Problem with Citrix and Cisco Routers

[Cristhian]

Hi all,
i have a big problem with Metaframe 1.8 for NT Terminal 4.0 and Windows 2000, the wan is :

citrix client --> router cisco 1600 --> isdn --> router cisco 2600 --> Pix Firewall --> Citrix Metaframe Server

The conexion in the client and the server is very slow and it lost frecuently.
i think that problem is in the NAT in the two routers because the client remote (PPP conections) i not problem in the conexion.

Any Idea?

Thanks

Crishtian

 

[CitrixEngineer]

Crishtian

How many users are using this connection?

For a 128k ISDN connection, I would suspect that you would only get a maximum of 6 light users.

If any have audio enabled at high quality, this would reduce the number to 2 at a push.

If any use high colour, and/or heavy apps like Lotus Notes, you will get issues.

Have you tried running a sniffer across the link?

If frequent timeouts are your main problem, there is a reghack which increases the number of retransmissions the server makes before dropping a slow connection.

I hope this helps you

 

[poetseal]

Cristhian, I've experienced the same thing with the PIX firewall - hangs, delays, and disconnects. I've seen other hits on the Internet complaining about this particular problem. I've gotten to the point where I can't live with the problems anymore; therefore, I am removing my Citrix boxes from the DMZ and placing them on my public network.

Mike (a.k.a. PoetSeal)

 

[CitrixEngineer]

Something else that occurs to me is data stored in profiles:

Across a WAN, this is very undesirable indeed. Ideally you want to keep the profile size below 1Mb, and point ALL data away from it, using policies or mapped shares.

 

[CitrixEngineer]

The reghack is:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\TcpMaxDataRetransmissions={value}

...and there is a document on Citrix's site CTX757449 which covers this in depth.

I hope this is useful to you.