06-13-2008 05:33 AM - edited 03-03-2019 10:20 PM
I've got a project I'm trying to use an l2tpv3 tunnel for. The tunnel seems to establish just fine, but it doesn't seem to do quite what I expected it to do. I'm trying to access vlans on a remote site that's connected via ATM. The remote side is connected by a 3640 router, plus a 8510 switch. On the local side, I've got another 3640, plus a 3500 switch.
As a possible clue, doing a 'show vlans' shows many packets output, but only a few input on the local side. On the remote side, the counts are zero in and out.
Here is a piece of the config on both sides. There is a vlan 77 on the network connected to f0/0 on the remote side that I'd like to be able to assign to the network connected to f0/0 on the local side.
Thanks!
--Steve
===========
remote side
===========
l2tp-class l2-dyn
hostname ABC
password <password>
cookie size 8
!
pseudowire-class pw-dynamic
encapsulation l2tpv3
protocol l2tpv3 l2-dyn
ip local interface FastEthernet0/0
!
interface FastEthernet0/0
ip address 10.77.0.1 255.255.0.0
no ip redirects
no ip proxy-arp
ip pim sparse-mode
ip route-cache flow
speed 100
full-duplex
!
interface FastEthernet0/0.77
encapsulation dot1Q 77
no snmp trap link-status
no cdp enable
xconnect 10.52.0.10 77 pw-class pw-dynamic
!
interface ATM1/0.2 multipoint
bandwidth 2284
ip address 10.99.60.77 255.255.255.0
ip pim sparse-mode
no ip mroute-cache
pvc data 0/277
protocol ip 10.99.60.1 broadcast
ubr 2284
broadcast
encapsulation aal5snap
!
!
==========
local side
==========
l2tp-class l2-dyn
hostname ADM
password <password>
cookie size 8
!
pseudowire-class pw-dynamic
encapsulation l2tpv3
protocol l2tpv3 l2-dyn
ip local interface FastEthernet0/0
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
!
interface FastEthernet0/0.77
encapsulation dot1Q 77
no snmp trap link-status
no cdp enable
xconnect 10.77.0.1 77 pw-class pw-dynamic
!
interface FastEthernet2/0
no ip address
no ip redirects
no ip proxy-arp
ip pim sparse-mode
duplex auto
speed auto
!
interface FastEthernet2/0.52
encapsulation dot1Q 52 native
ip address 10.52.0.10 255.255.0.0
no snmp trap link-status
!
06-13-2008 10:57 AM
Hello,
Can you post the output of "show l2tun session all"
06-15-2008 01:11 AM
Hello Steve,
first of all I would suggest you to move the L3 config to a subinterface instead of using the main physical interface at the remote site, just to be sure on the remote-site that different 802.1Q tags are used for frames of the vlan 77 and for frames of the routed vlan used as endpoint of the l2tvp3 trunk.
Have you got a trunk link to a switch port on the remote site ?
What is the native vlan on that trunk ?
If the native vlan is 77 on the switch side or the switch port is in access mode, you cannot see frames on vlan 77 on the router.
I would suggest to use loopback addresses as endpoints of the tunnel.
If the tunnel comes up but no traffic is flowing you may face a forwarding problem so leave the main interface not configured
hope to help
Giuseppe
06-15-2008 05:50 AM
On the local side under the pseudowire you have:
ip local interface FastEthernet0/0
but your FastEthernet0/0 has no IP address.
I think you want the pseudowire to instead have an IP local of FastEthernet2/0.52
Better yet, tie the tunnel to loopback interfaces.
06-05-2010 11:53 AM
SP,
Whatever happened with this?
I don't see to much information about L2TPv3.
I am currently studying this ----
Hope to hear from you.
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