ZyXEL Communications IP PBX X6004 - Manual (Page 129)

Chapter 5 Network Deployment
X6004 User’s Guide
129
Static Routes
When you configure static routes on the X6004, you are informing the X6004
about how to reach networks and devices that are not reachable via the default
gateway.
VLANs
Virtual Local Area Networks, standardized as IEEE 802.1Q, allow a physical
network to be partitioned into various logical networks. Only stations on the same
logical network can intercommunicate.
5.1.3 Before You Begin
Before you deploy the X6004, you should consider the following:
• If the X6004 has dynamically assigned IP address from your ISP, then you
should configure DDNS (Dynamic DNS). This allows the IP devices on the WAN
to establish connections with the X6004.
• If the X6004 is behind a firewall, then you must make sure that you create
firewall rules to let VoIP traffic pass through to the X6004.
• If the X6004 is behind a NAT router, then you must make sure that you
configure forwarding rules for VoIP communication to get to the X6004.
• If the IP phones on your LAN are located in different subnets, then you have to
configure static routes to ensure that the IP phones can connect to the X6004
and vice versa.