IP Authentication with SIP device Registeration enable

I am setup a SIP device using IP authentication, the issue is the SIP device does not have an option of disabling “SIP Registration”. When I have host=x.x.x.x, when receiving the Register request, * rejects it with
– Peer ‘5551212’ is trying to register, but not configured as host=dynamic
Is there anyway in * to setup IP Authentication and also accepting the registration request from a SIP device.

The * version is 1.6.1.10, and the extension.conf is

[5551212]
type=peer
callerid=5551212
nat=yes
dtmfmode=RFC2833
qualify=yes
canreinvite=yes
disallow=all
allow=ulaw
allow=alaw
allow=gsm
allow=g729
host=192.168.0.100 (not the real IP, just for the purpose of illustrating)
insecure=port,invite
context=from-internal

Thanks