listen_addr doesn't accept "[::]"

[imcdona]

What happened?

When I specify listen_addr = "[::]" I expect zebra to listen on the default port on all IPv6 addresses

Instead I get this error:

error: Zebra could not parse the provided config file. This might mean you are using a deprecated format of the file. You can generate a valid config by running "zebrad generate", and diff it against yours to examine any format inconsistencies.
error: zebrad fatal error: parse error: invalid IP address syntax; Hint: addresses can be a IPv4, IPv6 (with brackets), or a DNS name, the port is optional for key `network` at line 8 column 1

Note that specifying a port along with [::] works as expected: listen_addr = "[::]:8233"

What were you doing when the issue happened?

Attempting to start Zebra in a docker container

Zebra logs

error: Zebra could not parse the provided config file. This might mean you are using a deprecated format of the file. You can generate a valid config by running "zebrad generate", and diff it against yours to examine any format inconsistencies.
error: zebrad fatal error: parse error: invalid IP address syntax; Hint: addresses can be a IPv4, IPv6 (with brackets), or a DNS name, the port is optional for key `network` at line 8 column 1

Zebra Version

zebrad 1.6.1

Which operating systems does the issue happen on?

• [X] Linux
• [ ] macOS
• [ ] Windows
• [ ] Other OS

OS details

zfnd/zebra docker image

Additional information

No response

[arya2]

It doesn't like the brackets, listen_addr = "::" should work if you don't want to specify a port.

[mpguerra]

@arya2 should we document this in the zebra book?

[arya2]

@arya2 should we document this in the zebra book?

I'll update the config deserialization to accept this format too, I think that would be a better UX.