14 Nov
2003
14 Nov
'03
8:19 a.m.
On Nov 13, 2003 at 18:15, Andres <andres(a)telesip.net> wrote:
Today we tried to install a Grandstream phone at a
cutomer site but were
unable to make it work. We have about 40 of these phones (all configured by
US in the exact same way) and all working fine. But upon plugging this
phone, SER started generating this message constantly in the log file:
Nov 13 16:53:14 maui /usr/local/sbin/ser[5066]: ERROR:
udp_rcv_loop:recvfrom:[11] Resource temporarily unavailable
Nov 13 16:53:16 maui /usr/local/sbin/ser[5068]: ERROR:
udp_rcv_loop:recvfrom:[11] Resource temporarily unavailable
Nov 13 16:53:19 maui /usr/local/sbin/ser[5065]: ERROR:
udp_rcv_loop:recvfrom:[11] Resource temporarily unavailable
This error (EAGAIN) appears also when and udp packet with bad checksum
is received. In this case the linux kernel will return EAGAIN. I think
this is the case for you. Probably your "new" phone is placed before a
very bad link which corrupts the packet (or you have a bad firewall).
[...]
Can anybody tell me what could be the cause of this error? Or if anybody
wants to look at the ETHEREAL trace I can sent it directly (its about 1MB).
Send it to me (and also tell me the ip addresses of the guilty phone and
of ser).
Andrei