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Community Member

Can't send files.....

I'm trying to transfer some files through a messaging client like msn messenger. It keeps failing saying to contact the administrator. We have private addressing here so I know that is a problem. I have configured the

cisco router to map a static outside IP to my inside IP, but that didn't help either. We are running NAT on the router. I am assuming some ports need to be opened.. Any help? THANKS!

Community Member

Re: Can't send files.....

Yes there are certain TCP ports required, 6891 through 6900, but that may not solve your problem.

The communication initiator in an IM file transfer sends his IP address when setting up the transfer. The problem is that the initiator doesn't know his "natted" address. All he knows is his private address. The other computer can't reply because he can't use the private address.

Microsoft offers some suggestions at

Good Luck...

Community Member

Re: Can't send files.....

Could you point me in the right direction on command line entries? Thanks!

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