Hi all,
For the past 2 years I am using Sunrise Fiber connected to own router. Configured with DHCP and DHCPv6 it was working with IPv4 and IPv6 stack natively.
Something happened on 20/May between 3:30 and 4pm. DHCPv6 stopped to hand out the address and prefix.
On the tcpdump I can see ICMP6 RAs are still being sent by Sunrise infrastructure, e.g.
15:58:36.325468 IP6 fe80::200:5eff:fe00:1310 > ff02::1: ICMP6, router advertisement, length 32
but infra is not responding to DHCP6 SOLICIT packets I send.
Anyone any ideas if there was a recent change in configuration? As a fallback I have confiured 6RD tunnel using the well-known
proto '6rd'
peeraddr '212.161.209.1'
ip6prefix '2001:1710::'
ip6prefixlen '28'
which works and gives me /60 delegated prefix, but the native IPv6 stack performs way better. The cap on the IPv6 via 6rd is 1.2 Gbps on the uplink and 800 Mbps on downlink, whereas on the native IPv6 I was getting line rate.
Of course, I know it’s officially not the configuration people are offered (it’s either CG-NAT + IPv6 or IPv4-only) but it used to work.
Cheers
