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L2TPv3 tunnel - one-way only

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SPfister at dps

Jul 1, 2008, 1:39 PM

Post #1 of 3 (332 views)
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L2TPv3 tunnel - one-way only

I've got an L2TPv3 tunnel set up between our central location and one of our remote sites. Everything looks OK, but data is only flowing one way (from the central side to the remote side, it looks like). Has anyone seen anything like this?

Thanks!

Steve Pfister
Technical Coordinator,
The Office of Information Technology
Dayton Public Schools
115 S. Ludlow St.
Dayton, OH 45402

Office (937) 542-3149
Cell (937) 673-6779
Direct Connect: 137*131747*8
Email spfister [at] dps

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rodunn at cisco

Jul 1, 2008, 1:54 PM

Post #2 of 3 (307 views)
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Re: L2TPv3 tunnel - one-way only [In reply to]

What boxes?

I saw this once with the 3845 (I think it was) where the LAN interface
was not going in to promiscuous mode to rx all mac frames.

Check the VC and see if you only see tx or rx counters and on which
box.

Also check 'sh controller' to see if there is a promiscuous mode in it.

Rodney

On Tue, Jul 01, 2008 at 04:39:44PM -0400, Steven Pfister wrote:
> I've got an L2TPv3 tunnel set up between our central location and one of our remote sites. Everything looks OK, but data is only flowing one way (from the central side to the remote side, it looks like). Has anyone seen anything like this?
>
> Thanks!
>
> Steve Pfister
> Technical Coordinator,
> The Office of Information Technology
> Dayton Public Schools
> 115 S. Ludlow St.
> Dayton, OH 45402
>
> Office (937) 542-3149
> Cell (937) 673-6779
> Direct Connect: 137*131747*8
> Email spfister [at] dps
>
>
> _______________________________________________
> cisco-nsp mailing list cisco-nsp [at] puck
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
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SPfister at dps

Jul 2, 2008, 8:20 AM

Post #3 of 3 (295 views)
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Re: L2TPv3 tunnel - one-way only [In reply to]

Here is the current config. I'm trying to gain access to vlan 77 on the remote side (10.77.0.0/16).

Thanks!

--Steve

central side:

l2tp-class l2-dyn
authentication
hostname ADM
password somepassword
cookie size 8
!
pseudowire-class pw-dynamic
encapsulation l2tpv3
protocol l2tpv3 l2-dyn
ip local interface Loopback0
!
interface Loopback0
ip address 192.168.7.1 255.255.255.255
!
interface FastEthernet0/0
no ip address
no ip redirects
no ip proxy-arp
ip pim sparse-mode
speed 100
full-duplex
no cdp enable
!
interface FastEthernet0/0.1
encapsulation dot1Q 1 native
ip address 192.168.9.1 255.255.255.0
no snmp trap link-status
no cdp enable
!
interface FastEthernet0/0.77
encapsulation dot1Q 77
no snmp trap link-status
no cdp enable
xconnect 192.168.7.77 77 pw-class pw-dynamic

-------------

remote side:

l2tp-class l2-dyn
authentication
hostname XYZ
password somepassword
cookie size 8
!
pseudowire-class pw-dynamic
encapsulation l2tpv3
protocol l2tpv3 l2-dyn
ip local interface Loopback0
!
interface Loopback0
ip address 192.168.7.77 255.255.255.255
!
interface FastEthernet0/0
no ip address
no ip redirects
no ip proxy-arp
ip pim sparse-mode
ip route-cache flow
speed 100
full-duplex
!
interface FastEthernet0/0.1
encapsulation dot1Q 1 native
ip address 10.77.0.1 255.255.0.0
no snmp trap link-status
no cdp enable
!
interface FastEthernet0/0.77
encapsulation dot1Q 77
no snmp trap link-status
no cdp enable
xconnect 192.168.7.1 77 pw-class pw-dynamic

Steve Pfister
Technical Coordinator,
The Office of Information Technology
Dayton Public Schools
115 S. Ludlow St.
Dayton, OH 45402

Office (937) 542-3149
Cell (937) 673-6779
Direct Connect: 137*131747*8
Email spfister [at] dps

_______________________________________________
cisco-nsp mailing list cisco-nsp [at] puck
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/

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