Figure 10-2 Two Sv9100 Systems Connected Via The Wan - NEC Univerge SV9100 Manual

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Figure 10-2 Two SV9100 Systems Connected Via the WAN

systems. One on the corporate local LAN and one on a Remote network

connected via the WAN. The remote site cannot call the MAIN site, therefore, it is

not working.

Figure 10-2 Two SV9100 Systems Connected Via the WAN

Headquarters

The green arrow in

Figure 10-2 Two SV9100 Systems Connected Via the WAN

represents the data packets leaving the REMOTE IPLE card destined for the

SV91000 on the Headquarters LAN. The firewall on the Headquarters network is

not configured to recognize the TCP/UDP ports utilized by the NEC equipment,

thus blocking them resulting in registration failure. To solve this issue the ports

used by the NEC VoIP equipment must be opened in the firewall allowing the

NEC traffic to pass through onto the SV9100.

The ports, 58000 and 58002 (TCP) for signaling and the voice ports, are required

to be open at each location. This depends on how many IPLE ports are installed.

IPLE 256 Open UDP Ports 10020~10531

Another common feature is to use the Internet as the WAN between customer

locations. When this is done VPNs are typically used between the locations. A

VPN (Virtual Private Network) is a private data network that maintains privacy

through the use of tunneling protocols and security features over the public

internet. This allows remote networks (with private addresses), residing behind

NAT routers and/or firewalls, to communicate freely with each other. When

building the VPN tunnels, throughout the network, they must be assigned as a

fully meshed network. This means that every network is allowed direct connection

to each and every other network in the topology.

shows two SV9100

Remote Network

SV9100 NetLink