Tranlsation Pool Exhausted

Posted on 2006-03-26
Last Modified: 2008-02-01
I have a Watchguard Firebox X50 Wireless with about 20 users accessing the internet and network at any given time.

After a while, my users can no longer connect to the internet and the log shows

NAT Translation Pool Exhausted

I haven't determined a time frame as to how long it takes for this to happen, what exactly is this and how can I stop it from happening?  If I reset the server (Server 2003), it seems to correct the problem for a this the firewall or something in Windows Server 2003?

Question by:Kevin Smith
    LVL 18

    Expert Comment

    Are you having Server 2003 do the NAT translation? That's what it sounds like. Whatever number of operations you have going seems to fill up the available translation table for addresses and ports.

    You might want to take a look at the server settings.
    LVL 20

    Accepted Solution

    Check your workstations, especially any wireless laptops for any type of malware - sounds like a worm trying to propagate or other malware running rampant.  If possible, take all the wireless users offline, clean them off, then put them back on the network, one at a time.

    LVL 18

    Expert Comment

    calvin - good call.

    ksmith - do you have any sort of logs of connections involving any of the machines? additionally, what sort of virus/spyware protection do you have on your network?

    Author Comment

    by:Kevin Smith
    Not sure what exactly happened, but disabling the wireless seems to eradicated the problem for now.  I'm gonna take calvin's advice and start working with each wireless user (there's not very many) in the office and see where it gets me.


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