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New Member

FWSM and IPv6 Network configuration

I would like to seek advices regarding to Cisco Firewall Module [WS-SVC-FWM-1] and IPv6 network.

At this moment, our server farm is capable to support IPv4/IPv6 network, and our servers are starting to use both to serve our end-users.

My questions are:

1. I enabled IPv6 on Cisco Firewall Module [WS-SVC-FWM-1], especially configured 'ipv6 address autoconfig' in interface level

2. in CLI mode, I can control IPv4 rule and IPv6 rule, But in ASDM I can't control IPv4 rule

(can't edit rule and apply rule)

is it bug ?

3. in FWSM redundancy, IPv4 no problem (can configuring standby ip) but how can I config standby ip in IPv6 address


show version

FWSM Firewall Version 4.0(6)

Device Manager Version 6.1(4)F

Compiled on Fri 17-Apr-09 15:33 by fwsmbld

FWSM up 20 days 15 hours

Hardware: WS-SVC-FWM-1, 1024 MB RAM, CPU Pentium III 1000 MHz

Flash TOSHIBA THNCF128MBA @ 0xc321, 20MB


interface Vlan30

nameif outside

security-level 0

ip address standby

ipv6 address 2001:1:1:1::1/128

ipv6 address autoconfig

ipv6 enable


New Member

Re: FWSM and IPv6 Network configuration

Failover does not support IPv6. The ipv6 address command does not support setting standby addresses for failover configurations. The failover interface ip command does not support using IPv6 addresses on the failover and Stateful Failover interfaces