[squid-users] squid listen on UDP for * or 0.0.0.0

[Amos Jeffries]

On 13/12/2022 7:43 am, Ahmad Alzaeem wrote:
>
> Hello Folks
>
> ,
>
> Wondering why I see squid listening on UDP sockets. And how can I 
> disable that behavior?
>
>

Default config is to let the OS select best src-IP for all outgoing traffic.
In order to receive UDP responses Squid needs to listen on all IPs the 
OS might have chosen.

Use <http://www.squid-cache.org/Doc/config/udp_incoming_address/> to set 
a specific UDP receiving address.
This will also change the default udp_outgoing_address so that the 
responses come back to your chosen listening address.

HTH
Amos