Cannot use IPV6 DNS

[pprocto]

Hello,

I would like to use an IPV6 DNS. I start this:

/bin/firejail \
  --noprofile \
  --protocol=inet,inet6 \
  --dns=2606:4700:4700::1111 \
  --net=wlp112s0 \
  --ignore=seccomp \
  nslookup -type=AAAA google.com

But I receive this error:

Parent pid 1662754, child pid 1662757

Interface        MAC                IP               Mask             Status
lo                                  127.0.0.1        255.0.0.0        UP    
eth0-1662754     94:e6:f7:83:a2:c5  192.168.0.195    255.255.255.0    UP    
Default gateway 192.168.0.254
DNS server 2606:4700:4700::1111

Child process initialized in 1082.32 ms
Warning: an existing sandbox was detected. /usr/bin/nslookup will run without any additional sandboxing features
net.c:137:try_proto(): socket(): Operation not supported (95)
;; UDP setup with 2606:4700:4700::1111#53(2606:4700:4700::1111) for google.com failed: network unreachable.
;; no servers could be reached
;; UDP setup with 2606:4700:4700::1111#53(2606:4700:4700::1111) for google.com failed: network unreachable.
;; no servers could be reached
;; UDP setup with 2606:4700:4700::1111#53(2606:4700:4700::1111) for google.com failed: network unreachable.
;; no servers could be reached


Parent is shutting down, bye...

Where is the problem ?

[kmk3]

GitHub Discussions has a poor UX for triaging bugs.

Also, basic debugging information is missing.

Please use the following link to report a bug and follow the template:

• https://github.com/netblue30/firejail/issues/new?template=bug_report.md

Edit: Moved to:

• IPV6 DNS: net.c:137:try_proto(): socket(): Operation not supported (95) #6932