Secure for my ethernet and sip protocol

I have a asterisk 1.4.21 running on my centos and its works fine, but my needs push me to put asterisk with two interfaces ETH0 and ETH1. I want that my sip phones which they belong to the network on ETH0 can be register and do calls. but nobody that came from ETH1 cant even register…

is there any parameters that do that on asterisk for the protocol sip?




two options , IPtables or the bind address also you could use ACL’s in the peers


ACLS in peers how is that? sorry my first languaje is not enlglish

pfffffffff :angry: thanks for nothing