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* icmp6 on wireguard iface responded by iface lo
@ 2021-09-14 16:45 Daniel
  2021-09-15  8:13 ` Daniel
  0 siblings, 1 reply; 2+ messages in thread
From: Daniel @ 2021-09-14 16:45 UTC (permalink / raw)
  To: wireguard

Hi all,

I use wireguard between 2 Debian11 and face a problem: traffic goes in 
to wireguard interface/ip address but goes out with lo as interface with 
the right ip address

19:23:50.287492 wig0 In IP6 fd99:1234:beef:cafe:fade::7000 > 
fd99:1234:beef:cafe:fade::7fff: ICMP6, echo request, id 18272, seq 5, 
length 64

19:23:50.287509 lo In IP6 fd99:1234:beef:cafe:fade::7fff > 
fd99:1234:beef:cafe:fade::7000: ICMP6, echo reply, id 18272, seq 5, 
length 64

Any clue on this ?

Thanks for your support

Daniel

-- 
Daniel

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: icmp6 on wireguard iface responded by iface lo
  2021-09-14 16:45 icmp6 on wireguard iface responded by iface lo Daniel
@ 2021-09-15  8:13 ` Daniel
  0 siblings, 0 replies; 2+ messages in thread
From: Daniel @ 2021-09-15  8:13 UTC (permalink / raw)
  To: wireguard

Hi

Le 14/09/2021 à 18:45, Daniel a écrit :
> Hi all,
>
> I use wireguard between 2 Debian11 and face a problem: traffic goes in 
> to wireguard interface/ip address but goes out with lo as interface 
> with the right ip address
>
> 19:23:50.287492 wig0 In IP6 fd99:1234:beef:cafe:fade::7000 > 
> fd99:1234:beef:cafe:fade::7fff: ICMP6, echo request, id 18272, seq 5, 
> length 64
>
> 19:23:50.287509 lo In IP6 fd99:1234:beef:cafe:fade::7fff > 
> fd99:1234:beef:cafe:fade::7000: ICMP6, echo reply, id 18272, seq 5, 
> length 64
>
> Any clue on this ?

Problem is in kernel vue of routing

ip route get fd99:1234:beef:cafe:fade::7000 from 
fd99:1234:beef:cafe:fade::7fff
anycast fd99:1234:beef:cafe:fade::7000 from 
fd99:1234:beef:cafe:fade::7fff dev lo table local proto kernel src 
fd99:1234:beef:cafe:fade::7fff metric 0 pref medium

After

ip route replace fd99:1234:beef:cafe:fade::7000 from 
fd99:1234:beef:cafe:fade::7fff dev wig0 table local

evrything is going back to normal behavior.

Thanks for your support

-- 
Daniel

^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2021-09-15  8:13 UTC | newest]

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2021-09-14 16:45 icmp6 on wireguard iface responded by iface lo Daniel
2021-09-15  8:13 ` Daniel

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