Hello again,

Adding "default_bind tcp4/0.0.0.0 tcp6/[::]" to the global config of my 
Caddyfile made caddy bind to the IPv6 address and fixed my issue.
I believe that a note about this should be added to the package README 
to help more people use IPv6 as it's such a simple fix.


Thank you very much for your help

On 12/10/26 18:24, Stuart Henderson wrote:
> On 2026/10/12 02:57, pvpdm email wrote:
>> Hello OpenBSD ports team,
>>
>> I am using caddy-2.11.4 to act as a simple http server and reverse proxy for some services in
>> my home network.
>>
>> I have both IPv4 and IPv6 support from my ISP and I have enabled IPv6 on on the OpenBSD
>> machine. My issue is that caddy refuses to bind to any IPv6 interface/address. If I try to
>> bind, for example, port 443 with nc it listens on it just fine. I tried binding a static
>> response with `bind [::]` on port 8888, but it still refuses to bind.
> go is a bit broken with OS that don't allow v6 family sockets to accept
> v4 connections.
>
> caddy allows specifying the address family, so try specifically binding
> with "tcp4/0.0.0.0" and "tcp6/[::]".