4IPNET WHG301, User Manual

Page: 41 / 97

© 2008 4IPNET, INC.
36
4ipnet WHG301 User ’ s Manual
o
WINS Server IP: The IP address of the WINS (Windows Internet Naming Service) server that if
WINS server is applicable to this service zone.
o
Lease Time: This is the time period that the IP addresses issued from the DHCP server are valid
and available.
o
Reserved IP Address List: Each service zone can reserve up to 40 IP addresses from predefined
DHCP range to prevent the system from issuing these IP addresses to downstream clients. The
administrator can reserve a specific IP address for a special device with certain MAC address.
2)
Service Zone Settings
–
SIP Interface Configuration
The system provides SIP proxy functionality, which allows SIP clients to pass through NAT. When enabled, all
SIP traffic can pass through NAT via a fixed WAN interface. The policy route setting of SIP Authentication must
be configured carefully because it must cooperate with the fixed WAN interface for SIP authentication.
SIP Transparent Proxy can be activated in both NAT and Router mode. SIP Authentication must support in
either mode. For users logging in through SIP authentication, a policy can be chosen to govern SIP traffic. The
policy
’
s login schedule profile will be ignored for SIP authentication. Specific route and firewall rules of the
chosen policy will be applied to SIP traffic.