What You Need To Know; The Rip Screen - ZyXEL Communications ZyWall ATP series User Manual

Routing protocols are usually only used in networks using multiple routers like campuses or large
enterprises.
• Use the RIP screen (see
and/or send routing information.
• Use the OSPF screen (see
OSPF areas.
• Use the OSPF Area Add/Edit screen (see
• Use the BGP screen (see

10.5.1 What You Need to Know

The Zyxel Device 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 125 RIP vs. OSPF
Network Size
Metric
Convergence

10.6 The RIP Screen

RIP (Routing Information Protocol, RFC 1058 and RFC 1389) allows a device to exchange routing
information with other routers. RIP is a vector-space routing protocol, and, like most such protocols, it
uses hop count to decide which route is the shortest. Unfortunately, it also broadcasts its routes
asynchronously to the network and converges slowly. Therefore, RIP is more suitable for small networks
(up to 15 routers).
• In the Zyxel Device, you can configure two sets of RIP settings before you can use it in an interface.
• First, the Authentication field specifies how to verify that the routing information that is received is the
same routing information that is sent.
• Second, the Zyxel Device can also redistribute routing information from non-RIP networks, specifically
OSPF networks and static routes, to the RIP network. Costs might be calculated differently, however,
so you use the Metric field to specify the cost in RIP terms.
• RIP uses UDP port 520.
Use the RIP screen to specify the authentication method and maintain the policies for redistribution.
Click Configuration > Network > Routing > RIP to open the following screen.
Chapter 10 Routing
Section 10.6 on page
Section 10.7 on page
Section 10.8 on page
RIP
Small (with up to 15 routers)
Hop count
Slow
ZyWALL ATP Series User's Guide
311) to configure the Zyxel Device to use RIP to receive
313) to configure general OSPF settings and manage
Section 10.7.2 on page 317) to create or edit an OSPF area.
320) to configure eBGP (exterior Border Gate Protocol).
OSPF
Large
Bandwidth, hop count, throughput, round trip time and
reliability.
Fast
311