I would say it sounds like a router or switch problem. When the users have no throughput, can they ping the IP address of the ARC card? Can they resolve DNS? - Joel -----Original Message----- From: Lewis Bergman [mailto:lbergman@wtxs.net] Sent: Friday, September 12, 2003 8:54 AM To: Discussion relating to the 3Com/US Robotics Total Control modem systems. Subject: Re: [USR-TC] Throughput problem -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Friday 12 September 2003 08:39 am, Michelle Mogil wrote:
(Is this group still active???)
Folks:
I am up against the wall on a difficult problem. My users dial up, get connected, then either get no throughput at all or get throughput after a delay of up to five minutes. I lassoed one of our network engineers yesterday and tested it extensively. From what we were seeing, I get throughput once my IP address receives a ping. Has anyone seen this? I've gone over my IP pools and they seem to be fine: This is just a shot in the dark but is there any kind of firewall running on the internet side of the box that might have the syn flag set for those IP's or the interface they are connected to? A misconfigured firewall could drop all packets unless they originate from the wrong side of the interface.
Probably not it but, hey, at least it didn't cost you anything. The only other thing I would check is to make sure your routing table reflects the IP's if you use RIP or OSPF. - -- Lewis Bergman Texas Communications 4309 Maple St. Abilene, TX 79602-8044 915-695-6962 ext 115 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) iD8DBQE/YdAUpT00mQjG01gRAiE8AJ0QdtxP+0fvqbfz7wC794l2BLD1NwCff68A Qq8iaWqg3pAyO0+ncd5nQoQ= =8rC5 -----END PGP SIGNATURE----- _______________________________________________ USR-TC mailing list USR-TC@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/usr-tc