本文提供关于如何在 EIGRPv6 和 IPv6 BGP 之间使用双向再分配,将边界网关协议 (IPv6 BGP) 默认路由再分配至高级内部网关路由协议 (EIGRPv6) 的配置示例。
尝试进行此配置之前,请确保满足以下要求:
具有 EIGRPv6 的基础知识
具有 IPv6 BGP 的基础知识
具有 IPv6 寻址的基础知识
本文中的配置基于装有 Cisco IOS® 软件版本 15.0(1) 的 Cisco 7200 系列路由器。
有关文档规则的详细信息,请参阅 Cisco 技术提示规则。
在本例中,路由器 R2 和 R1 使用 IPv6 eBGP 彼此通信。路由器R1和R3使用EIGRPv6。默认路由在路由器R2中通过发出neighbor default-originate命令创建。为了将 IPv6 eBGP 路由双向分配到 EIGRPv6,请使用具有 EIGRP 指标的 redistribute bgp 命令。同样,要将EIGRPv6路由重分发到IPv6BGP,请在地址系列配置模式下使用redistribute eigrp AS number命令。
注意:使用命令查找工具(仅限注册客户)可查找有关本文档中使用的命令的详细信息。
本文档使用以下网络设置:
本文档使用以下配置:
路由器 R1 |
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R1#show run Building configuration... ! version 15.0 ! hostname R1 ! ipv6 unicast-routing ipv6 cef ! ! interface Loopback10 no ip address ipv6 address BB10::10/128 ! interface Loopback20 no ip address ipv6 address BB20::20/128 ! interface Loopback30 no ip address ipv6 address BB30::30/128 ipv6 eigrp 1 ! interface Serial1/0 no ip address ipv6 address 3030:1:1:1::11/64 serial restart-delay 0 ! interface Serial1/1 no ip address ipv6 address 4040:1:1:1::10/64 ipv6 eigrp 1 serial restart-delay 0 ! ! router bgp 505 no synchronization bgp router-id 1.1.1.1 bgp log-neighbor-changes neighbor 3030:1:1:1::10 remote-as 500 no auto-summary ! address-family ipv6 redistribute eigrp 1 !--- EIGRP is redistributed in to BGP. no synchronization network BB10::10/128 network BB20::20/128 neighbor 3030:1:1:1::10 activate exit-address-family ! ! ipv6 router eigrp 1 eigrp router-id 1.1.1.1 redistribute bgp 505 metric 100 1 255 1 1500 !--- EIGRP for IPv6 has a shutdown feature. !--- Make sure that the routing process is in "no shut" mode !--- in order to start running the protocol. !--- BGP is redistributed with EIGRP default metrics. ! end |
路由器 R2 |
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R2#show run Building configuration... ! hostname R2 ! ipv6 unicast-routing ipv6 cef ! ! interface Loopback10 no ip address ipv6 address AB10::10/128 ! interface Loopback20 no ip address ipv6 address AB20::20/128 ! interface Serial1/0 no ip address ipv6 address 3030:1:1:1::10/64 serial restart-delay 0 ! router bgp 500 no synchronization bgp router-id 2.2.2.2 bgp log-neighbor-changes neighbor 3030:1:1:1::11 remote-as 505 neighbor 3030:1:1:1::11 default-originate no auto-summary ! address-family ipv6 no synchronization network AB10::10/128 network AB20::20/128 neighbor 3030:1:1:1::11 activate neighbor 3030:1:1:1::11 default-originate exit-address-family ! end !--- Originates default route to the !--- neighbor 3030:1:1:1::11. |
路由器 R3 |
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R3#show run ! version 15.0 ! hostname R3 ! ipv6 unicast-routing ipv6 cef ! interface Loopback10 no ip address ipv6 address CC10::10/128 ipv6 eigrp 1 ! interface Loopback20 no ip address ipv6 address CC20::20/128 ipv6 eigrp 1 ! interface Serial1/0 no ip address ipv6 address 4040:1:1:1::11/64 ipv6 eigrp 1 serial restart-delay 0 ! ! ipv6 router eigrp 1 eigrp router-id 3.3.3.3 ! end |
使用本部分可确认配置能否正常运行。
命令输出解释程序(仅限注册用户)(OIT) 支持某些 show 命令。使用 OIT 可查看对 show 命令输出的分析。
为了验证路由器 R3 接收再分配的 IPv6 BGP 默认路由,请在路由器 R3 中使用 show ipv6 route eigrp 命令。
show ipv6 route eigrp |
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在路由器 R3 中 R3#show ipv6 route eigrp IPv6 Routing Table - default - 9 entries Codes: C - Connected, L - Local, S - Static, U - Per-user Static route B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary D - EIGRP, EX - EIGRP external, ND - Neighbor Discovery O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2 ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2 EX ::/0 [170/26112256] via FE80::C806:16FF:FE08:0, Serial1/0 EX AB10::10/128 [170/26112256] via FE80::C806:16FF:FE08:0, Serial1/0 EX AB20::20/128 [170/26112256] via FE80::C806:16FF:FE08:0, Serial1/0 D BB30::30/128 [90/2297856] via FE80::C806:16FF:FE08:0, Serial1/0 !--- The above output shows that the default route !--- is redistributed in EIGRP. EX indicates EIGRP external routes. |
为了验证 IPv6 BGP 默认路由在路由器 R2 中正确再分配,请在路由器 R2 中使用 show ipv6 route bgp 命令。
show ipv6 route bgp |
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在路由器 R2 中 R2#show ipv6 route bgp IPv6 Routing Table - default - 9 entries Codes: C - Connected, L - Local, S - Static, U - Per-user Static route B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary D - EIGRP, EX - EIGRP external, ND - Neighbor Discovery O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2 ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2 B BB10::10/128 [20/0] via FE80::C806:16FF:FE08:0, Serial1/0 B BB20::20/128 [20/0] via FE80::C806:16FF:FE08:0, Serial1/0 B CC10::10/128 [20/2297856] via FE80::C806:16FF:FE08:0, Serial1/0 B CC20::20/128 [20/2297856] via FE80::C806:16FF:FE08:0, Serial1/0 !--- The above output shows that the eigrp routes !--- are redistributed in to BGP. |
使用 ping 命令验证路由器 R2 和 R3 之间的可接通性。
ping |
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从路由器 R2: R2#ping CC10::10 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to CC10::10, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/40/96 ms R2#ping CC20::20 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to CC20::20, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/44/100 ms从路由器 R3: R3#ping AA10::10 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to AA10::10, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/33/92 ms R3#ping AA20::20 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to AA20::20, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/33/92 ms !--- The above ping responses shows that R1 and R3 are able !--- to communicate with each other. |
版本 | 发布日期 | 备注 |
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1.0 |
25-Jun-2012 |
初始版本 |