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51-高级路由:BGP community属性:local-as

时间:2018-07-07 18:01:19      阅读:216      评论:0      收藏:0      [点我收藏+]

标签:proc   cto   acl   -o   验证   config   perm   ext   调用   

一、实验拓扑:
技术分享图片
二、实验要求:
1、R4、R1、R3、R2分别在BGP进程下部署邻居发送团体属性命令;
2、R4上部署ACL抓取4.4.4.4流量、route-map命名as、调用ACL、set community local-as;并在BGP进程中调用route-map as out;
3、验证:R1、R3有4.4.4.4,但是R2没有4.4.4.0的路由条目?

三、命令部署:
R4(config)#route-map as permit 10
R4(config-route-map)#match ip address 10
R4(config-route-map)#set community local-as
R4(config-route-map)##route-map as permit 1000

R4(config)#router bgp 4
R4(config-router)#neighbor 14.1.1.1 route-map as out

四、验证:
R1#show ip bgp 4.4.4.4
BGP routing table entry for 4.4.4.0/24, version 4
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised outside local AS)
Flag: 0x8A0
Advertised to update-groups:
2
4
14.1.1.4 from 14.1.1.4 (4.4.4.4)
Origin IGP, metric 0, localpref 100, valid, external, best
Community: local-AS

R3#show ip bgp 4.4.4.4
BGP routing table entry for 4.4.4.0/24, version 4
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised outside local AS)
Flag: 0x8A0
Not advertised to any peer
4
1.1.1.1 (metric 156160) from 1.1.1.1 (1.1.1.1)
Origin IGP, metric 0, localpref 100, valid, confed-internal, best
Community: local-AS

R2#show ip bgp 4.4.4.4
% Network not in table

技术分享图片

51-高级路由:BGP community属性:local-as

标签:proc   cto   acl   -o   验证   config   perm   ext   调用   

原文地址:http://blog.51cto.com/13856092/2138194

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