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subnet ipv6 autoconfiguration as dhcpd in ipv4
![[de]](/s/countries/de.gif) Shadow Hawkins on Wednesday, 08 September 2004 10:06:03
Hello,
I have a freebsd 5.2.1 ipv6 router which is connected to the ipv6 world
using a tunnel. Which works well.
Now i have a routed ipv6 subnet on my lan. Which also works if i uses
static address configuration.
But i want ipv6 stateless autoconfiguration so that my xp grabs the
right ipv6 from the lan. But this doesn't works for me. I run the
rtadvd server on my freebsd with that config:
sis0:addrs#1:addr="2001:6f8:XXXX::":prefixlen#48:tc=ether:
and the xp client is able to ping 2001:6f8:XXXX::1 which is the freebsd
box. But if i try to reach an external ipv6 it didn't work, the cause
is that my xp has only the predefined ipv6 addresses but not an
offical subnet address.
How could i setup my freebsd to give my xp an ipv6 address from my
subnet.
thanks in advance
meno
subnet ipv6 autoconfiguration as dhcpd in ipv4
First off, DHCP == statefull (state kept by the dhcp server and client) autoconfiguration, while using RA's to autoconfigure is stateless.
The configuration should be:
sis0:addrs#1:addr="2001:6f8:xXXX::":prefixlen#64:tc=ether:
A /64 and not a /48 (65535 /64's ;) )
What you then should check:
- if rtadvd didn't stop/abort, can happen, check the logs
- routes on the BSD box, if they are correctly pointing to the correct interfaces
- if the BSD box itself
- forwarding is properly activated on the BSD box
- tcpdump if the RA's actually get received by the XP box.
Then it should work ;)
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![[ch]](/s/countries/ch.gif)
on Wednesday, 08 September 2004 11:44:01
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