Afirandina tunelek IPSec GRE di navbera Mikrotik hEX S û Juniper SRX de bi Modem USB

Armanc

Pêdivî ye ku di navbera du cîhazan de, wekî xeta Mikrotik û Juniper SRX, Tunnelek VPN were organîze kirin.

Çi heye?

Ji Mikrotik, me modelek li ser malpera wiki Mikrotik hilbijart ku dikare şîfrekirina hardware IPSec piştgirî bike; bi dîtina me, ew derket holê ku ew pir tevlihev û erzan e, ango Mikrotik hEXS.

Modem USB ji operatorê herî nêzîk a mobîl hate kirîn; modela Huawei E3370 bû. Ji bo ku em ji operatorê qut bibin me tu operasyon nekiriye. Her tişt standard e û ji hêla operator bixwe ve hatî kişandin.

The core xwedan routerek navendî ya Juniper SRX240H e.

Çi qewimî

Mimkun bû ku hûn nexşeyek xebatê bicîh bînin ku destûrê dide we ku hûn pêwendiyek IPsec bi navgînek operatorek hucreyî, bêyî ku navnîşek statîk hebe, bi karanîna modemek, ku Tunela GRE tê de tê pêçandin, biafirînin.

Ev diyagrama girêdanê li ser modemên Beeline û Megafon USB tê bikar anîn û dixebite.

Veavakirin wiha ye:

Juniper SRX240H di bingehê de hatî saz kirin
Navnîşana Herêmî: 192.168.1.1/24
Navnîşana Derveyî: 1.1.1.1/30
GW: 1.1.1.2

xala dûr

Mikrotik hEX S
Navnîşana Herêmî: 192.168.152.1/24
Navnîşana Derveyî: Dînamîk

Diagramek piçûk ku ji we re bibe alîkar ku hûn fêm bikin ka ew çawa dixebite:

Afirandina tunelek IPSec GRE di navbera Mikrotik hEX S û Juniper SRX de bi Modem USB

Veavakirina Juniper SRX240:

Serbestberdana Nermalava JUNOS [12.1X46-D82]

Veavakirina Juniper

interfaces {
    ge-0/0/0 {
        description Internet-1;
        unit 0 {
            family inet {
                address 1.1.1.1/30;
            }
        }
    }
    gr-0/0/0 {
        unit 1 {
            description GRE-Tunnel;
            tunnel {
                source 172.31.152.2;
                destination 172.31.152.1;
            }
            family inet;    
    vlan {
        unit 0 {
            family inet {
                address 192.168.1.1/24;
            }
        }
    st0 {
        unit 5 {
            description "Area - 192.168.152.0/24";
            family inet {
                mtu 1400;
            }
        }
routing-options {
    static {
        route 0.0.0.0/0 next-hop 1.1.1.2;
        route 192.168.152.0/24 next-hop gr-0/0/0.1;
        route 172.31.152.0/30 next-hop st0.5;
    }
    router-id 192.168.1.1;
}
security {
    ike {
        traceoptions {
            file vpn.log size 256k files 5;
            flag all;
        }
        policy ike-gretunnel {
            mode aggressive;
            description area-192.168.152.0;
            proposal-set standard;
            pre-shared-key ascii-text "mysecret"; ## SECRET-DATA
        }
        gateway gw-gretunnel {
            ike-policy ike-gretunnel;
            dynamic inet 172.31.152.1;
            external-interface ge-0/0/0.0;
            version v2-only;
        }
    ipsec {
        }
        policy vpn-policy0 {
            perfect-forward-secrecy {
                keys group2;
            }
            proposal-set standard;
        }
        vpn vpn-gretunnel {
            bind-interface st0.5;
            df-bit copy;
            vpn-monitor {
                optimized;
                source-interface st0.5;
                destination-ip 172.31.152.1;
            }
            ike {
                gateway gw-gretunnel;
                no-anti-replay;
                ipsec-policy vpn-policy0;
                install-interval 10;
            }
            establish-tunnels immediately;
        }
    }
    policies {  
        from-zone vpn to-zone vpn {
            policy st-vpn-vpn {
                match {
                    source-address any;
                    destination-address any;
                    application any;
                }
                then {
                    permit;
                    log {
                        session-init;   
                        session-close;
                    }
                    count;
                }
            }
        }
        from-zone trust to-zone vpn {
            policy st-trust-to-vpn {
                match {
                    source-address any;
                    destination-address any;
                    application any;
                }
                then {                  
                    permit;
                    log {
                        session-init;
                        session-close;
                    }
                    count;
                }
            }
        }
        from-zone vpn to-zone trust {
            policy st-vpn-to-trust {
                match {
                    source-address any;
                    destination-address any;
                    application any;
                }
                then {
                    permit;
                    log {
                        session-init;
                        session-close;
                    }
                    count;
                }
            }
        }
    zones {                             
        security-zone trust {
                vlan.0 {
                    host-inbound-traffic {
                        system-services {
                            all;
                        }
                        protocols {
                            all;
                        }
                    }
                }
        security-zone vpn {
            interfaces {
                st0.5 {
                    host-inbound-traffic {
                        protocols {
                            ospf;
                        }
                    }
                }
                gr-0/0/0.1 {
                    host-inbound-traffic {
                        system-services {
                            all;
                        }
                        protocols {
                            all;        
                        }
                    }
                }
        security-zone untrust {
            interfaces {
                ge-0/0/0.0 {
                    host-inbound-traffic {
                        system-services {
                            ping;
                            ssh;
                            ike;
                        }
                    }
                }
            }
        }
vlans {                                 
    vlan-local {
        vlan-id 5;
        l3-interface vlan.1;
    }

Veavakirina Mikrotik hEX S:

Guhertoya nermalava RouterOS [6.44.3]

Veavakirina Mikrotik

/ip address
add address=172.31.152.1/24 comment=GRE-Tunnel interface=gre-srx network=172.31.152.0
add address=192.168.152.1/24 comment=Local-Area interface=bridge network=192.168.152.0

/interface gre
add comment=GRE-Tunnel-SRX-HQ !keepalive local-address=172.31.152.1 name=gre-srx remote-address=172.31.152.2

/ip ipsec policy group
add name=srx-gre

/ip ipsec profile
add dh-group=modp1024 dpd-interval=10s name=profile1

/ip ipsec peer
add address=1.1.1.1/32 comment=GRE-SRX exchange-mode=aggressive local-address=172.31.152.1 name=peer2 profile=profile1

/ip ipsec proposal
set [ find default=yes ] enc-algorithms=aes-256-cbc,aes-128-cbc,3des
add enc-algorithms=aes-128-cbc,3des name=proposal1

/ip route
add distance=10 dst-address=192.168.0.0/16 gateway=gre-srx

/ip ipsec identity
add comment=IPSec-GRE my-id=address:172.31.152.1 peer=peer2 policy-template-group=srx-gre secret=mysecret

/ip ipsec policy
set 0 disabled=yes
add dst-address=0.0.0.0/0 proposal=proposal1 sa-dst-address=1.1.1.1 sa-src-address=172.31.152.1 src-address=172.31.152.0/30 tunnel=yes

/ip address
add address=172.31.152.1/24 comment=GRE-Tunnel interface=gre-srx network=172.31.152.0
add address=192.168.152.1/24 comment=Local-Area interface=bridge network=192.168.152.0

Encam:
Ji aliyê Juniper SRX

netscreen@srx240> ping 192.168.152.1  
PING 192.168.152.1 (192.168.152.1): 56 data bytes
64 bytes from 192.168.152.1: icmp_seq=0 ttl=64 time=29.290 ms
64 bytes from 192.168.152.1: icmp_seq=1 ttl=64 time=28.126 ms
64 bytes from 192.168.152.1: icmp_seq=2 ttl=64 time=26.775 ms
64 bytes from 192.168.152.1: icmp_seq=3 ttl=64 time=25.401 ms
^C
--- 192.168.152.1 ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max/stddev = 25.401/27.398/29.290/1.457 ms

Ji Mikrotik

net[admin@GW-LTE-] > ping 192.168.1.1 
  SEQ HOST                                     SIZE TTL TIME  STATUS                                                                                                                                               
    0 192.168.1.1                                56  64 34ms 
    1 192.168.1.1                                56  64 40ms 
    2 192.168.1.1                                56  64 37ms 
    3 192.168.1.1                                56  64 40ms 
    4 192.168.1.1                                56  64 51ms 
    sent=5 received=5 packet-loss=0% min-rtt=34ms avg-rtt=40ms max-rtt=51ms 

vebiguherin

Piştî xebata ku hate kirin, me Tunelek VPN ya domdar wergirt, ji tora dûr em dikarin xwe bigihînin tevaya tora ku li pişt juniper-ê ye, û, li gorî, paşde.

Ez pêşniyar nakim ku di vê nexşeyê de IKE2 bikar bînin; rewşek derket ku piştî nûvekirina amûrek taybetî, IPSec ranebû.

Source: www.habr.com

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