标签：R4 bgp R3 0.0 GigabitEthernet0 BGP 实验 ip
实验拓扑图如下：
配置接口IP、环回
[R1]int GigabitEthernet 0/0/0
[R1-GigabitEthernet0/0/0]ip address 13.0.0.1 24
[R1-GigabitEthernet0/0/0]q
[R1]int l0
[R1-LoopBack0]ip address 1.1.1.1 32
[R1-LoopBack0]q
[R2]int GigabitEthernet 0/0/0
[R2-GigabitEthernet0/0/0]ip address 24.0.0.1 24
[R2-GigabitEthernet0/0/0]q
[R2]int l0
[R2-LoopBack0]ip address 2.2.2.2 32
[R2-LoopBack0]q
[R3]int GigabitEthernet 0/0/0
[R3-GigabitEthernet0/0/0]ip address 13.0.0.2 24
[R3-GigabitEthernet0/0/0]int GigabitEthernet 0/0/1
[R3-GigabitEthernet0/0/1]ip address 35.0.0.1 24
[R3-GigabitEthernet0/0/1]q
[R3]int l0
[R3-LoopBack0]ip address 3.3.3.3 32
[R3-LoopBack0]q
[R4]int GigabitEthernet 0/0/0
[R4-GigabitEthernet0/0/0]ip address 24.0.0.2 24
[R4-GigabitEthernet0/0/0]int GigabitEthernet 0/0/1
[R4-GigabitEthernet0/0/1]ip address 45.0.0.1 24
[R4-GigabitEthernet0/0/1]
[R4-GigabitEthernet0/0/1]q
[R4]int l0
[R4-LoopBack0]ip address 4.4.4.4 32
[R4-LoopBack0]q
[R5]int GigabitEthernet 0/0/0
[R5-GigabitEthernet0/0/0]ip address 35.0.0.2 24
[R5-GigabitEthernet0/0/0]int GigabitEthernet 0/0/1
[R5-GigabitEthernet0/0/1]ip address 45.0.0.2 24
[R5-GigabitEthernet0/0/1]q
[R5]int l0
[R5-LoopBack0]ip address 5.5.5.5 32
[R5-LoopBack0]q
AS300内启用OSPF
[R3]ospf 1 router-id 3.3.3.3
[R3-ospf-1]a 0
[R3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
[R3-ospf-1-area-0.0.0.0]network 35.0.0.0 0.0.0.255
[R3-ospf-1-area-0.0.0.0]q
[R4]ospf 1 router-id 4.4.4.4
[R4-ospf-1]a 0
[R4-ospf-1-area-0.0.0.0]network 4.4.4.4 0.0.0.0
[R4-ospf-1-area-0.0.0.0]network 45.0.0.0 0.0.0.255
[R4-ospf-1-area-0.0.0.0]q
[R5]ospf 1 router-id 5.5.5.5
[R5-ospf-1]a 0
[R5-ospf-1-area-0.0.0.0]network 5.5.5.5 0.0.0.0
[R5-ospf-1-area-0.0.0.0]network 35.0.0.0 0.0.0.255
[R5-ospf-1-area-0.0.0.0]network 45.0.0.0 0.0.0.255BGP建邻
EBGP邻居的建立（利用直连）
[R1]bgp 100
[R1-bgp]router-id 1.1.1.1
[R1-bgp]peer 13.0.0.2 as-number 300
[R2]bgp 200
[R2-bgp]router-id 2.2.2.2
[R2-bgp]peer 24.0.0.2 as-number 300
[R3]bgp 300
[R3-bgp]router-id 3.3.3.3
[R3-bgp]peer 13.0.0.1 as-number 100
[R4]bgp 300
[R4-bgp]router-id 4.4.4.4
[R4-bgp]peer 24.0.0.1 as-number 200IBGP邻居的建立（利用环回建立）
[R3-bgp]peer 4.4.4.4 as-number 300
[R3-bgp]peer 4.4.4.4 connect-interface LoopBack 0
[R4-bgp]peer 3.3.3.3 as-number 300
[R4-bgp]peer 3.3.3.3 connect-interface LoopBack 0
查看邻居
<R1>display bgp peer
BGP local router ID : 1.1.1.1
Local AS number : 100
Total number of peers : 1 Peers in established state : 1
Peer V AS MsgRcvd MsgSent OutQ Up/Down State PrefRcv
13.0.0.2 4 300 12 13 0 00:10:16 Established 0
配置静态路由
[R1]ip route-static 3.3.3.3 32 13.0.0.2
[R2]ip route-static 4.4.4.4 32 24.0.0.2
[R3]ip route-static 1.1.1.1 32 13.0.0.1
[R4]ip route-static 2.2.2.2 32 24.0.0.1
引入路由
[r3]route-policy ddd permit node 10
[r3-route-policy]if-match interface GigabitEthernet 0/0/0 #接口匹配
[r3-route-policy]if-match interface GigabitEthernet 0/0/1
[R3-route-policy]q
[r3]bgp 300
[r3-bgp]import-route direct route-policy ddd
[r4]route-policy ddd permit node 10
[r4-route-policy]if-match interface GigabitEthernet 0/0/0
[r4-route-policy]if-match interface GigabitEthernet 0/0/1
[R4-route-policy]q
[r4]bgp 300
[r4-bgp]import-route direct route-policy ddd
过滤
新加俩环回
[r1]int l1
[r1-LoopBack1]ip add 10.10.10.10 32
[r1-LoopBack1]int l2
[r1-LoopBack2]ip add 20.20.20.20 32
[r1]bgp 100
[r1-bgp]network 10.10.10.0 32
[r1-bgp]network 20.20.20.0 32
使用前缀列表来实现过滤
[r1]ip ip-prefix 10 deny 10.10.10.10 32 10.10.10.10
[r1]ip ip-prefix 10 permit 0.0.0.0 0 less-equal 32
[r1]bgp 100
[r1-bgp]peer 13.0.0.2 ip-prefix 10 export
标签：R4,bgp,R3,0.0,GigabitEthernet0,BGP,实验,ip 来源： https://blog.csdn.net/qq_46839776/article/details/120692004
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