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L2TP (LAC can't establish L2TP with LNS)

Hello,

I am using cisco7200 as LAC and th following is configured in rouer:-

aaa new-model

!

!

aaa authentication login default local

aaa authentication ppp default local

!

vpdn enable

!

vpdn-group 1

request-dialin

protocol l2tp

domain iwan

initiate-to ip <lo of the LNS>

source-ip <lo of LAC>

local name IWAN-FAH-TEST

l2tp tunnel password cisco

!

!

username cisco password cisco

!

!

interface Loopback0

ip address <lo of the LAC> 255.255.255.255

And ERX is used as LNS and following is the configuration:-

profile "Cust-LNS"

ip sa-validate

ppp authentication virtual-router default pap

pppoe sessions 1

!

profile "PPPOE-Profile"

ip unnumbered loopback 0

ppp authentication pap

pppoe remote-circuit-id

vlan auto-configure pppoe

!

profile "ppp-profile"

ip unnumbered loopback 0

ip sa-validate

ppp authentication pap

!

virtual-router default

!

l2tp destination profile "Cust-LNS" virtual-router default ip address <LAC lo>

remote host "IWAN-FAH-TEST"

tunnel password cisco

profile "Cust-LNS"

local ip address <LNS lo>

!

radius authentication server <RADIUS IP>

udp-port <port>

key <key>

!

radius accounting server <RADIUS IP>

udp-port <port>

key <key>

the issue now is the L2TP tunnel is not established and nother is coming from the debug!

If I need to establish this tunnel from fa0/0 in 7200 and ERX, is there is any thing need to be configured in interface?

If there is any think missing in the above configuration?

1 REPLY
New Member

Re: L2TP (LAC can't establish L2TP with LNS)

cant really tell what your exactly trying to do from the configuration but as far as i can tell your missing the "virtual-template-number" under "vpdn-group 1" also u might want to check the radius server to see if it is excepting or rejecting pppoe request to the LNS. also try removing the "local name" option.

Regards,

Steve K

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