Not a local SIP domain

hello

i have asterisk behind windows 2000 server with kerio winroute firewall.
(the W2K is a multihomed)
now, when sip clients from public try to connect i received this error

“Aug 23 16:10:19 NOTICE[2554]: chan_sip.c:11206 handle_request_register: Registration from ‘sip:gs_bt200@wan-ip-of-w2k-server’ failed for ‘124.106.231.148’ - Not a local SIP domain”

i already port forwarded (5004,5005,5060,64064) from w2K to asterisk
and also 8000-20000 is forwarded from kerio(kerio is w2k server) to asterisk server. i let port 8000-20000 forwared in kerio since port forwarding in w2k server will allow only one port and not port range.

likewise i set rtpstart=8000 and rtpend = 20000 in rtp.conf

and my sip.conf is something like this

“[general]
allowguest=yes
bindport=5060
bindaddr=0.0.0.0
domain=asterisk-ip
allowexternaldomains=yes
realm=asterisk-ip
externip=wan-ip-of-w2k-server
localnet=192.168.0.0/24
nat=yes
srvlookup=yes
disallow=all
allow=ulaw
allow=alaw
allow=gsm
allow=ilbc

any help

any tip? :smile:

just another try