ZyWALL USG 100/200 Series User’s Guide
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CHAPTER 16
Routing Protocols
16.1 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 Section 6.6 on
page 113 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.
16.1.1 What You Can Do in this Chapter
•Use the RIP screen (see Section 16.2 on page 400) to configure the ZyWALL to
use RIP to receive and/or send routing information.
•Use the OSPF screen (see Section 16.3 on page 401) to configure general OSPF
settings and manage OSPF areas.
•Use the OSPF Area Add/Edit screen (see Section 16.3.2 on page 408) to
create or edit an OSPF area.
16.1.2 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.
Finding Out More
See Section 16.4 on page 410 for background information on routing protocols.
Table 97 RIP vs. OSPF
RIP 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
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