Deep inspection filtering

Last Updated : Feb 25, 2015 |

SIP Firewall rules provide the following filters for deep inspection:

  • SIP Layer content

  • IP and Transport layer parameters such as IP address, protocol, and port.

You can combine both SIP Layer content and IP transport layer parameters in a single Firewall rule. For example, a SIP Firewall rule can limit the high rate of INVITE packets coming from a remote IP address.