On 2026/05/14 18:37, Gabriele Vento wrote:
> 
> 
> On May 14, 2026 6:02:01 PM GMT+02:00, Alexandr Nedvedicky 
> <[email protected]> wrote:
> >Hello,
> >
> >On Thu, May 14, 2026 at 05:57:45PM +0200, Gabriele Vento wrote:
> ></snip>
> >> >
> >> >    the inet is 100.65.0.138
> >> >
> >> >    However I think it should be from the same network which is allowed
> >> >    by wgaip option. Perhaps you should run:
> >> >
> >> >  ifconfig wg0 15.204.55.83/10
> >> That also does not work befause the problem is actually that the allowed IP
> >> is wrong, not the inet. In fact, any IP I try to allow results in the wgaip
> >> field being set to the endpoint ip (15.204.55.84) with whatever subnet 
> >> mask I
> >> specified, even IPs not under 100.0.0.0/8.
> >
> >    So it looks like the tool you use to set up the tunnel is broken.
> >    you should be able to use ifconfig(8). try to follow steps in
> >    Solene's blog it did work well for me recently.
> I tried following the blog, currently /etc/hostname.wg0 contains
>     wgkey <privkey>
>     wgpeer k/QiJlbMakMKgTCHVt8/D+8k4DzRVM6U33F3gMZfRUg= wgendpoint 
> 15.204.55.83 42070 wgpsk <presharedkey> wgaip 100.64.0.0/10
>     inet 100.65.0.138/32

the thing that you don't have is anything telling the machine what
traffic to send to the wg interface.

(wgaip is a dual purpose thing, firstly it allows you to set which
addresses the peer may send from, secondly it is a selector to choose
which amongst a number of peers to send traffic to, *but* only once it
has already been directed to the wg interface via the normal route
table).

you haven't described what you're actually trying to route over the
tunnel, but using a /32 on this is probably not what you want here.
maybe /10 if you're trying to route all of the 100.64/10 SHARED-NETWORK
(CGN) address space over it.

>     up
> 
> I tried various combinations, such as omitting the preshared key or putting 
> it before the wgendpoint field, and also tried using 0.0.0.0/0 as allowed ip 
> (so that it would have kept the /0 part) to no avail, it still does show 
> 15.204.55.83 as wgaip when shown with `ifconfig wg`, and even when the mask 
> is /0 it doesn't let me ping any IP in the network.
> 
> >good luck.
> >regards
> >sashan
> >

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