Configuring L2TPv3 on Cisco Devices

Hi all

I'm trying to configure an L2TPv3 tunnel on two Cisco 7200 VXR running IOS 12.0(31)S. My goal is to tunnel ethernet frames over an IP cloud using the xconnect service.

However I get strange error messages telling me some configs being incomplete. Even if I type in the configuration example Cisco provides I don't get the whole thing running.

This is the Cisco example:

******************** l2tp-class l2tp-defaults retransmit initial retries 30 cookie-size 8

pseudowire-class ether-pw encapsulation l2tpv3 protocol none ip local interface Loopback0

************************** l2tp-class l2tp-defaults retransmit initial retries 30 cookie size 8

pseudowire-class ether-pw encapsulation l2tpv3 protocol none ip local interface Loopback0

Left_Router(config)#int f1/1 Left_Router(config-if)#xc 192.168.1.2 123 enc l2tpv3 man pw-class ether-pw Left_Router(config-if-xconn)#l2tp id 1 2 Left_Router(config-if-xconn)#l2tp cookie local 4 54321 Left_Router(config-if-xconn)#l2 coo rem 4 12345 Left_Router(config-if-xconn)#l2tp hello l2tp-defaults Left_Router(config-if-xconn)#exit

This is what the router tells me on exit:

***************************************** Xconnect configuration on this circuit is incomplete Left_Router(config-if)#

And this is what's in the config afterwards: (only interface part)

******************************************** interface FastEthernet1/1 ip address 192.168.100.1 255.255.255.0 no ip directed-broadcast duplex full speed 100 xconnect 192.168.1.2 123 encapsulation l2tpv3 manual pw-class ether-pw l2tp id 1 2 l2tp cookie local 4 54321 l2tp cookie remote 4 12345 l2tp hello l2tp-defaults match protocol ipv6

>> Does anybody know what I'm doing wrong and where the hell the

router takes the IPv6 command and if it's even possible to run L2TPv3 over IP? Keep in mind that Cisco is providing L2TPv3 quite a long time, the RFC 3931 exists since March 2005.

Thanks a lot in advance for your help!!

Gregor