Special IP Bridging Trick

From: Derek Buelna (dameon@xxxxxxxxxxx)
Date: Tue Aug 22 2000 - 22:30:41 GMT-3


   
Hi,

Please excuse me as this isn't directly lab related.

I dial into my ISP's PRI with my BRI. (only thing available)
I bought a static IP so regardless of whether I set it or configure DHCP, I
get assigned the same address.
My next hop always changes, depending upon which PRI I come into.
I bought a 'subnet' as they called it and now my IP changed. They gave me
six consecutive addresses on the same net and said that I should use the
first one for the BRI. That is the only thing they can do. They can't
provide me with a net and mask and start routing traffic to it.

The only way I now how to deal with this is to use private addresses inside
and then do static translations for inside hosts. NAT.

However, the ISP told me that somehow, I can do bridging on a Cisco. I mean
I know how to configure basic bridging but: I would like for the Ethernet
to have a static public address and assign public addresses to a few hosts
on that Ethernet. This way my gateway for inside hosts would always be the
same. (useful for encryption configs)

Your thoughts would be very much appreciated.

Thanks,

-Derek

Derek A. Buelna, CCNP CCDP MCSE
Network Engineer
Firstworld Communications



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