The IP over ATM Mailing List Archive by date[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] 1577 ATMARP / InATMARP issue
I'm catching up on old mail... This sounds exactly like what you do on Ethernet to detect "duplicate" IP addresses. Drew ----------------------------------------------------------------- FORE Systems, Inc. Tel: (412) 772-6527 174 Thorn Hill Road Fax: (412) 772-6500 Warrendale, PA 15086-7535 Email: ddp@fore.com > FWIW, this could also be used as a rudimentary security check. > If the server already has a table entry for the client's IP address > it could return the old ATM address from its table before replacing > the value in the table with the address in the ARP request. This would > provide the client with an indication of possible spoofing if the two > address in the reply did not match the address it sent (accounting > for things like changing of ATM address by the client would have to be > taken into account, but only by the client). Since the > client would have to re-register periodically (assuming no inATMARP > from the server), then this would provide periodic checking for > spoofing. > > --- pete > ------------------ > Peter Schulter schulter@zk3.de.com > DEC OSF/1 Networking (603) 881-2920 > Digital Equipment Corp > 110 Spit Brook Road > Nashua, NH 03062 > |
|