Revision as of 11:50, 1 March 2024 (view source) Adsb (talk \| contribs) (Fixed!) ← Older edit		Revision as of 13:00, 1 March 2024 (view source) Adsb (talk \| contribs) m (Tidy up, not assuming /64) Newer edit →
There's a gotcha for users who have multiple /64 blocks routed to them by AAISP. OpenWrt uses Policy-Based Routing (PBR) which allows routing to be configured according to multiple rules, not just be destination address. If DHCPv6 is used to request Prefix Delegation (PD), AAISP will reply with one ~~/64~~ block. OpenWrt uses this to set the LAN address and netmask, and then enables routing from '''just this block''' from LAN to WAN. ~~Any~~If you have multiple /64 blocks, any other /64 blocks routed to you won't be able to send packets to the Internet. To quote from [https://openwrt.org/docs/guide-user/network/routing/basics OpenWrt Wiki - Routing basics] ''Note that by default OpenWrt announces IPv6 default route only for GUA and applies source filter for IPv6 that allows routing only for prefixes delegated from the upstream router.'' And for ''lan'': IPv6: 2001:8b0:~~9d7~~xyz:4520:xxxx:xxxx:xxxx:xxxx/64 It's the ''ip6assign'' option in the config for the lan which determines that the lan uses a /64. Now I see: # ip -f inet6 route ... default from 2001:8b0:xyz:4520::/60 via fe80::9e89:1eff:fe2e:0 dev pppoe-wan metric 512 ... = Enabling IPv6 in the local network =

OpenWRT routers (view source)