Routing Protocols; Routing Protocols Overview; What You Can Do In This Chapter; What You Need To Know - ZyXEL Communications ZYWALL USG 20 Manual

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H A P T E R

14.1 Routing Protocols Overview

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
page 103 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.

14.1.1 What You Can Do in this Chapter

• Use the RIP screen (see
use RIP to receive and/or send routing information.
• Use the OSPF screen (see
settings and manage OSPF areas.
• Use the OSPF Area Add/Edit screen (see
create or edit an OSPF area.

14.1.2 What You Need to Know

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.
Table 83 RIP vs. OSPF
Network Size Small (with up to 15 routers)
Metric
Convergence Slow
Finding Out More
See Section 14.4 on page 324
ZyWALL USG 20/20W User's Guide

Routing Protocols

Section 14.2 on page
Section 14.3 on page
RIP
Hop count
for background information on routing protocols.
14
Section 6.6 on
314) to configure the ZyWALL to
315) to configure general OSPF
Section 14.3.2 on page
OSPF
Large
Bandwidth, hop count, throughput,
round trip time and reliability.
Fast
322) to
313