Hmm same problem again with two of my sites.
Only one of the two Wireguard VPN's are down. I have tried the following:
arno-iptables-firewall restart
service network restart
pppoe-restart
ip link set dev wg0 down & ip link set dev wg0 up
All to no avail. Any other ideas before I reboot?
PS there is no failover configured for this site so I don't think MTU is the
issue.
Regards
Michael Knill
On 20/3/21, 2:09 pm, "Michael Knill" <michael.kn...@ipcsolutions.com.au> wrote:
Thanks. Guess I will need to test it out.
Regards
Michael Knill
On 20/3/21, 2:03 pm, "Lonnie Abelbeck" <li...@lonnie.abelbeck.com> wrote:
While playing with the WG MTU, it seemed to work with only setting one
end and the tunnel used the smallest, but I played it safe and set everything
to 1340.
It would be good to know what the precise answer is.
Lonnie
> On Mar 19, 2021, at 9:57 PM, Michael Knill
<michael.kn...@ipcsolutions.com.au> wrote:
>
> Thanks Lonnie.
>
> PS I was just thinking (dangerous I know). I would need to set it on
both ends so do you think there would there be any issues with different MTU's
at each end?
> Ultimately it would be the same eventually but there would be a
migration period.
>
> Regards
> Michael Knill
>
> On 20/3/21, 1:41 pm, "Lonnie Abelbeck" <li...@lonnie.abelbeck.com>
wrote:
>
> I haven't seen any issues with a WG MTU of 1340, yet anyway.
>
> Lonnie
>
>
>> On Mar 19, 2021, at 9:29 PM, Michael Knill
<michael.kn...@ipcsolutions.com.au> wrote:
>>
>> Thanks Lonnie
>>
>> Hmm that may have something to do with it. Might also be when it
fails over to 4G.
>> As most of my VPN's carry voice only, I think a standard MTU of 1340
for all my systems should be fine. What do you think?
>>
>> Regards
>> Michael Knill
>>
>> On 20/3/21, 10:40 am, "Lonnie Abelbeck" <li...@lonnie.abelbeck.com>
wrote:
>>
>> Hi Michael,
>>
>> I have not experienced anything like that, WireGuard connectivity
is rock solid for me.
>>
>> I don't recall later WireGuard versions having any fixes for what
you are describing.
>>
>> Just guessing, the standard MTU for WG is 1420 (1500-80), if you
have a PPPoE connection with a MTU of 1492 you might try setting the WG MTU to
1412 (1500-8-80) or lower to test.
>>
>> I'm testing a 4G-LTE/5G fixed wireless internet service from
T-Mobile, they use Carrier Grade NAT (CGNAT) for IPv4 which lowers the MTU to
1420 (just like WG) so WG needs a MTU setting of 1340 to work over the CGNAT or
else it hangs.
>>
>> Lonnie
>>
>>
>>
>>
>>> On Mar 19, 2021, at 3:42 PM, Michael Knill
<michael.kn...@ipcsolutions.com.au> wrote:
>>>
>>> Hi Group
>>>
>>> Not sure if anyone else is experiencing this. I'm on 1.3.10 and all
my systems connect via Wireguard VPN to both my softswitches.
>>> Its generally all pretty stable but occasionally one of the VPN’s
will be disconnected and I have tried everything I can think of to bring it
back up but only a reboot has managed to do so at this stage.
>>> Any ideas?
>>>
>>> Regards
>>> Michael Knill
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>>
>>
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>
>
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