Manual

Layer 2 Tunnel Protocol Version 3
How to Configure Layer 2 Tunnel Protocol Version 3
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Cisco IOS Releases 12.0(29)S and 12.2(25)S
To remove the command, you must delete the pseudowire with the no pseudowire-class command. To
change the type of encapsulation, remove the pseudowire with the no pseudowire-class command and
re-establish the pseudowire and specify the new encapsulation type.
SUMMARY STEPS
1. enable
2. configure terminal
3. pseudowire-class [pw-class-name]
4. encapsulation l2tpv3
5. protocol {l2tpv3 | none} [l2tp-class-name]
6. ip local interface interface-name
7. ip pmtu
8. ip tos {value value | reflect}
9. ip dfbit set
10. ip ttl value
11. ip protocol {l2tp | uti | protocol-number}
12. sequencing {transmit | receive | both}
DETAILED STEPS
Command or Action Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
• Enter your password if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
pseudowire-class [pw-class-name]
Example:
Router(config)# pseudowire-class etherpw
Enters pseudowire class configuration mode and optionally
specifies the name of the L2TP pseudowire class.
Step 4
encapsulation l2tpv3
Example:
Router(config-pw)# encapsulation l2tpv3
Specifies that L2TPv3 is used as the data encapsulation
method to tunnel IP traffic.