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Assessment Title
Rule Text
The Customer Edge Router (CE-R) must route all inbound traffic to the data firewall function except SIP, AS-SIP, and SRTP/SRTCP, which must route to the Session Border Controller (SBC).
Description
Discussion Text
The CE-R is the first line of defense at the gateway to the enclave or LAN. The data firewall and SBC functions are the second line of defense. Since the SBC function only processes VVoIP traffic in the form of SIP, AS-SIP, and SRTP/SRTCP packets, the CE-R should only forward these packets to the SBC, including SIP and SRTP traffic encapsulated on port 443. All other traffic must be forwarded to the data firewall.
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