RE: Port Forwarding problem on 2023

Frank Bello <[email protected]> Wed, 24 Apr 2013 17:12:54 +0000
Newsgroups gmane.comp.security.firewalls.m0n0wall
Message-ID <dd1c99d8578c4be2bbeaa0f2268ad1b9@BY2PR07MB074.namprd07.prod.outlook.com>
Never mind!
Dan, thanks for the input.
I went back to the guy that administers the unix server...

He updated the IP configuration to work in the new environment that we setup and he 'forgot' to set the gateway address.
So the M0n0wall was working correctly but the replies could never get back out.

User error. ;-))

Thanks all

Frank

-----Original Message-----
From: Daniel Jokinen [mailto:[email protected]] 
Sent: Wednesday, April 24, 2013 2:25 AM
To: [email protected]
Subject: [m0n0wall] SV: Port Forwarding problem on 2023

Hi Frank,

Usually whenever I get these kinda problems I delete the rule and set it again, which always seems to work. Make sure you use the "auto add firewall rule" when creating the NAT rule, failure  to do so can cause problems I know from experience.

However, it that doesn't work I'd start looking in the other end first. Does port 2023 work internally? Is there a firewall in use at the unix server side? Can you access canyouseeme.org from the unix server and see if it actually does work and there's something else all together?

 /Daniel Jokinen



-----Ursprungligt meddelande-----
Från: Frank Bello [mailto:[email protected]]
Skickat: den 24 april 2013 03:16
Till: [email protected]
Ämne: [m0n0wall] Port Forwarding problem on 2023

All,
I've been testing the M0n0wall appliance in an ESX 3i host and have been very pleased with it.
However I wonder if someone can help me find out how come a port/NAT forwarding rule that I'm trying to set for port 2023 is not working.

The rule allows access to the outside TELNET clients to an internal UNIX server which is listening for TELNET connections on port 2023

I have setup forwarding rules for RDP on 3389 and for VMWARE client management on SSL and other private ports and it works perfectly. However when I tell it to forward 2023 it does not. And only in that rule.

I have also tried to create another rule where the external port 23 will be forwarded to the internal 2023, but that does not work neither

Following are the pages from my setup. Any help ? thanks in advance.

F. Bello

Firewall: NAT: Inbound

InboundServer NAT1:1Outbound
  If Proto Ext. port range NAT IP Int. port range Description  WAN  TCP  3389  10.10.10.10  3389  RDP Service  WAN  TCP/UDP  443 (HTTPS)  10.10.10.100  443 (HTTPS)  VMWARE SSL  WAN  TCP/UDP  902 - 903  10.10.10.100  902 - 903  VMWARE  WAN  TCP/UDP  2023  10.10.10.11  2023  UNIX Server Access

Firewall: Rules

LAN WAN
    Proto Source Port Destination Port Description
   TCP  *  *  10.10.10.10  3389  NAT RDP Service
    TCP/UDP  *  *  10.10.10.100  902 - 903  NAT VMWARE
    TCP/UDP  *  *  10.10.10.100  443 (HTTPS)  NAT VMWARE SSL
    TCP/UDP  *  *  10.10.10.11  2023  NAT







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