Re: [PATCH] conf: Separate local mode for each IP version, don't enable disabled IP version

5 Dec 2025

      On Fri, 5 Dec 2025 13:00:37 +0100
Paul Holzinger  wrote:
...
On 05/12/2025 12:31, Stefano Brivio wrote:
...
On Fri, 5 Dec 2025 12:26:06 +0100
Paul Holzinger  wrote:
...
On 05/12/2025 01:51, Stefano Brivio wrote:
...
This fixes an issue and introduces a feature:
- in local mode, we accidentally ignored the -4 / --ipv4-only and
    -6 / --ipv6-only command line options
- if no template interface is available for a given IP version,
    instead of disabling that IP version, use local mode, separately,
    for it
Link: https://bugs.passt.top/show_bug.cgi?id=129
Link: https://bugs.passt.top/show_bug.cgi?id=128
Signed-off-by: Stefano Brivio   
Tested-by: Paul Holzinger   
Ah, thanks, that's quite reassuring / much needed for this one.
FWIW, this is how I tested:
unshare -rn  sh -c "ip link add test type bridge && ip link set test up 
&& ip addr add 192.168.0.0/24 dev test &&  ./pasta --config-net ip a"
unshare -rn  sh -c "ip link add test type bridge && ip link set test up 
&& ip addr add 2620::1/64 dev test &&  ./pasta --config-net ip a"
And then the variations with  adding -4/-6.
I went another way:

  $ ./pasta --config-net -4 -- ./pasta --config-net ip a

  $ ./pasta --config-net -6 -- ./pasta --config-net ip a

...maybe we should consider to slowly start making --config-net the default.

-- 
Stefano