srtconfig(1) [netbsd man page]

SRTCONFIG(1)						    BSD General Commands Manual 					      SRTCONFIG(1)

NAME

     srtconfig -- configure srt interfaces

SYNOPSIS

     srtconfig srtX
     srtconfig srtX N
     srtconfig srtX del N
     srtconfig srtX add srcaddr mask dstif dstaddr
     srtconfig srtX set N srcaddr mask dstif dstaddr

DESCRIPTION

     srtconfig configures, or queries the configuration of, srt(4) interfaces.	An srt(4) interface parcels packets out to other interfaces based
     on their source addresses (the normal routing mechanisms handle routing decisions based on destination addresses).  An interface may have any
     number of routing choices; they are examined in order until one matching the packet is found.  The packet is sent to the corresponding inter-
     face.  (Any interface, even another srt interface, may be specified; if the configurations collaborate to cause a packet to loop forever, the
     system will lock up or crash.)

     When run with only one argument, srtconfig prints the settings for the specified interface.

     When run with two arguments, srtconfig prints the settings for the routing choice whose number is given as the second argument.

     The form with 'del' deletes a routing choice, identified by its number.  Other choices with higher numbers, if any, will be renumbered
     accordingly.

     The 'add' form adds a choice; the other arguments describe it, and are documented below.  The new choice is added at the end of the list.

     The 'set' form replaces an existing choice, given its number.  The other arguments describe the new choice which is to replace whatever cur-
     rently exists at the given number N.

     A choice is described by four pieces of information: a source address and mask, which are used to determine which choice an outgoing packet
     uses, a destination interface, and a destination address for the new interface.  The source address and mask are specified like any Internet
     addresses (for convenience, the mask may instead be specified as a '/' followed by a small integer, CIDR-style; note that in this case the
     mask must still be a separate argument; it cannot be appended to the end of the source address argument).

     Each srt interface also has ordinary source and destination addresses which are set with ifconfig(8) like any other interface; these should
     not be confused with any of the above.

AUTHORS

     der Mouse <mouse@rodents.montreal.qc.ca>

BSD
								  August 21, 2000							       BSD

Check Out this Related Man Page

IPROUTE(3)						     Library Functions Manual							IPROUTE(3)

NAME

       iproute - Internet route table manager

SYNOPSIS

       bind -a #P /net

       /net/iproute
       /net/ipifc

DESCRIPTION

       The  iproute  device  allows the specification of routes for families of IP addresses.  It maintains a kernel-resident routing table for IP
       addresses used by TCP, IL and UDP.  Each route consists of a destination IP address, an IP mask, and an IP gateway address.   Every  packet
       sent  by  the  system is routed according to the route table.  An address matches the route table entry when a packet's destination address
       matches the table destination address under the mask. When a match is found, the packet is sent to the gateway IP address. If there  is	no
       match,  the  packet is sent with the original destination address.  If there are several matches, the one whose mask has the fewest leading
       zeros is chosen.  (Because of the definition of IP masks, this mask preserves the largest portion of the address and is therefore the  most
       specific.)  This is forced by storing the routes in decreasing number of ones order and returning the first match.  The default gateway has
       no ones in the mask and is thus the last matched.

       Reading iproute reports the current routes entered in the table.  Writing control messages to iproute edits the table.  Route  entries  are
       made by writing a string of format

	      add ipdest mask ipgateway

       Entries are deleted by writing a string of format

	      delete ipdest mask

       The whole table can be cleared by writing the string

       For example, to install a gateway address to accept all IP packets from a machine:

	      % echo 'add 0.0.0.0 0.0.0.0 131.107.1.5' > /net/iproute
	      % cat /net/iproute
	      0.0.0.0 & 0.0.0.0 -> 131.107.1.5

       Reading	ipifc  reports	the  current  IP interfaces being used, one line per interface, showing the device, the maximum transfer unit, the
       local address, the network mask, and the network address.

SOURCE

       /sys/src/9/port/deviproute.c

SEE ALSO

       ip(3), ipconfig(8)

																	IPROUTE(3)

Linux and UNIX Man Pages

srtconfig(1) [netbsd man page]

Check Out this Related Man Page