Funkwerk bintec R1200 User Manual page 53

Note
IP Accounting
Back Route
Verification
Route Announce
Proxy ARP
WAN Partner
➤➤
Gateways use RIP to exchange information stored in routing tables by
communicating with each other at regular intervals. The gateway supports both
version 1 and version 2 of RIP, either individually or together.
RIP is configured separately for LAN and WAN.
Active and passive
Gateways can be defined as active or passive gateways: Active gateways offer
their routing entries to other gateways via
accept the information from the active gateways and store it, but do not pass on
their own routing entries. The gateway can be either active or passive.
WAN partner
If you negotiate with a WAN partner to receive and/or send RIP packets, your
gateway can exchange routing information dynamically with the gateways in the
LAN of the remote gateway.
Receiving routing tables via the RIP is a possible security loophole, as external
computers or gateways can change the routing functionality of the gateway.
RIP packets do not set up or hold dialup connections.
This option is for activating or deactivating the creation of IP accounting mes-
sages for this WAN partner. If IP accounting is activated, a statistics message
is generated (and entered in the biboAdmSyslogTable), which contains de-
tailed information about the connections to this WAN partner. (Settings for stor-
age of accounting messages into a file can be done in S
S L .)
YSTEM OGGING
This term conceals a simple but very powerful function of the gateway. If Back-
route Verification is activated for a WAN partner, data packets are only accept-
ed at the interface if answering packets would be routed over the same
interface. You can therefore prevent packets with fake IP addresses being ac-
cepted – even without filters.
This option enables you to set when routing protocols (e.g. RIP), that have been
activated if applicable, propagate the IP routes defined for this interface.
➤➤
Proxy ARP enables the gateway to answer
own LAN acting for the defined WAN partner. If a host in the LAN wants to set
Submenu IP
➤➤
broadcasts. Passive gateways
➜
YSTEM
➤➤
ARP requests from its
bintec User's Guide
5
E
XTERNAL
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