topic Re: telnet showing open port on ILO when its not when going via FW in General Topics

telnet showing open port on ILO when its not when going via FW

carl_t — Tue, 01 Jul 2025 11:51:37 GMT

Hi All

We have a strange issue, maybe its our testing

We have an ILO on a certain site, if we test an open port to the ILO say port 15600 locally, server in same subnet, the port shows as closed.

If we do the same test from another site over the WAN where the traffic has to flow via our Checkpoint firewall, the port shows as open.

Am I missing something here?, does the firewall respond instead of the server or something making us think its open, or ?

Re: telnet showing open port on ILO when its not when going via FW

Chris_Atkinson — Tue, 01 Jul 2025 13:07:38 GMT

Perhaps sk157112 applies in your case?

If not please provide some additional details on the gateway configuration & version/JHF etc

Re: telnet showing open port on ILO when its not when going via FW

carl_t — Tue, 01 Jul 2025 14:00:51 GMT

We have found the issue, match for any was ticked on a H323 port range, this was trying to do H323 inspection on the port, we have unticked it and now its blocking the port as it should.