GUI allows me to add an IPv6 alias (Firewall->Virtual IPs->IP Alias) but it doesn't take effect. No entry shows up in ifconfig. I was able to add an IPv4 alias fine.
I'm just starting to play with my ISP's 6rd implementation so I just upgraded to "2.1-BETA0 (i386) built on Fri Jun 8 21:09:09 EDT 2012" earlier today to solve the address family bug with changing the Monitor IP. The is the first time I'm trying to use IPv6 aliases in my config.
I briefly searched and didn't see anyone else reporting this issue before so I'm not sure if it's a new bug - or perhaps I'm overlooking something basic?
Never touched that part. Add a redmine ticket for it. i hope i can get to it next week. Might be small. Don't know.