Broadband Tech → IPv6 > IAPrefix into radvd.conf and interface configuration

IAPrefix into radvd.conf and interface configuration

I'm working on my Debian router and I'm trying to figure out the best way to get an IAPrefix published by a DHCPv6 server into the interface configuration and radvd.conf. The best solution I can figure out is to write a script to parse the dhcp logs and insert the prefix into the LAN interface and radvd.conf file. While this approach would work, I feel it's a bit hacky. Any way to use the configuration of radvd or the interface settings to accomplish this for me?

Have you tried setting the prefix in radvd.conf to ::/64 ?

Thanks! That works beautifully for radvd. Still having trouble with the interface portion though.

What DHCPv6 client are you using? I'm using WIDE-DHCPv6 and it Just Works without anything special.

My dhcp6c.conf for requesting 2 /64's from Comcast:

interface vlan100 {
        send ia-pd 1;
        send ia-pd 2;
        send ia-na 3;
        send rapid-commit;
        request domain-name-servers;
        script "/usr/local/sbin/w-dhcp6c-state";
};
 
id-assoc pd 1 {
        prefix-interface vlan70 {
                sla-id 1;
                sla-len 0;
        };
};
 
id-assoc pd 2 {
        prefix-interface vlan9 {
                sla-id 2;
                sla-len 0;
        };
};
 
id-assoc na 3 { };
 

#!/bin/sh
 
echo $* >/tmp/w-dhcpc-out
env >>/tmp/w-dhcpc-out
 

$ cat /tmp/w-dhcpc-out 
 
REASON=NBI
PWD=/
new_domain_name_servers=2001:558:feed::2 2001:558:feed::1 
SHLVL=1
_=/bin/env
 

For simplicity reason, I'm avoiding WIDE-DHCPv6 D:

I'm currently just using the dhcp client and config that comes with Debian.

After many, many hours of fighting the ISC client, recompiling, patching, trying different versions, etc I gave up and installed WIDE. It was quick and painless to install from source compared to the hell I went through fighting that other one.

/M

Sounds good. I'll give it a try and let you know how it goes. Thanks again.

Yeah but requesting a /60 didn't work but requesting 2 /64's did, and as it works I never bothered to go back and check to see if requesting a /60 actually works yet. Even if it does, who knows when another problem will pop up and get it shut back off again.

/M