HP (Hewlett-Packard) HP-UX 11i v2 Computer Accessories User Manual


 
Overview
The gated Routing Daemon
Chapter 1 23
gated translates among several protocols, passing information
within or between IP routing domains or autonomous systems.
Autonomous system (AS) is used here to refer to a group of
connected nodes and routers in the same administrative domain that
exchange routing information via a common routing protocol.
gated provides the system administrator flexibility in setting up and
controlling network routing. For example, gated can listen to
network traffic at specified routers, determine available routes, and
update local routing tables accordingly.
Deciding When to Use gated
gated is mostly used in large networks, or in small networks connected
to larger wide area networks.
You must run gated on routers (gateways) to send the routing
information to other routers. gated supports many routing protocols that
allow routers to build and maintain dynamic routing tables. However,
gated also supports RIP, which runs on end systems (systems with only
one network interface) as well as on routers.
NOTE gated also supports RDP as a client. RDP will replace rdpd.
gated is useful in topologies with multiple routers and multiple paths
between parts of the network. gated allows routers to exchange routing
information and to change routing information dynamically to reflect
topology changes and maintain optimal routing paths.
Alternatively, you can configure IP routes manually with the route (1M)
command. For end systems in subnets with only one router (gateway) to
the Internet, manually configuring a default route is usually more
efficient than running gated. For more details on manually
manipulating the routing tables, type man 1M route at the HP-UX
prompt.
When connected to wide area networks, you can use gated to inject local
routing information into the wide area network’s routing table.