Hi, I'm testing a DNS server in a rootless container using pasta, and I have seen that the IPv6 UDP packets are not reaching the service: $ dig www.google.com @fddc:f797:78ef:70::5 +short ;; communications error to fddc:f797:78ef:70::5#53: timed out ;; communications error to fddc:f797:78ef:70::5#53: timed out ;; communications error to fddc:f797:78ef:70::5#53: timed out ; <<>> DiG 9.18.15 <<>> www.google.com @fddc:f797:78ef:70::5 +short ;; global options: +cmd ;; no servers could be reached TCP over IPv6 and UDP, TCP over IPv4 works fine: $ dig www.google.com @fddc:f797:78ef:70::5 +short +tcp 216.239.38.120 $ dig www.google.com @192.168.7.5 +short 216.239.38.120 $ dig www.google.com @192.168.7.5 +short +tcp216.239.38.120 The pasta process is running with these arguments: /usr/bin/pasta --config-net -u 53-53:53-53 -t 53-53:53-53 -t 3003-3003:3003-3003 -T none -U none --no-map-gw --netns /run/user/1002/netns/netns-378b62b8-bf27-3b51-1fb1-e2ebb7119647 I'm using passt-0^20230509.g96f8d55-1.fc38.x86_64 from Fedora CoreOS 38. Is this a known bug? or am I doing something wrong? Thank you.