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Chapter 4 - RASFinder Software
remote IP address must fall within the same IP network as the local WAN IP address.
The Advanced tab is used to enable IP routing and RIP authentication and defines how the Dynamic
Host Configuration Protocol (DHCP) and Domain Name System (DNS) servers are to be used. This
tab is also used to set up the default route, any filters, OSPF (Open Shortest Path First), and Static
Routes. This tab also enables you to set up various configuration options for IP routing protocol, and
any options selected here apply to all ports on which IP routing takes place.
The Routing option is normally checked; however, if you do not wish to have IP packets routed, then
uncheck this item. If IP routing is disabled and bridging is enabled, IP packets are bridged; i.e., IP
packets are transferred.
The RIP option enables RIP based routing. RIP (Routing Information Protocol) is a protocol used
among routers to exchange routing table information. RIP is the most common protocol used in both
IP and IPX networks. It is also used internally by client workstations in IPX networks to obtain routes
(shortest, or otherwise) to any distant network. RIP based routing should normally be enabled. It can
be disabled, however, if you are using WAN links in Dial on Demand mode. For DOD links, disabling
RIP will reduce traffic on the link as it will also disable periodic RIP broadcasts. RIP routing on a
given port will be automatically turned off when Dial on Demand is enabled on the PPP Port Setup
tab for the WAN port.
The DHCP (Dynamic Host Configuration Protocol) group enables you to set up the WAN ports as
client-only. Then, a PPP client connected to the WAN port will be on the same IP network as the LAN
port of the RASFinder. This feature can save some extra IP addresses that otherwise would have
been taken up by the WAN port. Enabling the Client option allows the RASFinder to dynamically get
an IP address for a PPP client coming up on one of its "Client-only" WAN ports. When this option is
enabled, there must be a DHCP server or a DHCP relay agent on the connected LAN in order for the
RASFinder to acquire an appropriate IP address.
In most cases, you should not have to change any of the timers (i.e., default TTL, reassembly time-
out, RIP response time and RIP route aging time).
When the router is configured for remote access, the DNS Resolver needs to be enabled so that
applications such as the terminal server will support Domain Names. The dotted decimal IP address
of the Local DNS server should be entered in the field provided.
The Static Routes feature enables a remote network PC to access a specific workstation or
peripheral device on another network through a predefined route (static route). Static routing is
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