Configuration Outline - Polycom V2IU 4300T User Manual

Configuration Outline

Task
System Configuration
VoIP Configuration
Data Networking Configuration
Firewall Configuration
• NAT/PAT translation for IP phones and PC's. This allows a single public
IP address to be used on the WAN link to represent all of the private IP
addresses assigned to the LAN IP phones and PC's.
• Static NAT entries. This enables the customer to use a WAN public IP
address for data servers (web, mail, ftp, etc.) connected behind the 4300T.
These servers can then be configured with private IP addresses for
additional security.
• A "VoIP" aware firewall. A full Layer 7 gateway for voice traffic and a
stateful packet inspection firewall for data traffic.
• Call Admission Control (CAC). CAC uses a deterministic algorithm to
decide when there are insufficient network resources available to
adequately support new calls and then return the equivalent of a "fast
busy" to new call requests.
• DHCP server and TFTP relay. These features are used to simplify and
expedite the IP configuration of phones and PC's. This also includes VoIP
signaling gateway information (MGCP, SIP, H.323 and SCCP).
• Call quality monitoring (using MOS, jitter, latency, packet loss and much
more) and test tools.
• VoIP survivability. Provides call switching to an LAN based PSTN
gateway during WAN outages.
Subtask
configure LAN/WAN interface
set ethernet link rate
enable the DHCP server
configure SNMP
enable the VoIP ALG
configure a VoIP subnet route
dynamic NAT
static NAT
static IP routing
enable the data firewall
configure basic settings
configure advanced settings
Configuring the 4300T
Configure For IP Centrex
Application?
Yes
Optional
Optional but recommended
Optional
Yes
Optional
Optional but recommended
Optional
Optional
Yes
Optional
Optional
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