What about tcp port 5178? ~Rick
----- Original Message ----- From: "Herschel Jones" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, February 11, 2003 3:13 PM - SATCOM Subject: [IpswitchIM_Forum] NAT Problems and Solutions > After reading the several posts regarding the difficulties setting IM server > up in a network that is behind a firewall performing NAT. I figured I'd > drop a bit of information out here and hopefully clear things up. There are > a few very important things to remember. First and foremost, the NAT > gateway host, for best results, should be the external IP of the NAT device > (ie. whatever your domain name resolves to from outside the network). > Secondly, you MUST be forwarding all traffic for TCP port 5177 to the > machine running IM Server. Another important piece of information is that > the host name and domain name of the server (found in TCP/IP properties) CAN > NOT be the same as the host name and domain of the NAT device. When you are > creating user accounts for IM, the user account must reflect the public host > name, example: the domain name of the server is IM.Domain.com, then users > will have to log on as [EMAIL PROTECTED] to successfully authenticate. The > final thing coming to mind is that for all users inside and outside to > communicate successfully, there are 3 places to ping from...outside the > network, inside the network, and from the server itself. You will need to > ping the host name that the users are logging onto (IM.domain.com), and from > all three of these places, that hostname must resolve to the same IP > address. > > Keep in mind also, that if your clients are also behind a firewall, they > will need to enable client uses NAT on their local machine. This can be > found in the registry at > HKEY_CURRENT_USER\Software\Ipswitch\Messenger\Version 1.0\Settings. You > will see a value "client uses nat" and will need to change that integer to > 1. > > Should this be a tad unclear (I tend to get that way from time to time), in > the help for server manager, search for NAT and it will give detailed > instructions with screenshots that may be a bit more helpful. > > If all the above is correct, there are very few instances that clients > inside the network will not be able to chat with clients outside the > network. Should there be any other questions, you can always go to > http://askatech.ipswitch.com and fill out the support form. Please be as > detailed as possible when sending your support request. We are here to help > you as much as possible, so don't hesitate to drop support a line. > > -HJ > ___________________________________________________________________ Virus Scanned and Filtered by http://www.FamHost.com E-Mail System. To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/ipswitchim_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/Instant_Messenger/index.asp
