Lancom Systems LCOS 3.50 - Manual (Page 68)

LANCOM Reference Manual LCOS 3.50 ̈ Chapter 7: Routing and WAN connections
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Routing and
W
A
N
con
n
ections
That way routes which are forbidden on the Internet (private address
spaces, e.g. '10.0.0.0'), for example, are excluded from transmission.
If an IP address is input as router name, this is a locally available router,
which is responsible for transfer of the relevant data packets.
̈ Distance
Number of routers between your own and the destination router. This
value is often equated with the cost of the transmission and used to dis-
tinguish between inexpensive and expensive call paths for wide-area con-
nections. The distance values entered are propagated as follows:
୴ All networks which can be reached while a connection exists to a des-
tination network are propagated with a distance of 1.
୴ All non-connected networks are propagated with the distance
entered in the routing table (but with a minimum distance of 2) as
long as a free transmitting channel is still available.
୴ The remaining networks are propagated with a distance of 16
(= unreachable) if there are no longer any channels available.
୴ Remote stations connected using proxy ARP are an exception to this.
These “proxy hosts“ are not propagated at all.
̈ Masquerading
Use the 'Masquerade' option in the routing table to inform the router
which IP addresses to use when transferring packets from local networks.
For further information see the section ’The hiding place—IP masquer-
ading (NAT, PAT)’
→ page 74.
7.2.2 Local routing
You know the following behaviour of a workstation within a local network:
The computer searches for a router to assist with transmitting a data packet
to an IP address which is not on its own LAN. This router is normally intro-
duced to the operating system with an entry as standard router or standard
gateway. It is often only possible to enter one default router which is supposed
to be able to reach all the IP addresses which are unknown to the workstation
computer if there are several routers in a network. Occasionally, however, this
default router cannot reach the destination network itself but does know
another router which can find this destination.