[Astlinux-users] Double NAT on failover interface

[Michael K. <mic...@ip...>]

Pardon my ignorance on the following:

Although I have not confirmed, I appear to be having issues with bridge mode with my carrier. I have tried two modem types and it appears to just stop passing traffic after a while.
As such, I am considering using router mode but want to know if it is possible to be protected by the firewall without NAT (or PAT actually). Even if I was to actually use NAT e.g. a pool of network addresses rather than PAT e.g. port stays unchanged, then the double NAT issues should not be a problem.
Do I even need to bother? I suspect its not a problem for most traffic types. I will be using a VPN so it shouldn’t care.

Thanks

Regards
Michael Knill