02-17-2007 08:27 AM - edited 03-09-2019 05:25 PM
Hello,
I have a strange problem and I cannot understand what is going on here. I hope that someone could help me.
I configured 877W router. Setup Firewall and NAT. I setup access from outside for my PCAnywhere workstation and for my Webserver. PCAnywhere and Webserver are located on a local LAN interface.
I cannot connect to the PCAnywhere at all. Something interesting is happening with the Webserver. I can connect to some basic pages with words only, for example page has a phrase ?Hello, this is a test?. If I try to open pages with some graphics on them, it cannot find the page. I cannot connect to ports 25, 80, or 110 on the Webserver (These ports are configured on the Firewall and configured with NAT).
Because I can connect to basic web pages, I am sure that NAT and firewall are configured correctly.
What can it be? Any ideas?
Thank you.
Igor L. Kravchenko.
02-18-2007 11:50 AM
02-19-2007 03:29 AM
Hi,
Does telnet to the webserevr on port 80, 110 works ?
If yes, then it is most likely be a packet size issue. O\Try reducing MSS on the LAN interface.
int vlan1
ip tcp adjust-mss 1400
exit
lower down the value, by 100 bytes till you get better results.
HTH,
-Kanishka
02-20-2007 04:27 AM
Thank you for your reply.
I can telnet to the ports 80 and 110. I cannot telnet to port 25.
I tried to lower MSS. The lowest that it would allow me to do was 552 but it did not help. I have the same problem.
Any other ideas?
Thank you.
Igor Kravchenko.
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