Presentation on theme: "Intertex Data AB, Sweden VoIP to the Edge: Firewalls - The Missing Link Prepared for:Voice On the Net, Fall 2001 By: Karl Erik Ståhl President Intertex."— Presentation transcript:
IAP Firewall/NAT problems! IP Phone SIP Server PSTN SIP /PSTN Gateway Internet Home LAN Business LAN DSL Cable MTU VoIP and SIP Services Out to the Edge Operator network with NAT NAT Firewall NAT XP PIM Current status: SIP is the protocol for IP Communication person to person, BUT IT DOES NOT REACH THE EDGE!
Firewall/NAT problems! Firewall/NAT SIP transparency! IP Phone SIP Server PSTN SIP /PSTN Gateway Operator network with NAT Internet Home LAN NAT Firewall NAT Business LAN DSL Cable MTU DMZ inGate SIParator SIP Enabling the Private Networks inGate Firewall IP Phone IX66 IAP