Internetworking and Management Overview

Parameter

Definition

 

 

Bridge/Router Mode

Select Bridge or Router. Both Campus-REX units connected

 

through the HDSL link must be configured as routers for

 

static routing to work.

Packet Encapsulation

Select either PPP or HDLC. You must set both Campus-REX

 

units connected through the HDSL link to the same

 

encapsulation option. For static routing, set this option to

 

HDLC.

Default Router IP Address

Specifies the next hop default router entry. This entry tells the

 

Campus-REX what to do with a packet that has a destination

 

address that is not in the Static IP Routing table.

IP Static Routing Table

Specify up to three static route entries, where each entry

 

includes: destination Subnet or host IP address, destination

 

Subnet Mask, and the IP address of the next-hop Gateway to

 

which the packet should be sent. When you configure the

 

remote end of a point-to-point HDSL connection, you can

 

leave this table blank and specify a single default router IP

 

address since all packets will be forwarded to the other end

 

of the connection. Or for security, you can choose to fill in the

 

table.

LAN IP Address and

Enter the IP address and subnet mask for the LAN Port

Subnet Mask

(10BASE-T port). These must be configured for static IP

 

routing to function properly.

Line IP Address and

Enter the IP address and subnet mask for the Line Port

Subnet Mask

(HDSL port). These must be configured for static IP routing

 

to function properly. When you configure a point-to-point

 

system, the Line IP address of both units must belong to the

 

same IP subnet and the Line Subnet Mask parameters for

 

both units must be the same. The Line IP Address and

 

Subnet Mask for a point-to-point system are isolated and

 

hidden from the rest of the network—you may use any

 

subnet.

Configure a Static Route entry in any of the external routers that may have been specified as a Default Router IP address or as a Gateway address in the Campus-REX. This is required because the Campus-REX does not send periodic route updates using protocols like Routing Information Protocol (RIP) or Open Shortest Path First (OSPF) so that other external routers can automatically update their routing tables. This implementation prevents other

Campus-REX RS Interface Card User Manual

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