L2TPv3 Tunnel UP!!!!

[Prakash Kalsaria]

R1-----R7 =============== R9-----R5
enc PPP L2TPv3 enc FR


I have L2TPv3 Tunnel UP
I Have The Routes Of another CE
I have OSPF neighbor UP

BUT i am NOt able to PING the CE-CE routes

Here is mY config and OUtputs


R1{CE router} Config

ip vrf PPP-FR
rd 51:51


interface Loopback1
ip vrf forwarding PPP-FR
ip address 172.8.11.11 255.255.255.255


interface Serial0/0
ip vrf forwarding PPP-FR
ip address 172.8.15.1 255.255.255.0
encapsulation ppp
ip ospf network point-to-point

router ospf 200 vrf PPP-FR
log-adjacency-changes
network 172.8.11.11 0.0.0.0 area 0
network 172.8.15.1 0.0.0.0 area 0



R7 {PE} router

pseudowire-class L2TPv3
encapsulation l2tpv3
interworking ip
ip local interface Loopback0

interface Serial2/0
no ip address
encapsulation ppp
serial restart-delay 0
clockrate 252000
no cdp enable
no clns route-cache
xconnect 8.8.9.9 79 pw-class L2TPv3


R9 {PE config}

pseudowire-class L2TPv3
encapsulation l2tpv3
interworking ip
ip local interface Loopback0


interface Serial2/0
no ip address
encapsulation frame-relay
serial restart-delay 0
frame-relay interface-dlci 509 switched
no clns route-cach


connect PPP-FR Serial2/0 509 l2transport
xconnect 8.8.7.7 79 pw-class L2TPv3

R5 {CE router}

ip vrf PPP-FR
rd 51:51

interface Loopback1
ip vrf forwarding PPP-FR
ip address 172.8.55.55 255.255.255.255


interface Serial0/0
ip vrf forwarding PPP-FR
ip address 172.8.15.5 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-point
frame-relay map ip 172.8.15.9 509 broadcast


router ospf 200 vrf PPP-FR
log-adjacency-changes
capability vrf-lite
network 172.8.15.5 0.0.0.0 area 0
network 172.8.55.55 0.0.0.0 area 0

R5#sh ip route vrf PPP-FR

Routing Table: PPP-FR
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

172.8.0.0/16 is variably subnetted, 3 subnets, 2 masks
C 172.8.55.55/32 is directly connected, Loopback1
O 172.8.11.11/32 [110/65] via 172.8.15.1, 00:02:15, Serial0/0
C 172.8.15.0/24 is directly connected, Serial0/0


R9#sh l2tun tunnel
Tunnel Information Total tunnels 1 sessions 1

LocID RemID Remote Name State Remote Address Port Sessions
L2TPclass
31457 1967 R7 est 8.8.7.7 0
1




R9#show l2tun tunnel l2tp
Tunnel Information Total tunnels 1 sessions 1

LocID RemID Remote Name State Remote Address Port Sessions
L2TPclass
31457 1967 R7 est 8.8.7.7 0
1
R9#show l2tun tunnel a
Tunnel Information Total tunnels 1 sessions 1

Tunnel id 31457 is up, remote id is 1967, 1 active sessions
Tunnel state is established, time since change 00:07:12
Tunnel transport is IP (115)
Remote tunnel name is R7
Internet Address 8.8.7.7, port 0
Local tunnel name is R9
Internet Address 8.8.9.9, port 0
Tunnel domain is
VPDN group for tunnel is -
L2TP class for tunnel is
62 packets sent, 89 received
4952 bytes sent, 7608 received
Control Ns 11, Nr 9
Local RWS 10000 (default), Remote RWS 10000 (max)
Tunnel PMTU checking disabled
Retransmission time 1, max 1 seconds
Unsent queuesize 0, max 0
Resend queuesize 0, max 2
Total resends 0, ZLB ACKs sent 7
Current nosession queue check 0 of 5
Retransmit time distribution: 0 0 0 0 0 0 0 0 0
Sessions disconnected due to lack of resources 0
================================PPP -SIDE
=================================

R1#sh ip route vrf PPP-FR

Routing Table: PPP-FR
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

172.8.0.0/16 is variably subnetted, 3 subnets, 2 masks
O 172.8.55.55/32 [110/65] via 172.8.15.5, 00:02:36, Serial0/0
C 172.8.11.11/32 is directly connected, Loopback1
C 172.8.15.0/24 is directly connected, Serial0/0



R7#show l2tun tunnel a
Tunnel Information Total tunnels 1 sessions 1

Tunnel id 1967 is up, remote id is 31457, 1 active sessions
Tunnel state is established, time since change 00:07:49
Tunnel transport is IP (115)
Remote tunnel name is R9
Internet Address 8.8.9.9, port 0
Local tunnel name is R7
Internet Address 8.8.7.7, port 0
Tunnel domain is
VPDN group for tunnel is -
L2TP class for tunnel is l2tp_default_class
92 packets sent, 65 received
7848 bytes sent, 5192 received
Control Ns 9, Nr 11
Local RWS 10000 (default), Remote RWS 10000 (max)
Tunnel PMTU checking disabled
Retransmission time 1, max 1 seconds
Unsent queuesize 0, max 0
Resend queuesize 0, max 1
Total resends 0, ZLB ACKs sent 10
Current nosession queue check 0 of 5
Retransmit time distribution: 0 0 0 0 0 0 0 0 0
Sessions disconnected due to lack of resources 0



R7#sh l2tun tunnel
Tunnel Information Total tunnels 1 sessions 1

LocID RemID Remote Name State Remote Address Port Sessions
L2TPclass
1967 31457 R9 est 8.8.9.9 0 1
l2tp_default_cl

[akyccie]

This is a typical issue with L2TP, Try to remove the interface from VRF and
then see if you are able to ping

R1{CE router} Config

R7 {PE} router

R9 {PE config}

R5 {CE router}

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http://prakashkalsaria.wordpress.com

[Prakash Kalsaria]

well could be coz of dynamips i removed the config {pseudowire class}
and pasted that same back
and i was able to reach it
:)
IMHO, remember one thing if every troubleshooting doesn't work; the
last option could be to remove the config and paste

regrads;
prakash kalsaria
http://prakashkalsaria.wordpress.com