Am 11.12.2009 um 07:51 schrieb Chris Cowart: > Bruce Cran wrote: >> I have a router configured using if_bridge with a 4-port NIC that's >> serving addresses over DHCP. I'd like to add in either rtadvd or >> DHCPv6, but neither work because the bridge interface doesn't have an >> IPv6 link-local address. Is there a way around this, or is it not >> possible to serve IPv6 addresses over if_bridge interfaces? > > It's totally doable; you just have to assigned a link-local address to > the bridge. There are some reasons why one isn't defined by default, > which somebody more knowledgeable about the challenges in the > implementation can highlight. > > Here's my configuration from rc.conf: > > ipv6_ifconfig_bridge0="2001:470:8337:10::1/64" > ipv6_ifconfig_bridge0_alias0="fe80::2%bridge0 prefixlen 64" > > Once you're doing that, rtadvd will start doing the right thing.
I've just stumbled over this the first time. I thought that best practice nowadays was to use the bridge interface for host communications, and leaving the physical interfaces unconfigured, so I'm a bit confused why if_bridge would not allow the auto-assignment of a link-local address. If you have two or more bridged interfaces now, and you enable automatic assignment of link-local addresses, you already have multiple link-locals this way; having the bridge have one as well wouldn't make things worse (I think). Slightly confused, Stefan -- Stefan Bethke <s...@lassitu.de> Fon +49 151 14070811 _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
