Force a specific IP for outgoing WG traffic with SNAT?
Roman Mamedov
rm at romanrm.net
Thu Feb 16 19:07:47 UTC 2023
Hello,
I'm trying to move all my WG communication with peers to a non-primary IP of my server.
It has IPs added like this:
inet6 2001:db8::ca6c/128 scope global deprecated
valid_lft forever preferred_lft 0sec
inet6 2001:db8::1/128 scope global nodad
valid_lft forever preferred_lft forever
What I tried:
ip6tables -t nat -I POSTROUTING -d 2000::/3 -p udp --dport 51820 -j SNAT --to-source 2001:db8::ca6c
Also tried to filter by --sport, and also briefly without a port filter at all.
This has zero effect, as shown by tcpdump all the WG traffic still originates from 2001:db8::1
Does anyone have an idea why is that? Thanks
--
With respect,
Roman
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