I have a UC540 + 2 x 7937 phones with almost default config. I removed the firewall part from the UC540, the rest is at default.
If i connect the phones to the internal switch ports, they work well.... i can make internal calls.
I configured an ip address on the fe 0/0 of the UC540 with ip address 172.17.8.160/24.
I installed IP Comm on my laptop and cofigured it with tftp 172.17.8.160.
I can call the the two7937 phones, everything is working.
I take one 7937 and disable dhcp, configure an ip address from the 172.17.8.0/24 subnet,and the tftp server 172.17.8.160.
When the phone boots it stays a long time in configuring CM list then tftp timeout.
From the phone i can ping the UC540 and from the UC540 the phone.
What is the problem here?