Firewall Wizards mailing list archives
TFTP (Was: Re: firewall-wizards Digest, Vol 10, Issue 9)
From: Carson Gaspar <carson () taltos org>
Date: Tue, 20 Feb 2007 21:54:44 -0800
St John, Richard wrote:
One of the problems we had was that TFTP can be both UDP and TCP. When VOIP was initiated {we run phones on remote sites through our VPNs for config} we had the problems you described, it was not until we noted our illustrious new firewall admin had opened TCP 69 and not UDP69. Once that was opened to the remote networks, everything started to work fine. Our firewall logs show that the Cisco & Mitel phones all were trying to pull on UDP 69
No. TFTP is UDP only (and a horrid port-changing lockstep UDP protocol at that - writing an app proxy for it was... interesting). -- Carson _______________________________________________ firewall-wizards mailing list firewall-wizards () listserv icsalabs com https://listserv.icsalabs.com/mailman/listinfo/firewall-wizards
Current thread:
- Re: firewall-wizards Digest, Vol 10, Issue 9 St John, Richard (Feb 15)
- TFTP (Was: Re: firewall-wizards Digest, Vol 10, Issue 9) Carson Gaspar (Feb 22)