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MPLS bgp Issue

Ammartehsein
Level 1
Level 1

I have configured MPLS BGP in GNS3. In core ISP network I run EIGRP as igp.MP-BGP is working fine. It seems everything working fine. When I advertise routes from one end of my site, I receive those routes on the other end of the site as expected. But the problem is that I am unable to ping that IP.

 

Routes advertised from one end of the site:

The Gateway of last resort is not set

17.0.0.0/30 is subnetted, 1 subnets
C 17.1.1.0 is directly connected, Serial2/2
42.0.0.0/32 is subnetted, 1 subnets
C 42.42.42.42 is directly connected, Loopback1
R7#
R7#
R7#sh run | sec bgp
router bgp 1000
no synchronization
bgp log-neighbor-changes
network 42.42.42.42 mask 255.255.255.255
neighbor 17.1.1.2 remote-as 500
no auto-summary

 

Route Received on other end at site:

R8#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

18.0.0.0/30 is subnetted, 1 subnets
C 18.1.1.0 is directly connected, Serial2/2
42.0.0.0/32 is subnetted, 1 subnets
B 42.42.42.42 [20/0] via 18.1.1.2, 00:13:03

 

This 42.42.42.42 is received as expected but Unable to ping.

2 Accepted Solutions

Accepted Solutions

M02@rt37
VIP
VIP

Hello @Ammartehsein 

Ping with a source. Specify source IP for you ping/icmp request. A routable source known on  the other end.

Best regards
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View solution in original post

you need in CE to advertise LO in both site 
and then use the LO as source of Ping 
OR 
in PE under bgp vrf you need to 
redistribute connect 

the issue is one of CE use prefix as source dont know by other CE

MHM

View solution in original post

4 Replies 4

M02@rt37
VIP
VIP

Hello @Ammartehsein 

Ping with a source. Specify source IP for you ping/icmp request. A routable source known on  the other end.

Best regards
.ı|ı.ı|ı. If This Helps, Please Rate .ı|ı.ı|ı.

you need in CE to advertise LO in both site 
and then use the LO as source of Ping 
OR 
in PE under bgp vrf you need to 
redistribute connect 

the issue is one of CE use prefix as source dont know by other CE

MHM

Ammartehsein
Level 1
Level 1

Oh, I see. It is working fine now when I advertise loopback and ping using loopback. Thanks, guys for your quick support

You're welcome @Ammartehsein 

Best regards
.ı|ı.ı|ı. If This Helps, Please Rate .ı|ı.ı|ı.