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gated(8) System Manager's Manual gated(8) NAME gated - gateway routing daemon SYNOPSIS /usr/sbin/gated [-c] [-C] [-n] [-N] [-t trace_options] [-f config_file] [trace_file] FLAGS Specifies that gated parse the configuration file for syntax, then exit. If there are no errors, gated leaves a dump file in /usr/tmp/gated_dump. You do not need root privileges to use the -c option. However, if you do not have root privileges, gated might not be able to read the kernel forwarding table and interface configuration. The -c option implies -tgeneral. All trace_option clauses in the configuration file are ignored. Specifies that gated parse the configuration file for syntax errors. If no errors occur, gated exits with a status 0. Otherwise, it exits with a status 1. You do not need root privileges to use the -C option. However, if you do not have root privileges, gated might not be able to read the kernel forwarding table and interface configuration. Specifies that gated not modify the kernel forwarding table. This is used for testing gated configurations with actual rout- ing data. Specifies that gated run as a user process. Nor- mally, if tracing to stderr is not specified and if the parent process is not 1, gated runs as a daemon process. This allows the use of an /etc/inittab-like method of invoking gated that does not have a PID of 1. Specifies a comma-separated list of trace options to be enabled on startup. If no flags are speci- fied, general is assumed. No space is allowed between this op- tion and its arguments. Use this to trace events that take place before the configura- tion file is parsed, such as determining the interface configu- ration and reading routes from the kernel. See gated.conf(4) for valid trace options and a more detailed explanation of tracing. Specifies an alternate configuration file. By default, gated uses /etc/gated.conf. If a trace file is specified on the command line, or no trace flags are specified on the command line, gated detaches from the terminal and runs in the background. If trace flags are speci- fied without specifying a trace file, gated assumes that tracing is desired to stderr and remains in the foreground. DESCRIPTION The gated routing daemon is based on Release 3.5 from the Cornell GateDaemon Project. The gated daemon replaces routed and egpup, and currently handles the RIP, BGP, EGP, HELLO, and OSPF routing protocols. The gated process can be configured to perform all routing protocols or any subset of them. SIGNAL PROCESSING You can use the following signals to control gated: Causes gated to reread the configuration file. The gated daemon first performs a clean-up of all allocated policy structures. All BGP and EGP peers are flagged for deletion and the configuration file is reparsed. If the reparse is successful, any BGP and EGP peers that are no longer in the configuration are shut down, and new peers are started. Gated attempts to determine if changes to existing peers require a shutdown and restart. OSPF is not capable of re- configuring, it is shutdown and restarted during a reconfigura- tion. This may have an adverse impact on the routing system. It should also be possible to enable/disable any protocol with- out restarting gated. Causes gated to write the current state of all tasks, timers, protocols, and tables to the /usr/tmp/gated_dump file. On systems supporting fork(), this is done by forking a sub- process to dump the table information. This does not affect gated's routing functions. On systems where memory management does not support copy-on-write, fork() causes the gated address space to be duplicated; this might cause a noticeable impact on the system. On systems not supporting fork(), the main process immediately processes the dump, which might impact gated's rout- ing functions. Causes gated to shut down. All tasks and proto- cols are asked to shutdown. Most terminate immediately, except EGP peers, which waits for confirmation. You might have to send SIGTERM once or twice if it this process takes too long to shut down. All protocol routes are removed from the kernel forwarding table on receipt of a SIGTERM. Interface routes, routes with RTF_STA- TIC set (from the route command where supported) and static routes specifying retain will remain. To terminate gated with the exterior routes intact, use SIGKILL. Causes gated to close the trace file. A subsequent SIGUSR1 reopens the trace file. This allows the file to be moved regularly. You cannot use SIGUSR1 if a trace file has not been specified or if tracing is being performed to stderr. Causes gated to rescan the kernel interface list for changes. FILES Contains gated status information. Contains the gated configuration information. Contains the gated process id (PID). RELATED INFORMATION Commands: arp(8), gdc(8), ifconfig(8), netstat(1), ospf_monitor(8), ripquery(8), routed(8), route(8) Functions: fork(2) Files: gated.conf(4), gated.proto(4), gated.control(4) delim off gated(8)