
netrom <subcommands>

     These commands influence netrom behavior.

    netrom acktime [<milliseconds>]

     Displays or sets the ack delay timer, similarly to ax25 t2.
     Default is 3000ms (i.e. 3 seconds).
     
     
    netrom alias <aliascall>

     This sets the netrom alias call for this station. Other stations
     can connect to the ax25 callsign and to the Netrom alias (when
     set). The alias is broadcast with a Netrom broadcast.  If netrom
     is not activated, you can use the 'ax25 alias' command to set the
     alias callsign, such that users can still connect to the alias,
     even though netrom activities are not allowed.
     
     
    netrom bcnodes <iface>

     Initiates an immediate broadcast of nodelist on <iface>. Verbose
     behavior is controlled by the 'netrom interface' command.
     
     
    netrom bcpoll <iface>

     Initiates a poll sent to the named interface. This poll will
     request a netrom routes broadcast from other nodes, so that the
     routing table can be updated. This is automatically done any time
     an interface is activated (or changed) for netrom.  This should
     speed up route discovery at startup.  This is NOT currently
     implemented in Thenet or Net/Rom nodes, but works with Data
     Engines running JNOS40 or with systems running JNOS v1.05 or
     later.
     
     
    netrom call <call>

     Displays or sets the call to be used by the netrom interface.
     Note: this is a shortcut for the 'ifconfig netrom linkaddress'
     command.  It defaults to the 'ax25 mycall' value.
     
     
    netrom choke [<milliseconds>]

     Display or set the time breaking a send choke. Choke is the
     term netrom  uses for flow control conditions. Default is 180000
     ms (180 seconds.)
     
     
    netrom connect <node>

     Starts a new Jnos session and attempts to establish a netrom transport
     connection with <node>, which must be a known node call or alias.


    netrom derate [ON|off]

     Display or set automatic derating of netrom routes on link
     failure.  Default is on.
     
     
    netrom g8bpq [on|OFF]

     Display or set the G8BPQ-emulation behaviour.  If set, transport
     layer conreq frames carry two extra bytes to indicate round-trip
     time, and conack frames have one extra byte to contain TTL (hopcount).


    netrom hidden [on|OFF]

     Display or set the hidden node flag.  Nodes with aliases starting
     with the '#' character are displayed using the command 'N *'.
     Default is OFF.
     
     
    netrom interface [<iface> <quality> [<min_bc_quality>]]

     Activate <iface> as a netrom interface.  <quality> can be between
     1 and  255. If <min_bc_quality> is not specified, the current 'netrom
     minquality' value is used.  If no <iface> is specified, then all
     netrom interfaces are displayed with their current quality and
     min_bc_quality values.

     If <min_bc_quality> is zero, only our netrom call will be listed
     in broadcasts from this interface.  Otherwise, additional nodes are
     included in broadcasts, provided their quality equals or exceeds
     <min_bc_quality>.

     If the paclen of the interface is smaller then the netrom mtu +
     20, then the netrom mtu will be set to paclen-20 . This is to
     avoid fragmentation, causing incompatibilities with non-NOS
     based Netrom nodes. See the 'ifconfig <iface> paclen' command for
     more.
     
     If <iface> has already been activated as a netrom interface, re-
     issuing the command will set <quality> and <min_bc_quality> to the
     new values.
     
     Each time an interface is activated or changed, a broadcast poll
     will be sent out on the interface.  This minimizes the route
     discovery time at startup, and will update routes when the
     interface quality has changed.
     
     
    netrom irtt [<milliseconds>]

     Display or set the initial round trip time.  Default is
     45000ms, i.e. 45 seconds.
     
     
    netrom kick <nrcb>

     Give the control block a kick to get activity going again.
     

    netrom load

     Retrieves the last set of netrom destination data saved with the
     'netrom save' command.
     
     
    netrom minquality [<minqual>]

     Display or set the minimum quality for recognizing a node
     entry. Entry's below this value are not considered valuable for
     usage. Default is 10.  You are strongly urged to set this value
     much higher, so as to minimize the space needed to store the nodes
     list.  A consequence of too many nodes listed is memory depletion,
     leading to lockups or reboots.
     
     
    netrom neighbor

     Display all known netrom neighbors.
     
     
    netrom nodefilter <subcommands>

     Manipulate node filtering.     
     
       netrom nodefilter add <neighbor> <iface>

        Add <neighbor> on port <iface> to the filter table.  See the
        'netrom nodefilter mode' command to determine the manner to
        handle node updates from <neighbor>.
        
        
       netrom nodefilter mode [none|accept|reject]

        Display or set the initial node filter scheme. 'none' accepts
        all netrom routes and is the default. 'accept' accepts routes
        only from nodes defined with the 'netrom nodefilter add'
        command. 'reject' does not accept routes from any nodes
        defined with 'netrom nodefilter add'
        
        
       netrom nodefilter drop <neighbor> <iface>

        Delete the node <neighbor>  on interface <iface> from the
        filter table.
        
        
    netrom nodetimer [<seconds>]

     Display or set the interval to transmit the nodes list. If
     you want to use other than the default, you must first attach the
     netrom interface with 'attach netrom' and then set the new
     nodetimer value.  Default is 1800 seconds (half an hour).
     
     
    netrom obsotimer [<seconds>]

     Display or set the time a node obsolescence count gets
     decremented.  If you want to use other than the default, you must
     first attach the netrom interface with 'attach netrom' and then
     set the new obsotimer value.  Default is 2100 seconds.


    netrom promiscuous [OFF|on]

     Enables nodes with a path quality greater than defined with
     minquality.  If on, all nodes are received regardless of
     nodefilter mode.  Default is off.
     
     
    netrom qlimit [<nnnn>]

     Display or set the maximum queue limit for choke to occur.
     Similar to ax25 window.  Default is 2048 bytes.
     
     
    netrom reset <nrcb>

     Remove the control block.  You can find the control block with
     the 'netrom status' or 'socket' commands.
     
     
    netrom retries [<nn>]

     Display or set the maximum number of retries on connect,
     disconnect or data.  Default is 10.
     
     
    netrom route <subcommands>

     Netrom routing commands. Routes can be marked as 3 types in the
     various route displays:
     
        'P' - a permanent route set with the 'netrom route add'
        command
        'B' - a route received through a nodes broadcast from a
        neighbor node
        'R' - a recorded route from an incoming packet from a not
        previously known netrom node
     
     
       netrom route add <alias> <call> <iface> <quality> <neighbor>

        Add a permanent netrom route. The new route is to netrom
        system <alias> with call <call>, and the route is on interface
        <iface> with quality <quality> via the neighbor <neighbor>.
        
          netrom route add salem af7s-1 port1 178 k7uyx-1

          A route to a direct neighbor looks like:
        
          netrom route add crv k7uyx-1 port1 192 k7uyx-1
          
          
       netrom route drop <destination> <neighbor> <iface>

        Delete the netrom route to call <destination> via neighbor
        <neighbor> on <iface>.
        
        
     netrom route info [<destination>]

        Display the route a packet would take to get to <destination>.
        If <destination> is not given, information about all known
        netrom nodes is displayed.  'netrom route info' and 'netrom
        route info *' are equivalent commands.
        
        
    netrom save

     Saves (i.e. writes) the netrom node table to Netromfile (default is
     /netrom.sav) for later use by the 'netrom load' command.
     
     
    netrom split <node>

     Same as a 'netrom connect <node>', except a split-screen is used so
     that keyboard input appears in its own window.


    netrom status

     Display all netrom connections.
     
     
    netrom tdisc [secs]

     Display or set the Netrom Link "redundancy" timer.  Value is
     in seconds.  When no data exchange has happened during this time
     the link is reset and closed.  Default is 0 seconds (ie, disabled).
     
     
    netrom timertype [exponential|LINEAR]

     Displays or sets the type of backoff used on netrom retries.
     Default is linear.
     
     
    netrom ttl [<hops>]

     Display or set the maximum number of hops a frame might take
     before being discarded.  Default is 10.
     
     
    netrom user <usercall>

     Display or set the user call to be used by 'netrom connect'.
     The default call is the ax25 mycall.


    netrom window [<frames>]

     Display or set the size of the sliding window. This is the
     largest send and receive window we might negotiate.  Default is 4.


