[Asterisk-Users] 7940 paperweight

[Joshua M Thompson]

On Fri, 2005-11-11 at 16:02 -0700, Kris Edwards wrote:

> Here is a tcpdump (mac changed):
> 
> 15:48:31.501856 IP 192.168.1.105.50170 > mulbman.tftp:  31 RRQ
> "CTLSEP00XXXXXXBD4D.tlv" o
> 15:48:35.501998 IP 192.168.1.105.50170 > mulbman.tftp:  31 RRQ
> "CTLSEP00XXXXXXBD4D.tlv" o
> 15:48:39.502162 IP 192.168.1.105.50170 > mulbman.tftp:  31 RRQ
> "CTLSEP00XXXXXXBD4D.tlv" o
> 15:48:43.502293 IP 192.168.1.105.50170 > mulbman.tftp:  31 RRQ
> "CTLSEP00XXXXXXBD4D.tlv" o
> 15:48:47.504194 IP 192.168.1.105.50171 > mulbman.tftp:  32 RRQ
> "SEP00XXXXXXBD4D.cnf.xml"
> 15:48:51.502542 IP 192.168.1.105.50171 > mulbman.tftp:  32 RRQ
> "SEP00XXXXXXBD4D.cnf.xml"
> 15:48:55.502685 IP 192.168.1.105.50171 > mulbman.tftp:  32 RRQ
> "SEP00XXXXXXBD4D.cnf.xml"
> 15:48:59.502815 IP 192.168.1.105.50171 > mulbman.tftp:  32 RRQ
> "SEP00XXXXXXBD4D.cnf.xml"
> 15:49:03.502961 IP 192.168.1.105.50171 > mulbman.tftp:  32 RRQ
> "SEP00XXXXXXBD4D.cnf.xml"
> 15:49:07.544093 IP 192.168.1.105.50077 > mulbman.cisco-sccp: S
> 2491131163:2491131163(0) win 1400 <mss 1400>
> 15:49:08.033496 IP 192.168.1.105.50077 > mulbman.cisco-sccp: S
> 2491131163:2491131163(0) win 1400 <mss 1400>
> 15:49:09.033501 IP 192.168.1.105.50077 > mulbman.cisco-sccp: S
> 2491131163:2491131163(0) win 1400 <mss 1400>
> 15:49:11.033569 IP 192.168.1.105.50077 > mulbman.cisco-sccp: S
> 2491131163:2491131163(0) win 1400 <mss 1400>

This looks strange to me...your server appears to be completely ignoring
the tftp requests from the phone. It's not even responding with a
"connection refused." I know you said you didn't have a firewall between
the phone and the server but this is exactly the behavior I'd expect
from a firewall with a default policy of "drop."

If it's a RedHat box of some sort (Fedora, RHEL, Centos) you might want
to make sure the default firewall is turned off by running "service
iptables stop" as root.

-- 
Joshua M Thompson <funaho at jurai.org>