topic Re: Need help debuging in Network Security

Need help debuging

agent2007 — Mon, 11 Mar 2019 13:00:28 GMT

Hi All,

I have a desktop on the lan that has checkpoint secure remote installed and authenticates against a third party firewall. This was working fine but suddenly it has stopped working. In the monitoring I can see the acl is allowing the connection out. I can not see the firewall dropping it but the firewall on the remote end does not see the client trying to communicate. from the desktop I can telnet to the remote firewall in on the port that the application uses. Im out of ideas can anyone offer me any help?

thanks

Re: Need help debuging

edunn — Tue, 17 Jun 2008 12:07:35 GMT

If you can telent to the port, than it is open. Does the admin on the remote side see the successful telnet connection? I would also check to make sure that a desktop firewall on the client isn'tblocking the Secure Client communication. Also, it may make sense to reinstall the Secure Remote client and possible install it on a test machine and allow that traffic through your firewall to eliminate the current client machine as the cause of the issue.

Re: Need help debuging

agent2007 — Tue, 17 Jun 2008 12:18:09 GMT

thanks for the reply. to check there was no ip issue (outside int fwall IP) i created a static nat for a different public IP and it worked. so I asked the guy on the other end to check the rule base and he had a site so site VPN created to the firewall on my side for some unknown reason as it was not configured on this side. issue resolved!!