/usr/sbin/ogated [-t [i] [e] [r] [p] [u] [R] [H]] [logfile]
The ogated daemon processes multiple routing protocols according to the configuration set in ogated.conf file.
The ogated daemon manages multiple routing protocols, including the Routing Information Protocol (RIP), Exterior Gateway Protocol (EGP), and Local Network Protocol (HELLO). The ogated process can be configured to perform all or any combination of these routing protocols. It replaces daemons that use the HELLO routing protocol; for example, routed (8) and egpup (8). The configuration for the ogated daemon is by default stored in the /etc/ogated.conf file, and can be changed at compile time in the file defs.h. The ogated daemon stores its process ID in the /var/run/ogated.pid file.
When a routing update indicates that the route in use is being deleted, the ogated daemon waits for 2 minutes before deleting the route. Be aware that unpredictable results may occur when the ogated and routed daemons are run together on the same host.
Start the ogated daemon with a log file that you specify on the command line. You can also enter one or more trace flags on the command line or specify the flags in the traceflags stanza of the ogated.conf configuration file. When trace flags are specified without a log file, all trace output is sent to the controlling terminal.
By default, the ogated daemon forks and detaches itself from the controlling terminal.
When certain networks are restricted from using the Internet network, the ogated daemon uses both the syslogd daemon at the LOG_WARNING log level and the LOG_DAEMON facility to record all invalid networks.
If you use the EGP when you supply the default route (by the RIP or HELLO gateway) and all EGP neighbors are lost, the default route is not advertised until at least one EGP neighbor is regained.
The RIP both propagates and listens to host routes. This allows the ogated daemon to handle point-to-point links with consistency. The ogated daemon also supports the RIP_TRACE commands.
The ogated daemon detects changes made to the network interfaces and its own start-up flags while it is running. Thus, you need not restart the ogated daemon if you change the configuration. However, if the net mask, subnet mask, broadcast address, or interface metric is changed, use the ifconfig(8) command to mark the interface down and then up 30 seconds later.
Subnet interfaces are supported. Subnet information is passed through interfaces to other subnets of the same network.
The ogated daemon listens to host and network REDIRECT signals. The daemon tries to take an action for its own internal tables. This action is parallel to the action the kernel takes on the REDIRECT signal.
In addition, the ogated daemon cancels (times out) all routes learned from REDIRECT signals in 6 minutes. The daemon then deletes the route from the kernel routing tables, which keeps the routing tables consistent.
No routing protocol announces routes learned from REDIRECT signals.
The ogated EGP code verifies that all networks sent and received are valid class A, B, or C networks as specified by the EGP. The ogated daemon does not contribute information about networks that do not meet EGP specifications. If an EGP update packet contains information about a network that is not class A, B, or C, the ogated daemon considers the update to be in error and ignores it.
RIP and interface metrics are translated to and from the internal time delays with the use of the following translation tables. The first two columns represent the time delay to RIP metric translation, while the second two columns represent the RIP metric to time delay translation.
|Minimum||Maximum||RIP Metric||RIP Metric||Time Delay|
Unpredictable results may occur when the ogated and routed daemons are run together on the same host.
Commands: kill, routed(8)
Files: ogated.conf(4) delim off