Routing and WAN connections
356
11.2
IP routing
BAT54-Rail/F..
Release
7.54
06/08
You also use the IP routing table to tell the router the length of this route's
path so that it can select the most suitable route in conjunction with IP RIP
where there are several routes to the same destination. The default setting
for the distance to another router is 2, i.e. the router can be reached directly.
All devices which can be reached locally, such as other routers in the same
LAN or workstation computers connected via proxy ARP are entered with the
distance 0. The “quality level” of this route will be reduced if the entry ad-
dressed has a higher distance (up to 14). “Unfavorable” routes like this will
only be used if no other route to the remote station in question can be found.
U Configuration of the routing table
An IP routing table can, for example, look like this:
What do the various entries on the list mean?
D IP addresses and netmasks
This is the address of the destination network to which data packets may
be sent and its associated network mask. The router uses the network
mask and the destination IP address of the incoming data packets to
check whether the packet belongs to the destination network in question.
The route with the IP address '255.255.255.255' and the network mask
'0.0.0.0' is the default route. All data packets that cannot be routed by
other routing entries are sent over this route.
D Routing Tag
With the routing tag the selection of the target route can be controlled
more easily. Therefore not only the target IP adress for the selection of
the route is detected but also other information, which is joined to the
data packets by the firewall. With the routing tag “0” the routing entry is
valid for all packets.
D Router
Configuration tool Run
LANconfig IP router
Routing Routing table
WEBconfig Expert Configuration
Setup IP-router
IP-routing-table
Terminal/Telnet
cd /setup/IP-router/IP-routing-table
IP address Netmask Routing-Tag Router Distance Masquerading Active
192.168.120.
0
255.255.255
.0
0MAIN2Offyes
192.168.125.
0
255.255.255
.0
0 NODE1 3 Off yes
192.168.130.
0
255.255.255
.0
0 191.168.140.1
23
0 Off yes
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