Methods, systems, and computer readable media for providing diameter signaling router with firewall functionality

A method for Diameter routing and firewall filtering, the method comprising:

• at a Diameter signaling router:
• receiving, from a first Diameter node and at a network interface, a first Diameter message having Diameter information;
• determining whether the first Diameter message satisfies a firewall policy, wherein the firewall policy includes a rule for examining a Diameter level parameter in the first Diameter message to determine whether the first Diameter message satisfies the firewall policy;
• and
• forwarding at least a portion of the first Diameter message towards a second Diameter node in response to the first Diameter message satisfying the firewall policy.

A non-transitory computer readable medium having stored thereon executable instructions that when executed by the processor of a computer control the computer to perform steps comprising:

• at a Diameter signaling router:
• receiving, from a first Diameter node and at a network interface, a first Diameter message having Diameter information;
• determining whether the first Diameter message satisfies a firewall policy, wherein the firewall policy includes a rule for examining a Diameter level parameter in the first Diameter message to determine whether the first Diameter message satisfies the firewall policy;
• and
• forwarding at least a portion of the first Diameter message towards a second Diameter node in response to the first Diameter message satisfying the firewall policy.