dhcpcd-discuss

Hi Andrey

On 19/09/2019 20:32, andrey@xxxxxxxxxxxx wrote:
> Hi Roy,
>
> I'm using dhcpcd 7.2.2 to delegate an IPv6 prefix for my local LAN.
>
> It's receiving the /62 prefix from the upstream router. The IPv6 address 
> and prefix are dynamic and changes at least once a day. Dhcpcd gets 
> RECONFIGURE6 message from the upstream router and should delegate it to 
> 4 local subnets; configuration file contains following:
>
> ia_pd 0 lan33/0/64 lan34/1/64 lan36/2/64 dmz0/3/64
>
> I expect immediate delegation to all 4 subnets but it delegates it 
> one-by-one every 30 minutes. How can I fix it?

Well, firstly you cannot use an SLA of 0 with other SLA's.
SLA 0 means use the route as it comes - ie you're delegated a /64 so it 
delegates the whole /64 to another interface.
Secondly, you're getting a /62 - which means you only get two bits to 
spare, so you're limited to two /64's but you've configued 4.

You're using an old version, dhcpcd-8.0.6 is the latest.
Saying that I don't recall changing the delegation code much but I'll 
check if I need to put some extra hardening in so you can't delegate 
past your delegation.

Roy