Dear all,
three routers connected as below R1 - R2 - R3
Note "-" is frame relay switching
Questions:
- Why can't I see network 131.108.1.0 from r3? and how can I make r3 ping that network?
- Why can't I ping network 131.108.2.0, 131.108.3.0, 131.108.4.0 from r3 even though I can see the route? How can I make r3 ping those networks?
--------------------------------------- r1#sh run hostname r1 ! interface Loopback0 ip address 131.108.2.1 255.255.255.0 ! interface Loopback1 ip address 131.108.3.1 255.255.255.0 ! interface Loopback2 ip address 131.108.4.1 255.255.255.0 ! interface Serial0 no ip address encapsulation frame-relay ! interface Serial0.1 multipoint ip address 131.108.1.1 255.255.255.0 frame-relay map ip 131.108.1.2 222 broadcast ! router bgp 1 no synchronization bgp log-neighbor-changes network 131.108.2.0 mask 255.255.255.0 network 131.108.3.0 mask 255.255.255.0 network 131.108.4.0 mask 255.255.255.0 neighbor 131.108.1.2 remote-as 1
r1#sh ip route 131.108.0.0/24 is subnetted, 4 subnets C 131.108.4.0 is directly connected, Loopback2 C 131.108.3.0 is directly connected, Loopback1 C 131.108.2.0 is directly connected, Loopback0 C 131.108.1.0 is directly connected, Serial0.1
r1#sh ip bgp BGP table version is 4, local router ID is 131.108.1.1 Network Next Hop Metric LocPrf Weight Path
*> 131.108.2.0/24 0.0.0.0 0 32768 i *> 131.108.3.0/24 0.0.0.0 0 32768 i *> 131.108.4.0/24 0.0.0.0 0 32768 i---------------------------------------------------
r2#sh run hostname r2 ! interface Serial0 no ip address encapsulation frame-relay ! interface Serial0.1 multipoint ip address 131.108.1.2 255.255.255.0 frame-relay map ip 131.108.1.1 111 broadcast ! interface Serial0.2 multipoint ip address 131.108.255.1 255.255.255.252 frame-relay map ip 131.108.255.2 333 broadcast ! router bgp 1 no synchronization bgp log-neighbor-changes neighbor 131.108.1.1 remote-as 1 neighbor 131.108.255.2 remote-as 2
r2#sh ip route Gateway of last resort is not set
131.108.0.0/16 is variably subnetted, 5 subnets, 2 masks C 131.108.255.0/30 is directly connected, Serial0.2 B 131.108.4.0/24 [200/0] via 131.108.1.1, 00:18:22 B 131.108.3.0/24 [200/0] via 131.108.1.1, 00:18:22 B 131.108.2.0/24 [200/0] via 131.108.1.1, 00:18:22 C 131.108.1.0/24 is directly connected, Serial0.1r2#sh ip bgp BGP table version is 4, local router ID is 131.108.1.2 Network Next Hop Metric LocPrf Weight Path
*>i131.108.2.0/24 131.108.1.1 0 100 0 i *>i131.108.3.0/24 131.108.1.1 0 100 0 i *>i131.108.4.0/24 131.108.1.1 0 100 0 i----------------------------------------------------
r3#sh run hostname r3 ! interface Serial0 no ip address encapsulation frame-relay ! interface Serial0.1 multipoint ip address 131.108.255.2 255.255.255.252 frame-relay map ip 131.108.255.1 222 broadcast ! router bgp 2 bgp log-neighbor-changes neighbor 131.108.255.1 remote-as 1
r3#sh ip route Gateway of last resort is not set 131.108.0.0/16 is variably subnetted, 4 subnets, 2 masks C 131.108.255.0/30 is directly connected, Serial0.1 B 131.108.4.0/24 [20/0] via 131.108.255.1, 00:21:08 B 131.108.3.0/24 [20/0] via 131.108.255.1, 00:21:08 B 131.108.2.0/24 [20/0] via 131.108.255.1, 00:21:08
r3#sh ip bgp BGP table version is 4, local router ID is 131.108.255.2 Network Next Hop Metric LocPrf Weight Path
*> 131.108.2.0/24 131.108.255.1 0 1 i *> 131.108.3.0/24 131.108.255.1 0 1 i *> 131.108.4.0/24 131.108.255.1 0 1 i------------------------------------------------------------------