Captures Isa live logging Get it Quit guessing From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Gerald G. Young Sent: Friday, January 19, 2007 6:51 AM To: isalist@xxxxxxxxxxxxx Subject: [isalist] Re: SMTP Connection Closed Resending since the first message got garbled. > I enter telnet mail.domain.com 25 (hit enter) the line disappears and > the curser just sits there and blinks - no banner - nothing. If I hit > enter again it goes back to the C:\ prompt. This is a half pipe opening but not being able to complete the connection, as your ISA logs also seem to be indicating. Is this occurring only from one location? What happens if you telnet to the ISA box from a source on the same subnet as it is? Do you still see these half pipes? Several other people reported being able to connect to your system without problems, so continue to validate the scope of the issue. Is it just a single remote location that is having the problem or are there many? I was also able to successfully connect. In the past one cause of this behavior was a asymmetric route; a member of a firewall (CheckPoint) pair died without dying (accepted traffic but didn't process any) and because of that, traffic would come in through one member and attempt to go back out through the other. If this is only occurring from one location, you may want to see what kind of network devices they have sitting between the client you are telnetting from and the server to which you are telnetting. HTH. Cordially yours, Jerry G. Young II Product Engineer - Senior Platform Engineering, Enterprise Hosting NTT America, an NTT Communications Company 22451 Shaw Rd. Sterling, VA 20166 Office: 571-434-1319 Fax: 703-333-6749 Email: g.young@xxxxxxxx All mail to and from this domain is GFI-scanned.