคึผืึทืงืึทื ืกืืจืืงืืืจ ืืืฉ
ืึธืจื ืืื ืืขื ืคึผืขืงื
ื ืึธืืขื ืคืื ืืืขืจื (ืคึผืจืึธืกื)
ืืืึทืฉืคึผืื
ืืงืืื
ืืืืข
ืงืืขืจืึทืคืึทืงืืืฉืึทื
1
ืฉืืืืื ืืขืื
1
ืืขืงืก
1
ืึธื ืืึธื ืืืคึผ. 1 - ืืขืื ืคืื ืงืืืขื ื ืฆื ืกืขืจืืืขืจ, 2 - ืขื ืืคืขืจ ืคืื ืกืขืจืืืขืจ ืฆื ืงืืืขื ื
2
ืืึทืจืืืืึทืจืข ืืืคึผ
1
ืืขืงืก
1
ืืืคึผ ืคืื ืืึทืื ืืืึทืจื ืึทืืจืขืก, ืืื ืืขื ืคึผืจืึธืืึธืงืึธื 1 - MAC
3
ืืึทืจืืืืึทืจืข ืืืขื ืื ืืขื ื
6
ืืขืงืก
1
ืื ืืขื ื ืคืื ืื MAC ืึทืืจืขืก ืคืื ืื ืืืื
4
ืืึธืคึผืก
1
ืืขืงืก
1
ื ืืืขืจ ืคืื ืื ืืขืจืืืืืื ืจืืฅ
5
ืืจืึทื ืกืึทืงืืืึธื ืฉืืึทื
23:cf:de:1ื
ืืขืงืก
4
ืืื ืฆืืง ืืจืึทื ืกืึทืงืืืึธื ืืืขื ืืืคืืขืจ. ืืืฉืขื ืขืจืืืืึทื ืืืจื ืืขืจ ืงืืืขื ื ืืื ืื ืึธื ืืืื ืคืื ืึท ืืงืฉื ืึธืคึผืขืจืึทืฆืืข
7
ืฆืฐืฒืืข ืจ ืื ื ืืืจืืืขืืื ืืขื
0
ืืขืงืก
4
ืฆืืื ืืื ืกืขืงืื ืืขืก ืคืื ืื ืึธื ืืืื ืคืื ืืขื ืคึผืจืึธืฆืขืก ืคืื ืืึทืงืืืขื ืึทื ืึทืืจืขืก
9
ืฉืืืืื ืคืืึทืืก
8000
ืืขืงืก
2
ืืืืขืจ ืคืืึทืืก ืืืึธืก ืงืขื ืขื ืืืื ืืึทืฉืืืื ืฆื ืึธื ืืืืึทืื ืคึผืจืึธืืึธืงืึธื ืคึผืึทืจืึทืืขืืขืจืก. ืืื ืืขื ืคืึทื, "ืืจืึธืืงืึทืกื" ืืื ืืึทืฉืืืื
11
ืงืืืขื ื IP ืึทืืจืขืก
0.0.0.0
ืคึผืึทืก
4
ืงืืืขื ื IP ืึทืืจืขืก (ืืืื ืงืืื)
15
ืืืื ืงืืืขื ื IP ืึทืืจืขืก
172.16.134.61
ืคึผืึทืก
4
IP ืึทืืจืขืก ืืขืคึฟืื ื ืืืจื ืื ืกืขืจืืืขืจ (ืืืื ืื ืืืฆื)
19
ืืืืึทืืขืจ ืกืขืจืืืขืจ IP ืึทืืจืขืก
0.0.0.0
ืคึผืึทืก
4
ืกืขืจืืืืจืขืจ IP ืึทืืจืขืก (ืืืื ืืืงืื ื)
23
ืจืืืื ืึทืืขื ื IP ืึทืืจืขืก
172.16.114.41
ืคึผืึทืก
4
IP ืึทืืจืขืก ืคืื ืื ืจืขืืข ืึทืืขื ื (ืืืฉื, ืึท ืืึทืฉืืืืขื)
27
ืงืืืขื ื MAC ืึทืืจืขืก
14:d6:4d:a7:c9:55
ืืขืงืก
6
MAC ืึทืืจืขืก ืคืื ืื ืคึผืึทืงืึทื ืกืขื ืืขืจ (ืงืืืขื ื)
31
ืงืืืขื ื ืืึทืื ืืืึทืจื ืึทืืจืขืก ืืืึทืื
ืืขืงืก
10
ืจืขืืขืจืืืืจื ืึทืืืขืงืืขืฆื. ืืืืฉืึทืืืึทืื ืึธื ืืขืคืืื ืืื ืืขืจืึธืก
41
ืกืขืจืืืืจืขืจ ืืึทืืขืืึธืก ื ืึธืืขื
ืคึผืึทืก
64
DHCP ืกืขืจืืืขืจ ื ืึธืืขื. ืืืืฉืึทืืืึทืื ื ืื ืืจืึทื ืกืืืืืขื
105
ืฉืืืืื ืืขืงืข ื ืึธืืขื
ืคึผืึทืก
128
ืืขืงืข ื ืึธืืขื ืืืืฃ ืื ืกืขืจืืืขืจ ืืขื ืืฆื ืืืจื ืืืกืงืืขืกืก ืกืืืืฉืึทื ื ืืืขื ืืืืื ื
235
ืืึทืืืง ืงืืืืขื
ืงืกื ืืืงืก: ืงืกื ืืืงืก: ืงืกื ืืืงืก: ืงืกื ืืืงืก
ืืขืงืก
4
"ืืึทืืืฉ" ื ืืืขืจ, ืืืื ืืืึธืก, ืื ืงื. ืืืจ ืงืขื ืขื ืืึทืฉืืืืขื ืึทื ืืขื ืคึผืึทืงืึทื ืืขืืขืจื ืฆื ืื DHCP ืคึผืจืึธืืึธืงืึธื
DHCP ืึธืคึผืฆืืขืก. ืงืขื ืขื ืืืื ืืื ืงืืื ืกืืจ
236
ืึธืคึผืฆืืข ื ืืืขืจ
53
ืืขืฆืขืืืขืจ
3
ืึธืคึผืฆืืข 53, ืืืึธืก ืืืคืืื ื ืื DHCP ืคึผืึทืงืึทื ืืืคึผ 3 - DHCPREQUEST
ืึธืคึผืฆืืข ืืขื ื
1
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
3
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ื ืืืขืจ
61
ืืขืฆืขืืืขืจ
1
ืงืืืขื ื ืฉืืึทื: 01 (ืคึฟืึทืจ Ehernet) + ืงืืืขื ื MAC ืึทืืจืขืก
ืึธืคึผืฆืืข ืืขื ื
7
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
01:2c:ab:25:ff:72:a6
ืืขืงืก
7
ืึธืคึผืฆืืข ื ืืืขืจ
60
ืืขืฆืขืืืขืจ
"ืคืึทืจืงืืืคืขืจ ืงืืึทืก ืืืขื ืืืคืืขืจ". ืืื ืืืื ืคืึทื, ืขืก ืจืืคึผืึธืจืฅ ืื DHCP ืงืืืขื ื ืืืขืจืกืืข. ืืึธืืขืจ ืื ืืขืจืข ืืขืืืืกืขืก ืฆืืจืืงืงืืืขื ืขืคึผืขืก ืึทื ืืขืจืฉ. Windows ืคึฟืึทืจ ืืืึทืฉืคึผืื ืจืืคึผืึธืจืฅ MSFT 5.0
ืึธืคึผืฆืืข ืืขื ื
11
ืืขืฆืขืืืขืจ
ืึธืคึผืฆืืข ืืืขืจื
ืืืงืคึผ 0.9.8
ืคึผืึทืก
ืึธืคึผืฆืืข ื ืืืขืจ
55
1
ื ืขืฅ ืคึผืึทืจืึทืืขืืขืจืก ืืขืืขืื ืืืจื ืืขืจ ืงืืืขื ื. ืื ืืึทืฅ ืงืขื ืืืื ืึทื ืืขืจืฉ
01 - ื ืขืฅ ืืึทืกืงืข
03 - ืืืืืืืื
06 - ืื ืก
oc โ ืืึธืกืื ืึทืืข
0f - ื ืขืฅ ืคืขืื ื ืึธืืขื
1c - ืึทืืจืขืก ืคืื ืืจืึธืืงืึทืกื ืืขืื (ืืจืึธืืงืึทืกื)
42 - ืืคืืคึผ ืกืขืจืืืขืจ ื ืึธืืขื
79 - ืงืืึทืกืืึทืก ืกืืึทืืืง ืจืื
ืึธืคึผืฆืืข ืืขื ื
8
1
ืึธืคึผืฆืืข ืืืขืจื
01:03:06:0c:0f:1c:42:79
8
ืึธืคึผืฆืืข ื ืืืขืจ
82
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข 82, ืจืืคึผืืฅ ืืืึธืก ืืขืงืืืขื ืืื DHCPDISCOVER
ืึธืคึผืฆืืข ืืขื ื
18
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
01:08:00:06:00
01:01:00:00:01
02:06:00:03:0f
26:4ื:ืขืง
ืืขืฆืขืืืขืจ
18
ืกืืฃ ืคืื ืคึผืขืงื
255
ืืขืฆืขืืืขืจ
1
255 ืกืืืืึทืืืืืึทื ืื ืกืืฃ ืคืื ืื ืคึผืึทืงืึทื
ืืืงืคึผืึทืงืง
ืืื ืืึทืฉืืขืืืงืื ื ืึทื "ืืึธ, ืึทื ืก ืจืขืื, ืืึธืก ืืื ืืืื IP ืึทืืจืขืก, ืืื ืืื ืืืขื ื ืืฉื ืืขืื ืขืก ืฆื ืืืขืจ ืขืก ืื ืึทื ืืขืจืฉ" ืคึฟืื ืื DHCP ืกืขืจืืืขืจ, ืึท ืคึผืึทืงืึทื ืืื DHCPACK ืคึฟืึธืจืืึทื ืคืื ืื ืกืขืจืืืขืจ ืฆื ืืขืจ ืงืืืขื ื ืกืขืจืืืขืก. ืขืก ืืื ืืขืฉืืงื ืืจืึธืืงืึทืกื ืคึผืื ืงื ืืื ืื ืืขืจืข ืคึผืึทืงืืฅ. ืืึธืืฉ, ืืื ืืขื ืงืึธื ืืื ืื ืคึฟืึทืจ ืึท DHCP ืกืขืจืืืขืจ ืืืคึผืืึทืืขื ืึทื ืืื ืคึผืืืืึธื, ื ืึธืจ ืืื ืคืึทื, ืืื ืืืคึผืืืงืึทื ืงืืื ืืจืึธืืงืึทืกื ืืขืื ืืืจื ืฉืืงื ืึท ืคึผืึทืงืึทื ืฆื ืึท ืกืคึผืขืฆืืคืืฉ ืงืืืขื ื IP, ืืืื ืขืก ืืื ืฉืืื ืืึทืืืืกื. ืืขืจืฆื, ืืขืจ DHCP ืกืขืจืืืขืจ ืืื ื ืืฉื ืืึธืจืื ืฆื ืื DHCPACK ืคึผืึทืงืึทื ืจืืืฉื ืืขื ืงืืืขื ื. ืืืื ืืขืจ ืงืืืขื ื ืืื ื ืืฉื ืืึทืงืืืขื DHCPACK, ื ืึธื ืึท ืืฉืขืช ืขืก ืคืฉืื ืจืืคึผืืฅ DHCPREQUEST
DHCPACK ืคึผืึทืงืึทื ืกืืจืืงืืืจ ืืืฉ
ืึธืจื ืืื ืืขื ืคึผืขืงื
ื ืึธืืขื ืคืื ืืืขืจื (ืคึผืจืึธืกื)
ืืืึทืฉืคึผืื
ืืงืืื
ืืืืข
ืงืืขืจืึทืคืึทืงืืืฉืึทื
1
ืฉืืืืื ืืขืื
2
ืืขืงืก
1
ืึธื ืืึธื ืืืคึผ. 1 - ืืขืื ืคืื ืงืืืขื ื ืฆื ืกืขืจืืืขืจ, 2 - ืขื ืืคืขืจ ืคืื ืกืขืจืืืขืจ ืฆื ืงืืืขื ื
2
ืืึทืจืืืืึทืจืข ืืืคึผ
1
ืืขืงืก
1
ืืืคึผ ืคืื ืืึทืื ืืืึทืจื ืึทืืจืขืก, ืืื ืืขื ืคึผืจืึธืืึธืงืึธื 1 - MAC
3
ืืึทืจืืืืึทืจืข ืืืขื ืื ืืขื ื
6
ืืขืงืก
1
ืื ืืขื ื ืคืื ืื MAC ืึทืืจืขืก ืคืื ืื ืืืื
4
ืืึธืคึผืก
1
ืืขืงืก
1
ื ืืืขืจ ืคืื ืื ืืขืจืืืืืื ืจืืฅ
5
ืืจืึทื ืกืึทืงืืืึธื ืฉืืึทื
23:cf:de:1ื
ืืขืงืก
4
ืืื ืฆืืง ืืจืึทื ืกืึทืงืืืึธื ืืืขื ืืืคืืขืจ. ืืืฉืขื ืขืจืืืืึทื ืืืจื ืืขืจ ืงืืืขื ื ืืื ืื ืึธื ืืืื ืคืื ืึท ืืงืฉื ืึธืคึผืขืจืึทืฆืืข
7
ืฆืฐืฒืืข ืจ ืื ื ืืืจืืืขืืื ืืขื
0
ืืขืงืก
4
ืฆืืื ืืื ืกืขืงืื ืืขืก ืคืื ืื ืึธื ืืืื ืคืื ืืขื ืคึผืจืึธืฆืขืก ืคืื ืืึทืงืืืขื ืึทื ืึทืืจืขืก
9
ืฉืืืืื ืคืืึทืืก
8000
ืืขืงืก
2
ืืืืขืจ ืคืืึทืืก ืืืึธืก ืงืขื ืขื ืืืื ืืึทืฉืืืื ืฆื ืึธื ืืืืึทืื ืคึผืจืึธืืึธืงืึธื ืคึผืึทืจืึทืืขืืขืจืก. ืืื ืืขื ืคืึทื, "ืืจืึธืืงืึทืกื" ืืื ืืึทืฉืืืื
11
ืงืืืขื ื IP ืึทืืจืขืก
0.0.0.0
ืคึผืึทืก
4
ืงืืืขื ื IP ืึทืืจืขืก (ืืืื ืงืืื)
15
ืืืื ืงืืืขื ื IP ืึทืืจืขืก
172.16.134.61
ืคึผืึทืก
4
IP ืึทืืจืขืก ืืขืคึฟืื ื ืืืจื ืื ืกืขืจืืืขืจ (ืืืื ืื ืืืฆื)
19
ืืืืึทืืขืจ ืกืขืจืืืขืจ IP ืึทืืจืขืก
0.0.0.0
ืคึผืึทืก
4
ืกืขืจืืืืจืขืจ IP ืึทืืจืขืก (ืืืื ืืืงืื ื)
23
ืจืืืื ืึทืืขื ื IP ืึทืืจืขืก
172.16.114.41
ืคึผืึทืก
4
IP ืึทืืจืขืก ืคืื ืื ืจืขืืข ืึทืืขื ื (ืืืฉื, ืึท ืืึทืฉืืืืขื)
27
ืงืืืขื ื MAC ืึทืืจืขืก
14:d6:4d:a7:c9:55
ืืขืงืก
6
MAC ืึทืืจืขืก ืคืื ืื ืคึผืึทืงืึทื ืกืขื ืืขืจ (ืงืืืขื ื)
31
ืงืืืขื ื ืืึทืื ืืืึทืจื ืึทืืจืขืก ืืืึทืื
ืืขืงืก
10
ืจืขืืขืจืืืืจื ืึทืืืขืงืืขืฆื. ืืืืฉืึทืืืึทืื ืึธื ืืขืคืืื ืืื ืืขืจืึธืก
41
ืกืขืจืืืืจืขืจ ืืึทืืขืืึธืก ื ืึธืืขื
ืคึผืึทืก
64
DHCP ืกืขืจืืืขืจ ื ืึธืืขื. ืืืืฉืึทืืืึทืื ื ืื ืืจืึทื ืกืืืืืขื
105
ืฉืืืืื ืืขืงืข ื ืึธืืขื
ืคึผืึทืก
128
ืืขืงืข ื ืึธืืขื ืืืืฃ ืื ืกืขืจืืืขืจ ืืขื ืืฆื ืืืจื ืืืกืงืืขืกืก ืกืืืืฉืึทื ื ืืืขื ืืืืื ื
235
ืืึทืืืง ืงืืืืขื
ืงืกื ืืืงืก: ืงืกื ืืืงืก: ืงืกื ืืืงืก: ืงืกื ืืืงืก
ืืขืงืก
4
"ืืึทืืืฉ" ื ืืืขืจ, ืืืื ืืืึธืก, ืื ืงื. ืืืจ ืงืขื ืขื ืืึทืฉืืืืขื ืึทื ืืขื ืคึผืึทืงืึทื ืืขืืขืจื ืฆื ืื DHCP ืคึผืจืึธืืึธืงืึธื
DHCP ืึธืคึผืฆืืขืก. ืงืขื ืขื ืืืื ืืื ืงืืื ืกืืจ
236
ืึธืคึผืฆืืข ื ืืืขืจ
53
ืืขืฆืขืืืขืจ
3
ืึธืคึผืฆืืข 53, ืืืึธืก ืืืคืืื ื ืื DHCP ืคึผืึทืงืึทื ืืืคึผ 5 - DHCPACK
ืึธืคึผืฆืืข ืืขื ื
1
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
5
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ื ืืืขืจ
1
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืฆื ืคืึธืจืฉืืึธืื ืื DHCP ืงืืืขื ื ืึท ื ืขืฅ ืืึทืกืงืข
ืึธืคึผืฆืืข ืืขื ื
4
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
255.255.224.0
ืคึผืึทืก
4
ืึธืคึผืฆืืข ื ืืืขืจ
3
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืฆื ืคืึธืจืฉืืึธืื ืื DHCP ืงืืืขื ื ืึท ืคืขืืืงืืึทื ืืืืืืืื
ืึธืคึผืฆืืข ืืขื ื
4
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
172.16.12.1
ืคึผืึทืก
4
ืึธืคึผืฆืืข ื ืืืขืจ
6
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืฆื ืคืึธืจืฉืืึธืื DHCP ืฆื ืื ืก ืงืืืขื ื
ืึธืคึผืฆืืข ืืขื ื
4
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
8.8.8.8
ืคึผืึทืก
4
ืึธืคึผืฆืืข ื ืืืขืจ
51
ืืขืฆืขืืืขืจ
1
ืื ืืขืื ืคืื ืื ืืจืืืก ื ืขืฅ ืคึผืึทืจืึทืืขืืขืจืก ืืื ืกืขืงืื ืืขืก, ื ืึธื ืืืึธืก ืืขืจ DHCP ืงืืืขื ื ืืืื ืืขืื ืืื ืืืืืขืจ
ืึธืคึผืฆืืข ืืขื ื
4
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
86400
ืืขืฆืขืืืขืจ
4
ืึธืคึผืฆืืข ื ืืืขืจ
82
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข 82, ืจืืคึผืืฅ ืืืึธืก ืืขืงืืืขื ืืื DHCPDISCOVER
ืึธืคึผืฆืืข ืืขื ื
18
ืืขืฆืขืืืขืจ
1
ืึธืคึผืฆืืข ืืืขืจื
01:08:00:06:00
01:01:00:00:01
02:06:00:03:0f
26:4ื:ืขืง
ืืขืฆืขืืืขืจ
18
ืกืืฃ ืคืื ืคึผืขืงื
255
ืืขืฆืขืืืขืจ
1
255 ืกืืืืึทืืืืืึทื ืื ืกืืฃ ืคืื ืื ืคึผืึทืงืึทื
ืื ืกืืึทืืืจืื ื
ืื ืื ืกืืึทืืืจืื ื ืึทืงืฉืื ืืืฉืืืื ืคืื ืื ืกืืึธืืื ื ืื ืคึผืืืืึธื ืืึทืืืฉืืื ื ืืืืืง ืคึฟืึทืจ ืึทืจืืขื. ืขืก ืืื ืื ืืขื ืืืขื ืึทื MySQL ืืื ืฉืืื ืืื ืกืืึทืืืจื ืืื ืงืึทื ืคืืืืขืจื.
FreeBSD
pkg ืื ืกืืึทืืืจื python3 python3 -m surepip pip3 install mysql-connector
ืืืื ืื
sudo apt-get install python3 sudo apt-get install pip3 sudo pip3 install mysql-connector
ืืืจ ืฉืึทืคึฟื ืึท MySQL ืืึทืืึทืืืืก, ืืคึผืืึธืึทื ืื pydhcp.sql ืืึทืืคึผ ืืื ืขืก ืืื ืงืึทื ืคืืืืขืจ ืื ืงืึทื ืคืืืืขืจืืืฉืึทื ืืขืงืข.
ืงืึธื ืคืืืืจืึทืืืึธื
ืื ืกืขืจืืืขืจ ืกืขืืืื ืืก ืืขื ืขื ืืื ืึท ืงืกืื ืืขืงืข. ืจืขืคืขืจืขื ืฅ ืืขืงืข:
1.0 0.0.0.0 255.255.255.255 192.168.0.71 8600 1 255.255.255.0 192.168.0.1 localhost ืคึผืจืืืืจื ืคึผืจืืืืจื pydhcp option_8.8.8.8_hex:sw_port82:1:20 option_22_hex:sw_port82:2:16 option_18_hex:sw_mac:82:26 40 ืืืืกืงืืืึทืื ืืคึผ, ืืึทืกืงืข, ืจืึทืืืขืจ, ืื ืก ืคึฟืื ืืืืขืจื ืืื ืึทืคึผืขืจ (ืืขืง) = ืืืืืขืจืฉืืขืจ ('{ืึธืคึผืืืึธื_3_ืึทืืขื ืืจืขืืึธืืขืื_ืืขืงืก}') ืืื ืืืืืขืจืฉืืขืจ (ืคึผืึธืจื) = ืึทืคึผืขืจ ('{ืึธืคึผืืืึธื_1_ืึทืืขื ืืกืืจืงืืืืืื_ืคึผืึธืจื_ืืขืงืก}') ืืืืกืงืืืึทืื ืืคึผ, ืืึทืกืงืข, ืจืึทืืืขืจ, ืื ืก ืคืื ืืืืขืจื ืืื upper (mac) = upper ('{sw_mac}') ืืื upper (port) = upper ('{sw_port82}') ืืืืกืงืืืึทืื ืืคึผ, ืืึทืกืงืข, ืจืึทืืืขืจ, ืื ืก ืคึฟืื ืืืืขืจื ืืื upper (mac) = upper ('{ClientMacAddress}') ืึทืจืืึทื ืืืืื ืืื ืืขืฉืืืืข (ืฉืืึทื, ืื, ืืขืง, ืืคึผ, ืืึทืืขืจืงืื ื) ืืืึทืืืขืก (ื ืื, ืืืฆื (), '{ClientMacAddress}','{RequestedIpAddress}','DHCPACK/INFORM')ืืืฆื ืืื ืืขืจ ืืขืืึทื ืืืืฃ ืื ืืึทืืก:
ืื dhcpserver ืึธืคึผืืืืืื ื ืืืฉืจืืืื ืื ืืงืขืจืืืง ืกืขืืืื ืืก ืคึฟืึทืจ ืกืืึทืจืืื ื ืื ืกืขืจืืืขืจ, ื ืืืืื:
- ืืึทืืขืืึธืก - ืืืึธืก IP ืึทืืจืขืก ืืขืจ ืกืขืจืืืขืจ ืืืกืึทื ื ืฆื ืคึผืึธืจื 67
- ืืจืึธืืงืึทืกื - ืืืึธืก IP ืืื ืื ืืจืึธืืงืึทืกื ืคึฟืึทืจ DHCPOFFER ืืื DHCPACK
- DHCPServer - ืืืึธืก ืืื ืื IP ืคืื ืื DHCP ืกืขืจืืืขืจ
- LeaseTime ืืื ืืขื ืฆืืื ืคืื ืื ืืจืืืก IP ืึทืืจืขืก
- ThreadLimit - ืืื ืคืืืข ืคึฟืขืืขื ืืืืคื ืกืืืืึทืืืืื ืืึทืกืื ืฆื ืคึผืจืึธืฆืขืก ืื ืงืึทืืื ื ืืืคึผ ืคึผืึทืงืืฅ ืืืืฃ ืคึผืึธืจื 67. ืขืก ืืื ืืขืืืื ื ืฆื ืืขืืคื ืืืืฃ ืืืื-ืืึทืกืข ืคึผืจืึทืืืฉืขืงืก ๐
- defaultMask,defaultRouter,defaultDNS - ืืืึธืก ืืื ืืขืคึฟืื ื ืฆื ืื ืึทืืึธื ืขื ื ืืืจื ืคืขืืืงืืึทื ืืืื ืึทื IP ืืื ืืขืคึฟืื ืขื ืืื ืื ืืึทืืึทืืืืก, ืึธืืขืจ ื ืึธื ืคึผืึทืจืึทืืขืืขืจืก ืืขื ืขื ื ืืฉื ืกืคึผืขืกืืคืืขื ืคึฟืึทืจ ืขืก
mysql ืึธืคึผืืืืืื ื:
ืืึทืืขืืึธืก, ื ืืืขื, ืคึผืึทืจืึธื, ืืึทืกืขื ืึทืืข - ืึทืืฅ ืจืขืื ืคึฟืึทืจ ืืื. ืึท ืืขืจื ืขื ืืขืจื ืืึทืืึทืืืืก ืกืืจืืงืืืจ ืืื ืึทืจืืึทื ืืขืฉืืงื ืืืืฃ
ืึธื ืคึฟืจืขื ืึธืคึผืืืืืื ื: ืจืืงืืืขืก ืคึฟืึทืจ ืจืืกืืืืื ื OFFER / ACK ืืขื ืขื ืืืกืงืจืืืื ืืึธ:
- offer_count - ืื ื ืืืขืจ ืคืื ืฉืืจืืช ืืื ืจืืงืืืขืก ืืืึธืก ืฆืืจืืงืงืืืขื ืึท ืจืขืืืืืึทื ืืื ืืคึผ, ืืึทืกืงืข, ืจืึทืืืขืจ, ืื ืก
- offer_n โ ืึธื ืคึฟืจืขื ืฉืืจืืงื. ืืืื ืืขืจ ืฆืืจืืงืงืขืจ ืืื ืืืืืืง, ืขืงืกืึทืงืืืฅ ืื ืคืืืืขื ืืข ืคืึธืจืฉืืึธื ืืขืื
- history_sql - ืึท ืึธื ืคึฟืจืขื ืืืึธืก ืฉืจืืืื, ืคึฟืึทืจ ืืืึทืฉืคึผืื, ืฆื ืื "ืึทืืืืึธืจืืืึทืืืึธื ืืขืฉืืืืข" ืคึฟืึทืจ ืึท ืึทืืึธื ืขื ื
ืจืืงืืืขืก ืงืขื ืขื ืึทืจืืึทื ื ืขืืขื ืืืขืจืืึทืืึทืื ืคืื ืื ืึธืคึผืฆืืขืก ืึธืคึผืืืืืื ื ืึธืืขืจ ืึธืคึผืฆืืขืก ืคืื ืื DHCP ืคึผืจืึธืืึธืงืึธื.
ืึธืคึผืฆืืขืก ืึธืคึผืืืืืื ื. ืืึธืก ืืื ืืื ืขืก ืืืขืจื ืืขืจ ืืฉืืงืึทืืืข. ืืึธ ืืืจ ืงืขื ืขื ืืึทืื ืืืขืจืืึทืืึทืื ืืืึธืก ืืืจ ืงืขื ืขื ื ืืฆื ืฉืคึผืขืืขืจ ืืื ืื ืึธื ืคึฟืจืขื ืึธืคึผืืืืืื ื.
ืคึฟืึทืจ ืืืึทืฉืคึผืื:
option_82_hex:sw_port1:20:22, ืื ืืึทืคึฟืขื ืฉืืจื ื ืขืื ืื ืืื ืฆืข ืฉืืจื ืืืึธืก ืืื ืืขืงืืืขื ืืื ืื DHCP ืืขืื ืึธืคึผืฆืืข 82, ืืื ืืขืงืก ืคึฟืึธืจืืึทื, ืืื ืื ืงืืื ืคืื 20 ืฆื 22 ืืืืขืก ืื ืงืืืกืืื ืืื ืืืืื ืขืก ืืื ืื ื ืืึทืข ืืืึทืืขืืืืืง sw_port1 (ืืึทืฉืืืืขื ืคึผืึธืจื ืคืื ืืื ืื ืืขืื ืืขืงืืืขื)
option_82_hex:sw_mac:26:40, ืืขืคืื ืืจื ืื sw_mac ืืืึทืืขืืืืืง, ืืขื ืืืขื ืื ืืขืงืก ืคืื ืื ืงืืื 26:40
ืืืจ ืงืขื ืขื ืืขื ืึทืืข ืื ืืขืืืขื ืึธืคึผืฆืืขืก ืืืึธืก ืงืขื ืขื ืืืื ืืขืืืืื ื ืืื ืงืืืืจืื ืืืจื ืกืืึทืจืืื ื ืื ืกืขืจืืืขืจ ืืื ืื -d ืืึทืฉืืืืขื. ืืืจ ืืืขืื ืืขื ืขืคึผืขืก ืืื ืืขื ืงืืึธืฅ:
- ืึท DHCPINFORM ืคึผืึทืงืึทื ืื ืืขืงืืืขื ืืืืฃ ืคึผืึธืจื 67, ืคึฟืื 0025224ad764, b'x91xa5xe0xa3xa5xa9-x8fx8a', ('172.30.114.25', 68) {'ClientMacAddress': '0025224 % "Jxd764d", ' HType': 'Ethernet', 'HostName': b'x00xa7xe91xa5xa0xa3-x5fx9a', 'ReqListDNS': True, 'ReqListDomainName': True, 'ReqListPerfowmRouterDiscover': True, 'Req: TrueRoute, 'Req: TrueRoute, 'Req: TrueRoute' ReqListSubnetMask ': ืืืช, 'ReqListVendorSpecInfo': 8, 'RequestedIpAddress': '8', 'Vendor': b'MSFT 43', 'chaddr': '0.0.0.0ad5.0', 'ciaddr': '0025224'.764'.172.30.128.13. ืคืืึทืืก ': b'x00x00', 'giaddr': '172.30.114.25', 'gpoz': 308, 'hlen': 6, 'hops': 1, 'htype': 'MAC', 'magic_cookie': b' cx82Sc ', 'op': 'DHCPINFORM', 'ืึธืคึผืืืึธื 12': 12, 'ืึธืคึผืืืึธื 53': 53, 'ืึธืคึผืืืึธื 55': 55, 'ืึธืคึผืืืึธื 60': 60, 'ืึธืคึผืืืึธื 61': 61, 'ืึธืคึผืืืึธื 82': 82, 'ืึธืคึผืืืึธื_82_ืืืื' : b'x12x01x06x00x04x00x01x00x06x02x08x00' b'x06x00x1eXx9exb2xad', 'option_82_hex': '12010600040001000602080006001: 589:2 82, 'option_18_str': "b'x82x12x01x06x00x04x00x01x00x06x02x08x00x06x00eXx1exb9xad'", 'result': False, 'secs': 2, 'siaddr' : '768', 'sw_mac': '0.0.0.0e001eb589ad', 'sw_port2': '1', 'xidbyte': b'ืึทืงืงืึธืจืืื ืืื, ืืืจ ืงืขื ืขื ืืึทื ืืืืงืืขื ืงืืื ืืืขืจืืึทืืึทืื ืืื {} ืืื ืขืก ืืืขื ืืืื ืืขืืืืื ื ืืื ืื SQL ืึธื ืคึฟืจืขื.
ืืึธืื ืืื ืื ืจืขืงืึธืจืืืจื ืคึฟืึทืจ ืืขืฉืืืืข ืึทื ืืขืจ ืงืืืขื ื ืืืงืืืขื ืื IP ืึทืืจืขืก:
ืกืขืจืืืืจืขืจ ืึธื ืืืื
./pydhcpdb.py -d -c config.xml
- ืื ืงืึทื ืกืึธืื ืจืขืืืืืึทื ืืึธืืข ืืขืืื
- c <ืืขืงืขื ืึทืืข> ืงืึทื ืคืืืืขืจืืืฉืึทื ืืขืงืข
ืืขืืจืืคืื ื
ืืื ืืืฆื ืืขืจ ืืขืืึทืืืก ืืืขืื ืืืคึผืืึทืืขื ืื ื ืื ืกืขืจืืืขืจ ืืื ืคึผืืืืึธื. ืขืก ืืื ืึท ืืืืืืืง. ืคึผืืืืึธื ืืื ืืขืืขืจื ื ืืืืฃ ืื ืคืืืขื. ืคืืืข ืืึธืืืึทื ืฅ ืืขื ืขื ืืขืืืื ืืื ืื ื ืืกื ืคืื "ืืืึทื, ืขืคืขืก ืืื ืืขืืืื ืขืก ืึทืจืืขื." ื ืื ืึธืคึผืืืืืืขื ืืืึท ืึทืืข, ืืื ืืื ืงืก ืืื ืืขื ืคืึธืจืขื ืืขืจ ืืืืคึผื ืจืขืื ืฆื ืงืืืื ืืขืจืคืึทืจืื ื ืืื ืคึผืืืืึธื ืึทื ืืืืืงืืื ื. ืืื ืืืขื ืืืืื ืขื ืืืืฃ ืื ืืขืจืกื ืืฉืืงืึทืืืข ืึทืกืคึผืขืงืฅ ืคืื ืื ืกืขืจืืืขืจ ืืืคึผืืึทืืขื ืืืืฉืึทื ืืื "ืงืึธื".
ืงืกืื ืงืึทื ืคืืืืขืจืืืฉืึทื ืืขืงืข ืคึผืึทืจืกืขืจ
ืืขืจ ื ืึธืจืืึทื ืคึผืืืืึธื ืืึธืืืืข xml.dom ืืื ืืขื ืืฆื. ืขืก ืืืื ื ืคึผืฉืื, ืึธืืขืจ ืืขืฉืึทืก ืืืคึผืืึทืืขื ืืืืฉืึทื ืขืก ืืื ืืขืืืขื ืึท ืืืืขืจืงื ืคืขืื ืคืื ืงืืึธืจ ืืึทืงืืืืขื ืืืืฉืึทื ืืื ืืืืฉืคืืื ืืืืฃ ืื ื ืขืฅ ื ืืฆื ืืขื ืืึธืืืืข.
ืืืื = minidom.parse(gconfig["config_file"]) mconfig=tree.getElementsByTagName("mysql") ืคึฟืึทืจ ืขืืขื ืืื mconfig: gconfig["mysql_host"]=elem.getElementsByTagName("host")[0].ืคืืจืกืืงืื ื. gconfig["mysql_username"]=elem.getElementsByTagName("ืืึทื ืืฆืขืจ ื ืึธืืขื")[0].firstChild.data gconfig["mysql_password"]=elem.getElementsByTagName("password")[0].firstChild.data gconfig["mysql_password" =elem.getElementsByTagName("ืืึทืกืขื ืึทืืข")[0].firstChild.data dconfig=tree.getElementsByTagName("dhcpserver") ืคึฟืึทืจ ืขืืขื ืืื dconfig: gconfig["ืืจืึธืืงืึทืกื"]=ืขืืขื.ืืขืืขืืขืืขื ืืกืืืืึทืื ืึทืืข("ืืจืึธืืงืึทืกื")[0]. firstChild.data gconfig["dhcp_host"]=elem.getElementsByTagName("host")[0].firstChild.data gconfig["dhcp_LeaseTime"]=elem.getElementsByTagName("LeaseTime")[0].firstChild.data gconfig[" dhcp_ThreadLimit"]=int(elem.getElementsByTagName("ThreadLimit")[0].firstChild.data) gconfig["dhcp_Server"]=elem.getElementsByTagName("DHCPServer")[0].firstChild.data gconfig"["dhMacp_Server"] =elem.getElementsByTagName("defaultMask")[0].firstChild.data gconfig["dhcp_defaultRouter"]=elem.getElementsByTagName("defaultRouter")[0].firstChild.data gconfig["dhcp_defaultDgetElement"](elem.getElementsByTagName("defaultRouter") defaultDNS")[0].firstChild.data qconfig=tree.getElementsByTagName("ืึธื ืคึฟืจืขื") ืคึฟืึทืจ ืขืืขื ืืื qconfig: gconfig["offer_count"]=elem.getElementsByTagName("offer_count")[0].firstChild.data ืคึฟืึทืจ ื ืืืขืจ ืืื ืงืืื(ืื ื(ืืงืึธื ืคืื["ืึธืคืคืขืจ_ืงืึธืื ื"])): ืืงืึธื ืคืื["ืึธืคืคืขืจ_"+ืกืืจ(ื ืื+1)]=ืขืืขื.ืืขืืขืืขืืขื ืฅ ืืืืืึทืื ืึทืืข("ืึธืคืคืขืจ_"+ืกืืจ(ื ืื+1))[0].ืคืืจืกืืงืืืื.ืืึทืืึท ืืงืึธื ืคืื ["history_sql"]=elem.getElementsByTagName("history_sql")[0].firstChild.data options=tree.getElementsByTagName("ืึธืคึผืฆืืขืก") ืคึฟืึทืจ ืขืืขื ืืื ืึธืคึผืฆืืขืก: node=elem.getElementsByTagName("ืึธืคึผืฆืืข") ืคึฟืึทืจ ืึธืคึผืฆืืขืก ืืื ื ืึธืืข : optionsMod.append(options.firstChild.data)ืืืืืืืืจืขืึทืืื ื
ืึทืืื ืืขื ืื, ืืืืืืืืจืขืึทืืื ื ืืื ืคึผืืืืึธื ืืื ืืืคึผืืึทืืขื ืึทื ืืืืขืจ ืงืืืจ ืืื ืคืฉืื.
def PacketWork(data,addr): ... # ืืืคึผืืึทืืขื ืืืืฉืึทื ืคืื ืคึผืึทืจืกืื ื ืื ืื ืงืึทืืื ื ืคึผืึทืงืึทื ืืื ืจืืกืคึผืึทื ื ืฆื ืขืก ... ืืฉืขืช ืืืช: ืืึทืื, adr = udp_socket.recvfrom(1024) # ืืืืจืื ืคึฟืึทืจ ืื UDP ืคึผืึทืงืึทื ืคืึธืืขื = threading.thread( target=PacketWork, args=(data,addr,)).start() # ืืื ืขืก ืืขืงืืืขื - ืืืจ ืงืึทืืขืจ ืื ืคืจืืขืจ ืืืคืืื ื ืคึผืึทืงืงืขืืืืึธืจืง ืคึฟืื ืงืฆืืข ืืื ืืขืจ ืืื ืืขืจืืจืื ื ืืื ืคึผืึทืจืึทืืขืืขืจืก ืืฉืขืช ืืจืขืืื ื.ืึทืงืืืืืข_ืงืึธืื ื () >gconfig["dhcp_ThreadLimit"]: ืฆืืื. ืฉืืึธืคื(1) # ืืืื ืื ื ืืืขืจ ืขืก ืืขื ืขื ืฉืืื ืคืืืกื ืืืง ืืขืจ ืคึฟืขืืขื ืืื ืืื ืื ืกืขืืืื ืืก, ืืืจ ืืืึทืจืื ืืื ืขืก ืืขื ืขื ืืืืื ืืงืขืจืข ืคืื โโโโืืื
ืืึทืงืืืขื / ืฉืืงื DHCP ืคึผืึทืงืึทื
ืืื ืกืืจ ืฆื ืื ืืขืจืกืขืคึผื ืืืคึผ ืคึผืึทืงืืฅ ืืืึธืก ืงืืืขื ืืืจื ืื ื ืขืฅ ืงืึธืจื, ืืืจ ืืึทืจืคึฟื ืฆื "ืืืืื" ืื ืืึธืืขื:
udp_socket = socket.socket(socket.AF_INET,socket.SOCK_DGRAM,socket.IPPROTO_UDP) udp_socket.bind((gconfig["dhcp_host"],67))
, ืืื ืื ืคืืึทืืก ืืขื ืขื:
- AF_INET - ืืืื ืึทื ืื ืึทืืจืขืก ืคึฟืึธืจืืึทื ืืืขื ืืืื IP: ืคึผืึธืจื. ืขืก ืงืขื ืืืื ืืืื AF_UNIX - ืืื ืื ืึทืืจืขืก ืืื ืืขืืขืื ืืืจื ืื ืืขืงืข ื ืึธืืขื.
- SOCK_DGRAM - ืืืื ืึทื ืืืจ ืืึธื ื ืื ืึธื ื ืขืืขื ืึท "ืจืื ืคึผืึทืงืึทื", ืึธืืขืจ ืืืื ืขืจ ืืืึธืก ืืื ืฉืืื ืืืจืืืขืืื ืืขื ืืืจื ืื ืคืืืจืืืึทื ืืื ืืื ืึท ืืืื ืืจืืืืขื ืคึผืึทืงืึทื. ืืขื ืข. ืืืจ ืืึทืงืืืขื ืืืืื ืึท UDP ืคึผืึทืงืึทื ืึธื ืื "ืืฉืืืืช" ืงืึธืืคึผืึธื ืขื ื ืคืื ืื UDP ืคึผืึทืงืึทื ืจืึทืคึผืขืจ. ืืืื ืืืจ ื ืืฆื ืื SOCK_RAW ืคืึธื, ืืืจ ืืืขื ืืืื ืืึทืจืคึฟื ืฆื ืคึผืึทืจืกืืจื ืืขื "ืจืึทืคึผืขืจ".
ืฉืืงื ืึท ืคึผืึทืงืึทื ืงืขื ืขื ืืืื ืืื ืึท ืืจืึธืืงืึทืกื:
udp_socket.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1) #ืืึทืฉืืืืขื ืื ืืึธืืขื ืฆื ืืจืึธืืงืึทืกื ืืึธืืข rz=udp_socket.sendto(packetack, (gconfig["ืืจืึธืึทืืงืึทืกื"],68))
, ืืื ืฆื ืื ืึทืืจืขืก "ืคืื ืืื ืื ืคึผืขืงื ืืขืงืืืขื ืคืื":
udp_socket.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1) # ืืึทืฉืืืืขื ืื ืืึธืืขื ืฆื ืืืืื-ืืืกื ืขืจ ืืึธืืข rz=udp_socket.sendto(packetack, addr)
, ืืื SOL_SOCKET ืืืื ืื "ืคึผืจืึธืืึธืงืึธื ืืืจืื" ืคึฟืึทืจ ืืึทืฉืืขืืืงื ืึธืคึผืฆืืขืก,
, SO_BROADCAST ืึธืคึผืฆืืข ืึทื ืืขืจ ืืขืื ืคึผืขืงื ืืื "ืืจืึธืึทืืงืึทืกื"
,SO_REUSEADDR ืึธืคึผืฆืืข ืกืืืืืฉืื ืื ืืึธืืขื ืฆื "ืคืืืข ืฆืืืขืจืขืจืก" ืืึธืืข. ืืื ืืขืึธืจืืข, ืขืก ืืื ืืื ืืืืืง ืืื ืืขื ืคืึทื, ืึธืืขืจ ืืืืฃ ืืืื ืขืจ ืคืื ืื FreeBSD ืกืขืจืืืขืจืก ืืืืฃ ืืืึธืก ืืื ืืขืกืืขื, ืื ืงืึธื ืืื ื ืืฉื ืึทืจืืขืื ืึธื ืืขื ืึธืคึผืฆืืข.
ืคึผืึทืจืกืื ื ืึท DHCP ืคึผืึทืงืึทื
ืืึธืก ืืื ืืื ืืื ืืึทืงืข ืืืืงื ืคึผืืืืึธื. ืขืก ืืืจื ืก ืืืืก ืึทื ืืืืก ืคืื ืื ืงืขืกืื ืขืก ืึทืืึทืื ืืืจ ืฆื ืืืื ืืึทื ืฅ ืคืืขืงืกืึทืืึทื ืืื ืื ืืืืขืงืึธืืข. ืึทืืึทืืื ื ืขืก ืฆื ืืืื ืืืืขืจ ืืืืื ืืืืขืจืืขืืขืฆื ืืื ืืขืฆืืืึทื ืืืึทืืืขืก, ืกืืจืื ืืก ืืื ืืขืงืก - ื.ื. ืืึธืก ืืื ืืืึธืก ืืืจ ืืึทืงืข ืืึทืจืคึฟื ืฆื ืคึฟืึทืจืฉืืืื ืื ืกืืจืืงืืืจ ืคืื ืืขื ืคึผืขืงื. ืึทืืื, ืคึฟืึทืจ ืืืึทืฉืคึผืื, ืืืจ ืงืขื ืขื ืืึทืงืืืขื ืึท ืงืืื ืคืื ืืืืขืก ืืื ืืขืงืก ืืื ื ืึธืจ ืืืืขืก:
ืจืขืก["ืงืกืืืืขืงืก"]=ืืึทืืึท[4:8].ืืขืงืก() ืจืขืก["ืงืกืืืืืืข"]=ืืึทืืึท[4:8]
, ืคึผืึทืงื ืื ืืืืขืก ืืื ืึท ืกืืจืืงืืืจ:
res["ืคืืึทืืก"]=ืคึผืึทืง('BB',data[10],data[11])ืืึทืงืืืขื IP ืคึฟืื ืกืืจืืงืืืจ:
ืจืขืก ["ืกืืึทืืืจ"] = socket.inet_ntoa (ืคึผืึทืง ('BBBB', ืืึทืื [12], ืืึทืื [13], ืืึทืื [14], ืืึทืื [15]));ืืื ืคึฟืึทืจืงืขืจื:
res=res+socket.inet_pton(socket.AF_INET, gconfig["dhcp_Server"])
ืึทื ืก ืึทืืข ืคึฟืึทืจ ืืืฆื ๐
ืืงืืจ: www.habr.com
