BGP MPLS PING ISSUE

[Ammartehsein]

CUSTOMER SITE NOT ABLE TO PING SITE 2, even routes are advertised properly via mpls bgp. I am pinging using loopback 10.10.10.1 as source from site 1.as you see below 10.10.10.0 network is received on other end

PE1 vrd routing table:

PE1#sh ip route vrf Riyadh-branch

Routing Table: Riyadh-branch
Codes: L - local, 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, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override

Gateway of last resort is not set

1.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 1.1.1.0/30 is directly connected, Ethernet1/0
L 1.1.1.2/32 is directly connected, Ethernet1/0
2.0.0.0/30 is subnetted, 1 subnets
B 2.2.2.0 [200/0] via 90.90.90.2, 01:14:58
10.0.0.0/24 is subnetted, 1 subnets
B 10.10.10.0 [20/0] via 1.1.1.1, 02:10:24
20.0.0.0/24 is subnetted, 1 subnets
B 20.20.20.0 [200/0] via 90.90.90.2, 01:14:58

PE-2 vrf routing table:

PE2#sh ip route vrf
PE2#sh ip route vrf Jeddah-branch

Routing Table: Jeddah-branch
Codes: L - local, 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, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override

Gateway of last resort is not set

1.0.0.0/30 is subnetted, 1 subnets
B 1.1.1.0 [200/0] via 70.70.70.1, 00:56:50
2.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 2.2.2.0/30 is directly connected, Ethernet1/0
L 2.2.2.2/32 is directly connected, Ethernet1/0
10.0.0.0/24 is subnetted, 1 subnets
B 10.10.10.0 [200/0] via 70.70.70.1, 00:56:50
20.0.0.0/24 is subnetted, 1 subnets
B 20.20.20.0 [20/0] via 2.2.2.1, 00:56:50

Cust site-1 routing table:

Cust-1#sh ip route
Codes: L - local, 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, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override

Gateway of last resort is not set

1.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 1.1.1.0/30 is directly connected, Ethernet1/0
L 1.1.1.1/32 is directly connected, Ethernet1/0
2.0.0.0/30 is subnetted, 1 subnets
B 2.2.2.0 [20/0] via 1.1.1.2, 00:54:00
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
B 10.10.10.0/24 [200/0] via 0.0.0.0, 01:41:56, Null0
C 10.10.10.1/32 is directly connected, Loopback1
20.0.0.0/24 is subnetted, 1 subnets
B 20.20.20.0 [20/0] via 1.1.1.2, 00:54:00

Cust site-2 routing table:

Cust-2#sh ip route
Codes: L - local, 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, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override

Gateway of last resort is not set

1.0.0.0/30 is subnetted, 1 subnets
B 1.1.1.0 [20/0] via 2.2.2.2, 00:54:13
2.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 2.2.2.0/30 is directly connected, Ethernet1/0
L 2.2.2.1/32 is directly connected, Ethernet1/0
10.0.0.0/24 is subnetted, 1 subnets
B 10.10.10.0 [20/0] via 2.2.2.2, 00:54:13
20.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
B 20.20.20.0/24 [200/0] via 0.0.0.0, 01:44:39, Null0
C 20.20.20.1/32 is directly connected, Loopback1

[Flavio Miranda]

@Ammartehsein 

 what do you have netween PE-1 and PE-2?

 PE-1 receive the 20.20.20.0 on the interface 90.90.90.2

PE-2 receive 10.10.10.0 on interface 70.70.70.1

Traceroute from Site 1 to Site 2 or vice-versa show what?

[Ammartehsein]

I have attached network diagram. It will clarify a bit more.

[MHM Cisco World]

What protocol use between PE and CE 

Under this protocol ""redistrubte connect""

MHM

[Ammartehsein]

BGP is used. 

[MHM Cisco World]

No problem 

Under address family ipv4 vrf xxx

Redistrubte connect 

MHM

[Ammartehsein]

added this cmd but still same not pinging

[MHM Cisco World]

It is lab so mpls label assign and bgp advertise prefix need time.

For fast wr config 

Trun off the lab and trun on again and check ping 

MHM

[Ammartehsein]

No routes are already there The only issue is that it is not pinging

[MHM Cisco World]

Mpls label this issue.

Only close and open lab and check' sure after wr

MHM

[Harold Ritter]

Hi @Ammartehsein ,

Could you please attach PE1 and PE2 configuration.

Regards,

[Ammartehsein]

PE1#sh run
Building configuration...

Current configuration : 1984 bytes
!
! Last configuration change at 15:43:20 UTC Sat Nov 16 2024
upgrade fpd auto
version 15.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname PE1
!
boot-start-marker
boot-end-marker
!
aqm-register-fnf
!
vrf definition Riyadh-branch
rd 200:1
route-target export 300:1
route-target import 300:1
!
address-family ipv4
exit-address-family
!
!
no aaa new-model
!
!
!
!
!
!
ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
redundancy
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback20
ip address 30.30.30.30 255.255.255.255
!
interface FastEthernet0/0
no ip address
shutdown
duplex half
!
interface Ethernet1/0
vrf forwarding Riyadh-branch
ip address 1.1.1.2 255.255.255.252
duplex half
!
interface Ethernet1/1
ip address 70.70.70.1 255.255.255.252
ip ospf 1 area 0
duplex half
mpls ip
!
interface Ethernet1/2
no ip address
shutdown
duplex half
!
interface Ethernet1/3
no ip address
shutdown
duplex half
!
interface FastEthernet2/0
no ip address
shutdown
duplex half
!
router ospf 1
!
router bgp 200
bgp log-neighbor-changes
network 70.70.70.0 mask 255.255.255.252
neighbor 90.90.90.2 remote-as 200
neighbor 90.90.90.2 soft-reconfiguration inbound
!
address-family vpnv4
neighbor 90.90.90.2 activate
neighbor 90.90.90.2 send-community extended
exit-address-family
!
address-family ipv4 vrf Riyadh-branch
redistribute connected
neighbor 1.1.1.1 remote-as 100
neighbor 1.1.1.1 activate
neighbor 1.1.1.1 soft-reconfiguration inbound
exit-address-family
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
!
!
!
control-plane
!
!
mgcp behavior rsip-range tgcp-only
mgcp behavior comedia-role none
mgcp behavior comedia-check-media-src disable
mgcp behavior comedia-sdp-force disable
!
mgcp profile default
!
!
!
gatekeeper
shutdown
!
!
line con 0
stopbits 1
line aux 0
stopbits 1
line vty 0 4
login
transport input all
!
!
end

PE2#sh run
Building configuration...

Current configuration : 1847 bytes
!
! Last configuration change at 15:22:10 UTC Sat Nov 16 2024
upgrade fpd auto
version 15.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname PE2
!
boot-start-marker
boot-end-marker
!
aqm-register-fnf
!
vrf definition Jeddah-branch
rd 300:1
route-target export 300:1
route-target import 300:1
!
address-family ipv4
exit-address-family
!
!
no aaa new-model
!
!
!
!
!
!
ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
redundancy
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
no ip address
shutdown
duplex half
!
interface Ethernet1/0
vrf forwarding Jeddah-branch
ip address 2.2.2.2 255.255.255.252
duplex half
!
interface Ethernet1/1
ip address 90.90.90.2 255.255.255.252
ip ospf 1 area 0
duplex half
mpls ip
!
interface Ethernet1/2
no ip address
shutdown
duplex half
!
interface Ethernet1/3
no ip address
shutdown
duplex half
!
interface FastEthernet2/0
no ip address
shutdown
duplex half
!
router ospf 1
!
router bgp 200
bgp log-neighbor-changes
network 90.90.90.0 mask 255.255.255.252
redistribute connected
neighbor 70.70.70.1 remote-as 200
!
address-family vpnv4
neighbor 70.70.70.1 activate
neighbor 70.70.70.1 send-community extended
exit-address-family
!
address-family ipv4 vrf Jeddah-branch
redistribute connected
neighbor 2.2.2.1 remote-as 100
neighbor 2.2.2.1 activate
exit-address-family
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
!
!
!
control-plane
!
!
mgcp behavior rsip-range tgcp-only
mgcp behavior comedia-role none
mgcp behavior comedia-check-media-src disable
mgcp behavior comedia-sdp-force disable
!
mgcp profile default
!
!
!
gatekeeper
shutdown
!
!
line con 0
stopbits 1
line aux 0
stopbits 1
line vty 0 4
login
transport input all
!
!
end

[MHM Cisco World]

Ohh ok

You use same as in same site 

Then you need 

Allowas-in or as override 

https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/112236-allowas-in-bgp-config-example.html

MHM

[MHM Cisco World]

Still you need to close and then open lab for mpls label.

MHM

[Ammartehsein]

No, I already use this cmd and I am reacving routes. I closed lab and run again as you said but still same