ZyXEL Communications 1000 User Manual

ZyWALL USG 1000 User’s Guide

Routing protocols give the ZyWALL routing information about the network from 
other routers. The ZyWALL stores this routing information in the routing table it 
uses to make routing decisions. In turn, the ZyWALL can also use routing 
protocols to propagate routing information to other routers. See 

 for related information on the RIP and OSPF screens.

Routing protocols are usually only used in networks using multiple routers like 
campuses or large enterprises.

• Use  the RIP screen (see 

) to configure the ZyWALL to 

use RIP to receive and/or send routing information. 

• Use  the  OSPF screen (see 

) to configure general OSPF 

settings and manage OSPF areas. 

• Use  the  OSPF Area Add/Edit screen (see 

) to 

create or edit an OSPF area. 

The ZyWALL supports two standards, RIP and OSPF, for routing protocols. RIP and 
OSPF are compared here and discussed further in the rest of the chapter.

 for background information on routing protocols.

Table 86   RIP vs. OSPF

Network Size Small (with up to 15 routers)

Large

Metric

Hop count

Bandwidth, hop count, throughput, 
round trip time and reliability. 

Convergence Slow

Fast