Cisco 1801W, v6 on wireless, bvi argh.

[Andy Davidson]

Hi,

Please help me get ipv6 working on my Cisco 1801W test router.  I have working v6 on my wired vlan, but not wireless.

Cisco Bug CSCej50923
Symptom : BVI Routing does not work for IPV6 addressing.

This bug is marked 'fixed' as at February 2010, providing I use one of the fixed versions of IOS.  I installed 15.1(1)XB in February on my Cisco 1801, which is one of the ones which has this bug fixed, however I could not route IPv6 over the bridged/BVI interface.  I lost interest for a little while, earlier I installed 15.1(1)T, but v6 still does not work over the v6 interface.

By 'work', I mean pass v6 frames, act as a gateway, do ND, do router advertisement.

If the bug *is* fixed, then is it my config which is wrong, surely.. This is what I am doing - if someone has suggestions, I am all ears.  There are two attached methods :


=========================================================
Method 1 - BVI

ipv6 unicast-routing
ipv6 cef
ipv6 multicast-routing
!
bridge irb
!
interface Dot11Radio0
 description Wireless Network / vlan 2
 no ip address
 no ip redirects
 ip local-proxy-arp
 ip virtual-reassembly
 ip tcp adjust-mss 1400
 !
 encryption mode ciphers tkip 
 !
 encryption vlan 2 mode ciphers tkip 
 !
 ssid rustykettle
 !
 speed basic-1.0 basic-2.0 basic-5.5 basic-6.0 basic-9.0 basic-11.0 basic-12.0 basic-18.0 basic-24.0 basic-36.0 basic-48.0 basic-54.0
 channel 2442
 station-role root
 world-mode dot11d country US indoor
 hold-queue 100 out
!
interface Dot11Radio0.2
 encapsulation dot1Q 2
 no ip redirects
 ip local-proxy-arp
 ip tcp adjust-mss 1400
 no cdp enable
 bridge-group 1
 bridge-group 1 subscriber-loop-control
 bridge-group 1 spanning-disabled
 bridge-group 1 block-unknown-source
 no bridge-group 1 source-learning
 no bridge-group 1 unicast-flooding
!
interface Vlan2
 description Wireless network VLAN
 no ip address
 ip pim sparse-dense-mode
 ip virtual-reassembly
 ip tcp adjust-mss 1400
 ip ospf 10 area 0
 ipv6 enable
 bridge-group 1
 bridge-group 1 subscriber-loop-control
 bridge-group 1 spanning-disabled
!
interface BVI1
 ip vrf forwarding vrf_Tunnel
 ip address 91.194.69.65 255.255.255.192
 ip nat inside
 ip virtual-reassembly
 ip tcp adjust-mss 1400
 ipv6 address 2A02:C30:100:2::1/64
 ipv6 enable


Issue :  connected ipv6 route for 2a02:c30:100:2::/64 is not installed in the routing table.  devices on this lan do not discover the router via RA, router does not learn any neighbors in this subnet.


=========================================================

Method 2: Address on radio interface

As above, but ..

no int bvi1
interface Dot11Radio0.2
 no bridge-group 1
 ip address 91.194.69.65 255.255.255.192
 ip vrf forwarding vrf_Tunnel
 ipv6 address 2A02:C30:100:2::1/64
 ipv6 enable


Issue :  IPv4 configuration is accepted, and routes properly.  ipv6 config is not 'taken' by the router - it barfs at the 'v' on each of the ipv6 lines..

=========================================================

Any ideas ?

Kind regards, thanks and adoration in advance,
Andy

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