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netromd(8) [mojave man page]

NETROMD(8)						   Linux System Managers Manual 						NETROMD(8)

NAME

       netromd - Send and receive NET/ROM routing messages

SYNOPSIS

       netromd [-c] [-d] [-i] [-l] [-p pause] [-q quality] [-t interval] [-v]

DESCRIPTION

       For  a  NET/ROM	based network to operate correctly, a periodic broadcast of routing information needs to occur. Typically this occurs once
       every hour on every port which is expected to carry NET/ROM traffic. The purpose of netromd is to send and receive NET/ROM  routing  broad-
       casts.  To operate correctly a set of parameters that corresponds to each AX.25 port needs to be passed to the program. This information is
       encoded in a configuration file, by default which is /etc/ax25/nrbroadcast with each line representing one port, see the  manual  page  for
       nrbroadcast(5).

       To  cut	down  the  length  of  these routing broadcasts, only the information about the highest quality neighbour for a particular node is
       transmitted.  The transmission is also limited to those node that have a certain minimum value in their obsolesence count,  this  value	is
       decremented every time a routing broadcast is transmitted, and is refreshed by receiving a routing broadcast which contains that particular
       node.

       The value of the default quality is traditionally assigned a value that represents the quality of the radio links on that  port.  A  higher
       number  representing  better radio links with 255 (the maximum) reserved for wire connections. The practise in the UK is to set the default
       quality to a low value, typically 10, and manually set up the trusted neighbouring nodes in the neighbour list manually. The worst  quality
       for auto-updates value is a way to filter out low quality (ie distant) nodes.

       The verbose flag may be either 0 or 1, representing no and yes. By specifying no, the program will only generate a routing message contain-
       ing information about the node on which it is running, by specifying the yes option, all the information in the nodes routing  tables  will
       be transmitted.	The quality advertised for the other node callsigns on this machine may be set using the -q option.

       Between	each transmission netromd pauses for five seconds (default) in order to avoid flooding the channels that it must broadcast on. The
       value of this delay is settable with the -p option.

OPTIONS

       -c	       Forces strict compliance to Software 2000 specifications. At present this only determines how  node  mnemonics  with  lower
		       case  characters  will  be  handled.   With compliance enabled mixed case node mnemonics will be ignored. The default is to
		       accept node mnemonics of mixed case.

       -d	       Switches on debugging messages, the default is off. Logging must be enabled for them to be output.

       -i	       Transmit a routing broadcast immediately, the default is to wait for the time interval to elapse  before  transmitting  the
		       first routing broadcast.

       -l	       Enables logging of errors and debug messages to the system log. The default is off.

       -p pause        Sets the delay between transmissions of individual routing broadcast packets. The default is five seconds.

       -q quality      Sets the quality of the subsidiary nodes relative to the main node. The default is 255.

       -t interval     The time interval between routing broadcasts, in minutes. The default is 60 minutes.

       -v	       Display the version.

FILES

       /proc/net/nr_neigh
       /proc/net/nr_nodes
       /etc/ax25/axports
       /etc/ax25/nrbroadcast

SEE ALSO

       ax25(4), axports(5), nrbroadcast(5), netrom(4), nrparms(8).

AUTHOR

       Jonathan Naylor G4KLX <g4klx@g4klx.demon.co.uk>

Linux								  20 August 1996							NETROMD(8)

Check Out this Related Man Page

NRPARMS(8)						   Linux System Managers Manual 						NRPARMS(8)

NAME

       nrparms - Configure the NET/ROM interface.

SYNOPSIS

       nrparms -nodes node +|- ident quality count port neighbour [digicall...]

       nrparms -routes port nodecall [digicall...] +|- quality

       nrparms -version

DESCRIPTION

       This  program  is  used	to manipulate the routing tables of the NET/ROM network layer, or to get and set many of the network and transport
       layer parameters for the NET/ROM protocol. The program has three basic modes of operation, node	setting,  neighbour  setting  and  general
       parameter  setting. The syntax for the node and neighbour setting is taken from the original NET/ROM manual and is therefore not very UNIXy
       but should be familiar to those familiar with NET/ROMs or TheNet.

       To set up a new route to a NET/ROM node in the routing tables you must use the nodes option. All of the parameters are needed  to  add  the
       node. It is probably best to illustrate with an example:

	    nrparms -nodes GB7BPQ + NMCLUS 120 6 vhf G8ROU-3

       This  creates  a new route to a distant node with the callsign GB7BPQ and the alias NMCLUS, it has a quality of 120 (out of 255) and has an
       obsolescence count of six and packets for that node should be sent on the AX.25 port named vhf to my immediate neighbour G8ROU-3. The call-
       signs  of  the node and the neighbour may be the same. For example to set up the node G8ROU-3 which is also my immediate neighbour, I would
       use:

	    nrparms -nodes G8ROU-3 + MATLCK 200 6 vhf G8ROU-3

       If the ident of the remote node is not known, it is possible to add a node with a blank ident. To do this an ident of '*' must  be  entered
       on the command line. Because of the command line expansion that shells do, the * must be escaped by enclosing it in quotes.

       It  is  also  possible to remove a route to a distant node with the same command except that the + is replaced by a -. The other parameters
       must also be present. If the node has not other routes then the node will be deleted, and the neighbour node that the  connections  go  via
       may also be deleted if no other node route uses it, and it is not a locked neighbour entry.

       When  setting up a new node, a new neighbour entry may also be created. This will have a default value. For that neighbour to be meaningful
       in the automatic routing process, it must have a more reasonable entry in the neighbours list. To do this the routes option of the  command
       must be used.  An example:

	    nrparms -routes ax0 G8ROU-3 + 120

       This  will  create (or update) the neighbour entry for G8ROU-3 with a quality of 120 and it will be locked, it will not create a node entry
       for the neighbour. This quality will be used by the netromd(8) program when calculating route qualities via this neighbour. Normally once a
       neighbour  has  zero  node  routes  going via it, it will be deleted. Locking a neighbour prevents the deletion from occurring. To unlock a
       neighbour entry, the same command is used but with the + replaced by a -.

FILES

       /etc/ax25/axports
       /etc/ax25/nrports

SEE ALSO

       call(1), netrom(4), nrports(5), axparms(8), netromd(8), nrparms(8).

AUTHOR

       Jonathan Naylor G4KLX <g4klx@g4klx.demon.co.uk>

Linux								  25 January 1997							NRPARMS(8)
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