ROS路由VPLS+BGP基础应用

Routeros 星雨 2727℃ 0评论

假设某总公司R1的LAN1需要和分公司R2的LAN3进行L2桥接,并且LAN1和LAN3在同一个网段,要求LAN1和LAN3里的终端机器可以互相访问,支持MAC通讯,支持IPX通讯。(当然前提是LAN1和LAN3里的终端和终端之间IP不能冲突。)如果ISP禁止R1和R2之间进行BGP通讯需要先嵌套一个加密隧道,PPTP,L2TP,SSTP…等等都行。

按照如下配置关键内容即可实现需求,效果如图。

R1配置(部分关键配置示例):
/interface bridge  

add auto-mac=yes disabled=no forward-delay=15s name=LAN1-LAN3 priority=0x8000 protocol-mode=none transmit-hold-count=6  

/interface bridge port  

add bridge=LAN1-LAN3 interface=LAN1  

/routing bgp instance  

add as=65510 client-to-client-reflection=yes disabled=no ignore-as-path-len=no \  

    name=65510 out-filter="" redistribute-connected=no redistribute-ospf=no \  

    redistribute-other-bgp=no redistribute-rip=no redistribute-static=yes \  

    router-id=1.1.1.1 routing-table=""  

/routing bgp peer  

add address-families=ip,l2vpn as-override=no default-originate=never disabled=\  

    no hold-time=3m in-filter="" instance=65510 multihop=no name=65511 \  

    nexthop-choice=default out-filter="" passive=no remote-address=1.1.1.2 \  

    remote-as=65511 remove-private-as=no route-reflect=no tcp-md5-key="" ttl=\  

    default use-bfd=no  

/interface vpls bgp-vpls add bridge=LAN1-LAN3 bridge-cost=20 export-route-targets=1:1 import-route-targets=1:1 name=1 route-distinguisher=1:1 site-id=1

R2配置(部分关键配置示例):

/interface bridge  

add auto-mac=yes disabled=no forward-delay=15s name=LAN3-LAN1 priority=0x8000 protocol-mode=none transmit-hold-count=6  

/interface bridge port  

add bridge=LAN3-LAN1 interface=LAN3  

/routing bgp instance  

add as=65511 client-to-client-reflection=yes disabled=no ignore-as-path-len=no \  

    name=65511 out-filter="" redistribute-connected=no redistribute-ospf=no \  

    redistribute-other-bgp=no redistribute-rip=no redistribute-static=yes \  

    router-id=1.1.1.2 routing-table=""  

/routing bgp peer  

add address-families=ip,l2vpn as-override=no default-originate=never disabled=\  

    no hold-time=3m in-filter="" instance=65511 multihop=no name=65510 \  

    nexthop-choice=default out-filter="" passive=no remote-address=1.1.1.1 \  

    remote-as=65510 remove-private-as=no route-reflect=no tcp-md5-key="" ttl=\  

    default use-bfd=no  

/interface vpls bgp-vpls add bridge=LAN3-LAN1 bridge-cost=20 export-route-targets=1:1 import-route-targets=1:1 name=1 route-distinguisher=1:1 site-id=2

 

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