Hi Group Been working on a pix and have come across a strange issue. Have ICMP allowed via the pix, but when a trace route is passed over it, all host names after the pix are replaced with the final address and name. So if the destination is 5 hops behind a pix and is called mail1, then on your trace route you see all the correct entry's up to the PIX but after it where you would expect to see entry's for each of the five hops you see duplicate lines with the name mail1. I take it that this is the PIX hiding the networks behind it and doing something similar to the fixup that it does to such things as SMTP. Have I got this right and is there some documentation from CISCO as to this type of operation. Thanks for your time and help Andrew > Andrew S. Twigger > Snr Systems Engineer > Technical Service's > DIALnet PLC > e : [EMAIL PROTECTED] > t : 0121 624 5050 > m : 07967 470 964 > > ___________________________________ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]