Start playing with L2VPN
02/09/2012 22:49
First config - connected 2 sites over public backbone using L2TPv3. Pings CE1 to CE2 successful.
Config snippet
pseudowire-class TUN1
encapsulation l2tpv3
ip local interface Loopback0
!
interface Serial1/0
ip address 200.100.100.2 255.255.255.252
!
interface FastEthernet2/0
no ip address
duplex auto
speed auto
no cdp enable
xconnect 10.10.10.2 100 pw-class TUN1 ; VCID must be same on both ends otherwise we cant establish a session over a tunnel
PE2(config)#int fa 2/0
PE2(config-if)#no xconnect 10.10.10.1 100 pw-class TUN1
PE2(config-if)#xconnect 10.10.10.1 200 pw-class TUN1
From PE1
L2TP Tunnel Information Total tunnels 1 sessions 0
LocID RemID Remote Name State Remote Address Port Sessions L2TP Class/VPDN Group
50901 21623 PE2 nosess 10.10.10.2 0 0 l2tp_default_cl
PE1#sh L2tun session
%No active L2F tunnels
L2TP Session Information Total tunnels 1 sessions 0
%No active PPTP tunnels
PE2(config-if)#xconnect 10.10.10.1 100 pw-class TUN1
PE1#sh L2tun tunnel
%No active L2F tunnels
L2TP Tunnel Information Total tunnels 1 sessions 1
LocID RemID Remote Name State Remote Address Port Sessions L2TP Class/
VPDN Group
327 39133 PE2 est 10.10.10.2 0 1 l2tp_default_cl
%No active PPTP tunnels
PE1#sh L2tun session
%No active L2F tunnels
L2TP Session Information Total tunnels 1 sessions 1
LocID RemID TunID Username, Intf/ State Last Chg Uniq ID
Vcid, Circuit
5248 63294 327 100, Fa2/0 est 00:00:13 10
%No active PPTP tunnels
CE1#ping 1.1.1.2 ; ping to CE2.FE0/2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 20/54/88 ms
CE1#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 1.1.1.1 - ca1c.04d4.001c ARPA FastEthernet1/0
Internet 1.1.1.2 10 ca1d.1344.001c ARPA FastEthernet1/0