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Default gateway : Where do teh packets go?
Topic Started: Jan 9 2018, 09:36 AM (4 Views)
LarryWalker

Hii..

when one sets up a network in docker does the default gateway send packets to the host ? Is it possible to capture these packets in anyway and redirect them via IP tables or the linux IPRoute2 stuff ?

I’m asking this as I am presently playing with the Traefik/Nginx-Proxy container. The host machine hosts my main website, domain.tld, and I would like to have containers made available within docker exposed via subdomains as in sub.domain.tld. I need NginX on the host to split any *.domain.tld traffic to the Nginx-Proxy/Traeffic container while still serving domain.tld from the host. I think I can do this via IP-transparency in NginX but need to confirm this is the case by capturing the packets sent to the default gateway and forwarding them to NginX on the host.

Thanks!

I didn't find the right solution from the Internet.

References:-

https://forums.docker.com/t/default-gateway-where-do-teh-packets-go/43905

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