{"id":55823,"date":"2020-01-29T00:00:00","date_gmt":"2020-01-28T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/uskoryaem-openvpn-na-routere-openwrt-alternativnaya-versiya-bez-payalnika-i-hardvarnogo-ekstremizma"},"modified":"2020-02-18T14:03:58","modified_gmt":"2020-02-18T11:03:58","slug":"uskoryaem-openvpn-na-routere-openwrt-alternativnaya-versiya-bez-payalnika-i-hardvarnogo-ekstremizma","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/administrirovanie\/uskoryaem-openvpn-na-routere-openwrt-alternativnaya-versiya-bez-payalnika-i-hardvarnogo-ekstremizma","title":{"rendered":"Acelerando o OpenVPN no roteador OpenWrt. Vers\u00e3o alternativa sem soldador e exageros de hardware","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"Acelerando
\n
\nOl\u00e1 a todos, recentemente li um antigo artigo<\/a><\/noindex> sobre como \u00e9 poss\u00edvel acelerar o OpenVPN no roteador, movendo a criptografia para um hardware separado que \u00e9 soldado dentro do pr\u00f3prio roteador. Eu tenho uma situa\u00e7\u00e3o semelhante \u00e0 do autor \u2014 TP-Link WDR3500 com 128 megabytes de RAM e um processador fraco que n\u00e3o consegue lidar com a criptografia dos t\u00faneis. No entanto, n\u00e3o queria de forma alguma abrir o roteador com um ferro de solda. Abaixo est\u00e1 minha experi\u00eancia de mover o OpenVPN para um hardware separado, com backup no roteador em caso de falha.
\n<\/a><\/noindex><\/p>\n

Tarefa<\/h3>\n

\nEu tenho um roteador TP-Link WDR3500 e um Orange Pi Zero H2. Queremos que a criptografia dos t\u00faneis em modo normal seja feita pelo Orange Pi, e se acontecer algo com ele, o processamento VPN<\/a> volta para o roteador. Todas as configura\u00e7\u00f5es do firewall no roteador devem funcionar como antes. E, no geral, a adi\u00e7\u00e3o de um hardware extra deve ser transparente e impercept\u00edvel para todos. O OpenVPN funciona via TCP, o adaptador TAP em modo bridge (server-bridge).<\/p>\n

Solu\u00e7\u00e3o<\/h3>\n

\nEm vez de conectar via USB, decidi usar uma porta do roteador e conectar a Orange Pi a todas as sub-redes em que h\u00e1 um bridge VPN. Dessa forma, o hardware estar\u00e1 fisicamente conectado \u00e0s mesmas redes que os servidores VPN no roteador. Ap\u00f3s isso, levantamos exatamente os mesmos servidores no Orange Pi, e no roteador configuramos um proxy para encaminhar todas as conex\u00f5es entrantes para o servidor externo, e se o Orange Pi falhar ou estiver inacess\u00edvel \u2014 ent\u00e3o para um servidor interno de fallback. Eu usei o HAProxy.<\/p>\n

Acontece assim:<\/p>\n

    \n
  1. Um cliente chega<\/li>\n
  2. Se o servidor externo n\u00e3o estiver acess\u00edvel \u2014 como antes, a conex\u00e3o vai para o servidor interno<\/li>\n
  3. Se estiver acess\u00edvel \u2014 o cliente \u00e9 aceito pelo Orange Pi<\/li>\n
  4. O VPN no Orange Pi descriptografa os pacotes e os devolve ao roteador<\/li>\n
  5. O roteador os roteia para algum lugar<\/li>\n<\/ol>\n

    <\/p>\n

    Exemplo de implementa\u00e7\u00e3o<\/h3>\n

    \nEnt\u00e3o, vamos supor que temos duas redes no roteador \u2014 main(1) e guest(2), para cada uma delas h\u00e1 um servidor OpenVPN para conex\u00e3o externa.<\/p>\n

    Configura\u00e7\u00e3o da rede<\/h4>\n

    \nPrecisamos passar ambas as redes atrav\u00e9s de uma porta, ent\u00e3o criamos 2 VLANs. <\/p>\n

    No roteador na se\u00e7\u00e3o Rede\/Switch, criamos as VLANs (por exemplo, 1 e 2) e as ativamos em modo tagged na porta desejada, adicionamos os rec\u00e9m-criados eth0.1 e eth0.2 \u00e0s redes correspondentes (por exemplo, adicionamos ao bridge). <\/p>\n

    No Orange Pi, criamos duas interfaces VLAN (eu estou usando Archlinux ARM + netctl):<\/p>\n

    \/etc\/netctl\/vlan-main<\/b><\/p>\n

    Description='Main VLAN on eth0'\nInterface=vlan-main\nConnection=vlan\nBindsToInterfaces=eth0\nVLANID=1\nIP=no\n<\/code><\/pre>\n
    \n\/etc\/netctl\/vlan-guest<\/b><\/p>\n
    Description='Guest VLAN on eth0'\nInterface=vlan-guest\nConnection=vlan\nBindsToInterfaces=eth0\nVLANID=2\nIP=no\n<\/code><\/pre>\n
    \nE imediatamente criamos duas bridges para elas:<\/p>\n
    \/etc\/netctl\/br-main<\/b><\/p>\n
    Description="Conex\u00e3o Principal do Bridge"\nInterface=br-main\nConnection=bridge\nBindsToInterfaces=(vlan-main)\nIP=dhcp\n<\/code><\/pre>\n
    \n\/etc\/netctl\/br-guest<\/b><\/p>\n
    Description="Conex\u00e3o do Bridge de Convidados"\nInterface=br-guest\nConnection=bridge\nBindsToInterfaces=(vlan-guest)\nIP=dhcp\n<\/code><\/pre>\n
    \nAtivamos o auto-in\u00edcio em todos os 4 perfis (netctl enable). Agora, ap\u00f3s reiniciar, o Orange Pi ficar\u00e1 conectado em duas redes necess\u00e1rias. Configuramos os endere\u00e7os das interfaces no Orange Pi nas Leases Est\u00e1ticas do roteador. <\/p>\n
    ip addr show<\/b><\/p>\n
    4: vlan-main@eth0:  mtu 1500 qdisc noqueue master br-main estado UP grupo padr\u00e3o qlen 1000\n    link\/ether 02:42:f0:f8:23:c8 brd ff:ff:ff:ff:ff:ff\n    inet6 fe80::42:f0ff:fef8:23c8\/64 escopo link \n       lft v\u00e1lido para sempre lft preferido para sempre\n\n5: vlan-guest@eth0:  mtu 1500 qdisc noqueue master br-guest estado UP grupo padr\u00e3o qlen 1000\n    link\/ether 02:42:f0:f8:23:c8 brd ff:ff:ff:ff:ff:ff\n    inet6 fe80::42:f0ff:fef8:23c8\/64 escopo link \n       lft v\u00e1lido para sempre lft preferido para sempre\n\n6: br-main:  mtu 1500 qdisc noqueue estado UP grupo padr\u00e3o qlen 1000\n    link\/ether 52:c7:0f:89:71:6e brd ff:ff:ff:ff:ff:ff\n    inet 192.168.1.3\/24 brd 192.168.1.255 escopo global din\u00e2mico noprefixroute br-main\n       lft v\u00e1lido 29379sec lft preferido 21439sec\n    inet6 fe80::50c7:fff:fe89:716e\/64 escopo link \n       lft v\u00e1lido para sempre lft preferido para sempre\n\n7: br-guest:  mtu 1500 qdisc noqueue estado UP grupo padr\u00e3o qlen 1000\n    link\/ether ee:ea:19:31:34:32 brd ff:ff:ff:ff:ff:ff\n    inet 192.168.2.3\/24 brd 192.168.2.255 escopo global br-guest\n       lft v\u00e1lido para sempre lft preferido para sempre\n    inet6 fe80::ecea:19ff:fe31:3432\/64 escopo link \n       lft v\u00e1lido para sempre lft preferido para sempre\n<\/code><\/pre>\n
    <\/p>\n
    Configura\u00e7\u00e3o de VPN<\/h4>\n
    \nEm seguida, copiamos as configura\u00e7\u00f5es do roteador para o OpenVPN e as chaves. As configura\u00e7\u00f5es geralmente podem ser obtidas em \/tmp\/etc\/openvpn*.conf<\/i><\/p>\n
    Por padr\u00e3o, o openvpn, executado em modo TAP e server-bridge, mant\u00e9m sua interface inativa. Para que tudo funcione, \u00e9 necess\u00e1rio adicionar um script que ser\u00e1 executado ao ativar a conex\u00e3o. <\/p>\n
    \/etc\/openvpn\/main.conf<\/b><\/p>\n
    dev vpn-main\ndev-type tap\n\nclient-to-client\npersist-key\npersist-tun\nca \/etc\/openvpn\/main\/ca.crt\ncert \/etc\/openvpn\/main\/main.crt\ncipher AES-256-CBC\ncomp-lzo yes\ndh \/etc\/openvpn\/main\/dh2048.pem\nifconfig-pool-persist \/etc\/openvpn\/ipp_main.txt\nkeepalive 10 60\nkey \/etc\/openvpn\/main\/main.key\nport 443\nproto tcp\npush "redirect-gateway"\npush "dhcp-option DNS 192.168.1.1"\nserver-bridge 192.168.1.3 255.255.255.0 192.168.1.200 192.168.1.229\nstatus \/tmp\/openvpn.main.status\nverb 3\n\nsetenv profile_name main\nscript-security 2\nup \/etc\/openvpn\/vpn-up.sh\n<\/code><\/pre>\n
    \n\/etc\/openvpn\/vpn-up.sh<\/b><\/p>\n
    #!\/bin\/sh\n\nifconfig vpn-${profile_name} up\nbrctl addif br-${profile_name} vpn-${profile_name}\n<\/code><\/pre>\n
    \nComo resultado, assim que a conex\u00e3o for estabelecida, a interface vpn-main ser\u00e1 adicionada ao br-main. Para a rede guest, o procedimento \u00e9 similar, mantendo a mesma l\u00f3gica em rela\u00e7\u00e3o ao nome da interface e ao endere\u00e7o em server-bridge.<\/p>\n
    Roteamento de solicita\u00e7\u00f5es externas e proxy<\/h4>\n
    \nNeste passo, o Orange Pi j\u00e1 \u00e9 capaz de aceitar conex\u00f5es e permitir que clientes acessem as redes necess\u00e1rias. Agora, precisamos configurar o proxy para as conex\u00f5es de entrada no roteador. <\/p>\n
    Transferimos os servidores VPN do roteador para outras portas, instalamos o HAProxy no roteador e configuramos:<\/p>\n
    \/etc\/haproxy.cfg<\/b><\/p>\n
    global\n        maxconn 256\n        uid 0\n        gid 0\n        daemon\n\ndefaults\n        retries 1\n        contimeout 1000\n        option splice-auto\n\nlisten guest_vpn\n        bind :444\n        mode tcp\n        server 0-orange 192.168.2.3:444 check\n        server 1-local  127.0.0.1:4444 check backup\n\nlisten main_vpn\n        bind :443\n        mode tcp\n        server 0-orange 192.168.1.3:443 check\n        server 1-local  127.0.0.1:4443 check backup\n<\/code><\/pre>\n
    <\/p>\n
    Apreciamos<\/h4>\n
    \nSe tudo correr conforme o planejado, os clientes migrar\u00e3o para o Orange Pi, e o processador do roteador n\u00e3o superaquecer\u00e1 mais, enquanto a velocidade do VPN aumentar\u00e1 significativamente. Al\u00e9m disso, todas as regras de rede configuradas no roteador permanecer\u00e3o v\u00e1lidas. Em caso de falha no Orange Pi, ele desconectar\u00e1 e o HAProxy redirecionar\u00e1 os clientes para os servidores locais. <\/p>\n
    Obrigado pela aten\u00e7\u00e3o, sugest\u00f5es e corre\u00e7\u00f5es s\u00e3o bem-vindas.
    \n
    Fonte: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"
    \u0412\u0441\u0435\u043c \u043f\u0440\u0438\u0432\u0435\u0442, \u043d\u0435\u0434\u0430\u0432\u043d\u043e \u043f\u0440\u043e\u0447\u0438\u0442\u0430\u043b \u0434\u0430\u0432\u043d\u044e\u044e \u0441\u0442\u0430\u0442\u044c\u044e \u043e \u0442\u043e\u043c, \u043a\u0430\u043a \u043c\u043e\u0436\u043d\u043e \u0443\u0441\u043a\u043e\u0440\u0438\u0442\u044c OpenVPN \u043d\u0430 \u0440\u043e\u0443\u0442\u0435\u0440\u0435, \u043f\u0435\u0440\u0435\u043d\u0435\u0441\u044f \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043d\u0430 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u0443\u044e \u0436\u0435\u043b\u0435\u0437\u043a\u0443, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u0440\u0438\u043f\u0430\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0432\u043d\u0443\u0442\u0440\u0438 \u0441\u0430\u043c\u043e\u0433\u043e \u0440\u043e\u0443\u0442\u0435\u0440\u0430. \u0423 \u043c\u0435\u043d\u044f \u0430\u043d\u0430\u043b\u043e\u0433\u0438\u0447\u043d\u044b\u0439 \u0441 \u0430\u0432\u0442\u043e\u0440\u043e\u043c \u0441\u043b\u0443\u0447\u0430\u0439 \u2014 TP-Link WDR3500 \u0441 128 \u043c\u0435\u0433\u0430\u0431\u0430\u0439\u0442\u0430\u043c\u0438 \u043e\u043f\u0435\u0440\u0430\u0442\u0438\u0432\u043a\u0438 \u0438 \u0431\u0435\u0434\u043d\u044b\u043c \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u043c, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043d\u0430\u043f\u0440\u043e\u0447\u044c \u043d\u0435 \u0441\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0441 \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0442\u0443\u043d\u043d\u0435\u043b\u0435\u0439. \u041e\u0434\u043d\u0430\u043a\u043e, \u043b\u0435\u0437\u0442\u044c \u0432 \u0440\u043e\u0443\u0442\u0435\u0440 \u0441 \u043f\u0430\u044f\u043b\u044c\u043d\u0438\u043a\u043e\u043c \u043c\u043d\u0435 \u043a\u0430\u0442\u0435\u0433\u043e\u0440\u0438\u0447\u0435\u0441\u043a\u0438 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":55824,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-55823","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Acelerando o OpenVPN no roteador Openwrt. Vers\u00e3o alternativa sem soldador e extremismo em hardware | ProHoster","description":"","canonical_url":"https:\/\/prohoster.info\/pt\/blog\/administrirovanie\/uskoryaem-openvpn-na-routere-openwrt-alternativnaya-versiya-bez-payalnika-i-hardvarnogo-ekstremizma","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"pt_PT","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0423\u0441\u043a\u043e\u0440\u044f\u0435\u043c OpenVPN \u043d\u0430 \u0440\u043e\u0443\u0442\u0435\u0440\u0435 Openwrt. \u0410\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u043d\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u0431\u0435\u0437 \u043f\u0430\u044f\u043b\u044c\u043d\u0438\u043a\u0430 \u0438 \u0445\u0430\u0440\u0434\u0432\u0430\u0440\u043d\u043e\u0433\u043e \u044d\u043a\u0441\u0442\u0440\u0435\u043c\u0438\u0437\u043c\u0430 | ProHoster","og:url":"https:\/\/prohoster.info\/pt\/blog\/administrirovanie\/uskoryaem-openvpn-na-routere-openwrt-alternativnaya-versiya-bez-payalnika-i-hardvarnogo-ekstremizma","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2020-01-28T21:00:00+00:00","article:modified_time":"2020-02-18T11:03:58+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"55823","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-02-28 19:36:29","updated":"2026-02-04 14:42:02","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/posts\/55823","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/comments?post=55823"}],"version-history":[{"count":1,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/posts\/55823\/revisions"}],"predecessor-version":[{"id":156721,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/posts\/55823\/revisions\/156721"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/media\/55824"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/media?parent=55823"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/categories?post=55823"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/tags?post=55823"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}