[c-nsp] Need help with L2TPv3

Robert Blayzor rblayzor.bulk at inoc.net
Thu May 22 13:41:41 EDT 2008


On May 22, 2008, at 1:25 PM, Steven Pfister wrote:
> I know, but the image I'm using (12.3(14)T7) does have all the  
> commands, and the tunnel does come up very briefly.



Well then your config should look something like (assuming a Ethernet  
to Ethernet L2 vpn):

Router A:

l2tp-class foo
authentication
password bar

pseudowire-class test_l2tp
encapsulation l2tpv3
protocol l2tpv3 foo
ip local interface ...


interface FastEthernet0/1
xconnect 1.1.1.1 555 pw-class test_l2tp


Router B:

l2tp-class foo
authentication
password bar

pseudowire-class test_l2tp
encapsulation l2tpv3
protocol l2tpv3 foo
ip local interface ...


interface FastEthernet0/1
xconnect 2.2.2.2 555 pw-class test_l2tp



If the tunnel comes up and you can pass traffic, then it goes down,  
that's not authentication.  If it were an authentication issue, your  
tunnel should not be coming up at all.

-- 
Robert Blayzor, BOFH
INOC, LLC
rblayzor at inoc.net
http://www.inoc.net/~rblayzor/





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