Scenario. The customer has a number of server and workstations all of which go out through the same gateway firewall. One of the server is unable to access the internet via HTTP or HTTPS. I've tested different browsers and via telnet and I get the same results.
SSH, DNS and everything else I've tried works fine, just HTTP and HTTPS which fail.
Below is a capture from the server while I was attempting to browse to google.co.uk via its IP address. (I'm getting the same results when attempting to access any internet based webpage. I can access web pages on the local network fine.)
Here's the traffic traversing the firewall.
13 08/08/2012 11:15:30.720 X0*(i) X1 192.168.0.5 18.104.22.168 IP TCP 61952,80 FORWARDED 66
14 08/08/2012 11:15:33.720 X0*(i) X1 192.168.0.5 22.214.171.124 IP TCP 61952,80 FORWARDED 66
15 08/08/2012 11:15:39.720 X0*(i) X1 192.168.0.5 126.96.36.199 IP TCP 61952,80 FORWARDED 62
16 08/08/2012 11:16:11.064 -- X0*(s) 188.8.131.52 192.168.0.5 IP TCP 80,61952 GENERATED 54
Can anyone point me in the right direction as to what's occurring here?
Packets (SYN) are sent out, but no response comes back. Probably you forgot to add a NAT for your HTTP/HTTPS traffic (or for the server network) on the SonicWall.