[RndTbl] shaw 2nd ip

I think with Shaw residential I can get 2 dynamic IPs?

I'm using my modem in "bridge mode" or "wired mode" or whatever the shaw techs want to call it this week. In other words, the builtin router is disabled and it acts just like an old-style cable modem direct into my firewall.

Obviously, I'm getting 1 dynamic. That's great.

Can I get the 2nd too, but using just the one cable to the modem, and just the one NIC?

I'm guessing I'll have to assign a 2nd IP, 2nd fake MAC, and/or "fake" interface to the existing interface? Then setup dhcpclient to use it (too)? (All in linux, of course.)

Is what I'm describing doable or am I missing something here? Any tips on the sequence of events here?

Thanks!