[Asterisk-Users] Cisco and "protocol application invalid"

[Bjorn Ove Kristiansen]

Hey all!

 

Have configured a Cisco 7960 with no problems, put up an TFTP server and it
downloaded new sip binaries – all went well.

 

However, now I am having trouble getting two 7040s to work. Basically, my
problem is the above stated error message. If I had any entries in the TFTP
logfile, I could probably solve this problem. But the thing is, it just
doesn’t look as if the phones are connecting to TFTP at all.

 

Figured I’ll use a packet sniffer to find out which IP-address the phone
uses for connecting to a TFTP. That turned out to be rather complicated.
First, since I run routers and switches, sniffing packets on the LAN is a
hard task. Then I sat up a wireless connection to the internet and onnected
the phone to the computer using a shared internet connection, hoping that
Windows built-in DHCP server would get the packets flowing. It did, but no
packets could tell me which IP-address the phone is trying to reach…

 

Is there any way of getting to know which IP address Cisco uses to contact
TFTP?

 

 

Regards,

Bjorn


-- 
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.338 / Virus Database: 267.10.8/71 - Release Date: 12.08.2005
 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20050814/20c7cb0d/attachment.htm