[asterisk-users] At whit's end was 'DHCP Failure screws up system '

[Doug Lytle]

Hey everybody,

I'm still having issues with this system.  The phones won't stay 
registered for more then a few minutes.  They're bouncing up and down.  
I'm able to ping the phones just fine.  What I've done so far:

Power cycled all phones and verified
Power cycled all switches
Checked the ARP tables on the routers/phone system (Seems to be okay)
Upgraded Asterisk to 1.4.19.2

Wireshark shows UDP checksum errors, but from what I can see on Google, 
this may be normal.

If I am on one of the phones when it goes AWOL, the call is not 
interrupted, but as soon as I hang up, I can't use it.

Any other suggestions?


Captured a sip debug as one of the extensions was dropping:



Reliably Transmitting (no NAT) to 10.10.10.198:5060:
OPTIONS sip:4247 at 10.10.10.198 SIP/2.0
Via: SIP/2.0/UDP 10.10.10.15:5060;branch=z9hG4bK122e04b7;rport
From: "asterisk" <sip:asterisk at 10.10.10.15>;tag=as1ed0ad8f
To: <sip:4247 at 10.10.10.198>
Contact: <sip:asterisk at 10.10.10.15>
Call-ID: 5080b35c0caca7a06943a01e77f95f2c at 10.10.10.15
CSeq: 102 OPTIONS
User-Agent: Asterisk PBX
Max-Forwards: 70
Date: Tue, 20 May 2008 14:47:40 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces
Content-Length: 0


---
Retransmitting #1 (no NAT) to 10.10.10.198:5060:
OPTIONS sip:4247 at 10.10.10.198 SIP/2.0
Via: SIP/2.0/UDP 10.10.10.15:5060;branch=z9hG4bK122e04b7;rport
From: "asterisk" <sip:asterisk at 10.10.10.15>;tag=as1ed0ad8f
To: <sip:4247 at 10.10.10.198>
Contact: <sip:asterisk at 10.10.10.15>
Call-ID: 5080b35c0caca7a06943a01e77f95f2c at 10.10.10.15
CSeq: 102 OPTIONS
User-Agent: Asterisk PBX
Max-Forwards: 70
Date: Tue, 20 May 2008 14:47:40 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces
Content-Length: 0

---
[May 20 10:47:41] NOTICE[3900]: chan_sip.c:15863 sip_poke_noanswer: Peer 
'4247' is now UNREACHABLE!  Last qualify: 39