Rip Parameters Tab; Inbound Rip; Outbound Rip - Cisco VPN 3000 User Manual

3
Interfaces
Figure 3-4: Configuration | Interfaces | Ethernet 1 2 3 screen, RIP tab

RIP Parameters tab

RIP is a routing protocol that routers use for messages to other routers, to determine network
connectivity, status, and optimum paths for sending data traffic. RIP uses distance-vector routing
algorithms, and it is an older protocol that generates more network traffic than OSPF. The VPN
Concentrator includes IP routing functions that support RIP versions 1 and 2. Many private networks
with simple topologies still use RIPv1, although it lacks security features. RIPv2 is generally considered
the preferred version; it includes functions for authenticating other routers, for example.
To use the Network Autodiscovery feature in IPSec LAN-to-LAN configuration, or to use the automatic
list generation feature in Network Lists, you must enable Inbound RIPv2/v1 on Ethernet 1. (It is enabled
by default.)

Inbound RIP

This parameter applies to RIP messages coming into the VPN Concentrator. It configures the system to
listen for RIP messages on this interface.
Click the drop-down menu button and select the inbound RIP function:
Disabled
interface (default for Ethernet 2 and 3).
RIPv1 Only
RIPv2 Only
RIPv2/v1
Ethernet 1).

Outbound RIP

This parameter applies to RIP messages going out of the VPN Concentrator; that is, it configures the
system to send RIP messages on this interface.
Click the drop-down menu button and select the outbound RIP function:
Disabled
interface (default).
RIPv1 Only
3-10
= No inbound RIP functions; i.e., the system does not listen for any RIP messages on this
= Listen for and interpret only RIPv1 messages on this interface.
= Listen for and interpret only RIPv2 messages on this interface.
= Listen for and interpret either RIPv1 or RIPv2 messages on this interface (default for
= No outbound RIP functions; i.e., the system does not send any RIP messages on this
= Send only RIPv1 messages on this interface.
VPN 3000 Concentrator Series User Guide