Manual

Layer 2 Tunnel Protocol Version 3
Configuration Examples for Layer 2 Tunnel Protocol Version 3
66
Cisco IOS Releases 12.0(29)S and 12.2(25)S
Configuring L2TPv3 Control Connection Authentication Examples
The following example configures CHAP-style authentication of the L2TPv3 control channel:
l2tp-class class1
authentication
password cisco
The following example configures control connection authentication using the L2TPv3 Control Channel
Hashing feature:
l2tp-class class1
digest secret cisco hash sha
hidden
The following example configures control connection integrity checking and disables validation of the
message digest using the L2TPv3 Control Message Hashing feature:
l2tp-class class1
digest hash sha
no digest check
The following example disables validation of the message digest using the L2TPv3 Control Message
Hashing feature:
l2tp-class class1
no digest check
Verifying an L2TPv3 Session Example
To display detailed information about current L2TPv3 sessions on a router, use the show l2tun session
all command:
Router# show l2tunnel session all
Session Information Total tunnels 0 sessions 1
Session id 111 is up, tunnel id 0
Call serial number is 0
Remote tunnel name is
Internet address is 10.0.0.1
Session is manually signalled
Session state is established, time since change 00:06:05
0 Packets sent, 0 received
0 Bytes sent, 0 received
Receive packets dropped:
out-of-order: 0
total: 0
Send packets dropped:
exceeded session MTU: 0
total: 0
Session vcid is 123
Session Layer 2 circuit, type is ATM VPC CELL, name is ATM3/0/0:1000007
Circuit state is UP
Remote session id is 222, remote tunnel id 0
DF bit off, ToS reflect disabled, ToS value 0, TTL value 255
Session cookie information:
local cookie, size 8 bytes, value 00 00 00 00 00 00 00 64
remote cookie, size 8 bytes, value 00 00 00 00 00 00 00 C8
SSS switching enabled
Sequencing is off