RE: I give up - TFTP
- From: "Dan Gabbard" <intellihome@xxxxxxxxx>
- To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
- Date: Thu, 17 Apr 2003 16:28:18 -0700
The little I know about TFTP is that TFTP uses UDP/69 as the initial
destination. The server then connects back from a random high UDP port to
the original (high) source port of the client, and the conversation then
continues between the two high UDP ports. A Cisco class I took brought this
to light. There is no authentication so it's not something I would want to
open ports for.
Dan
-----Original Message-----
From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxxxxxxxxx]
Sent: Thursday, April 17, 2003 4:03 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: I give up - TFTP
http://www.ISAserver.org
Hey guys,
I'm pretty sure that TFTP is a complex protocol, which means you need a
either need an application filter or be able to install the firewall
client on the TFTP client to make it work.
HTH,
Tom
Thomas W Shinder
www.isaserver.org/shinder
ISA Server and Beyond: http://tinyurl.com/1jq1
Configuring ISA Server: http://tinyurl.com/1llp
-----Original Message-----
From: Rick Parsons [mailto:rick@xxxxxxxxxxxxxxxxxx]
Sent: Thursday, April 17, 2003 5:01 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: I give up - TFTP
http://www.ISAserver.org
Hi Milena,
I had the same problem, using an SBS2000 Client machine with XP-Pro
installed. Luckily I have dual boot so I booted to Win 2000 pro,
problem solved.
Something in XP-Pro was stopping TFTP getting through.
Hope this helps.
Regards,
Rick Parsons
-----Original Message-----
From: Milena Marabini [mailto:milena@xxxxxxxxxxxxx]
Sent: 17 April 2003 19:47
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: I give up - TFTP
http://www.ISAserver.org
I have the same problem.
Do you resolve it?
Thanks.
Milena.
> -----Original Message-----
> From: mshirilla@xxxxxxxxxxxxxxxxxxxx
> [mailto:mshirilla@xxxxxxxxxxxxxxxxxxxx]
> Sent: Thursday, September 19, 2002 7:17 PM
> To: [ISAserver.org Discussion List]
> Subject: [isalist] I give up - TFTP
>
>
> http://www.ISAserver.org
>
>
> I would like to tftp from my router through ISA to a box on
> my internal
> network. My TFTP server gets the put request from the router, but it
> always times out. Any suggestions?
>
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