Datatek UMI - Manual (Page 45)

U N I V E R S A L M E D I A T I O N I N T E R F A C E ( U M I ) U S E R M A N U A L
04/30/09 45
5.25 CLOSED USER GROUP (CUG) ADMINISTRATION
Syntax: cug <CUG_num>[ipaddr=<IP address>][submask=<IP submask>]
The cug command is only visible when the unit is logged in. The <CUG_num> parameter is the
closed user group identifier used to assign the CUG to a virtual port (with the vport command),
and may be a value between 1 and 32, inclusive. The CUG may also be assigned to the telnet
console (with the
console command), or the SNMP interface (with the SNMP command).
Each CUG is specified by a single IP address and subnet mask pair. The ipaddr parameter is an
address of an endpoint (or base address of a group of endpoints) to be allowed into the group.
The
ipaddr value ANDed with the submask value must agree with the caller’s or destination’s IP
address ANDed with the same submask for a call to be allowed to or from a virtual port to which
the CUG is assigned. Depending on the submask value, this allows an individual
(submask=255.255.255.255), intermediate, or network-wide level of authorization.
Setting the ipaddr value to 0.0.0.0 deletes any prior configuration for the <CUG_num>. A
<CUG_num> may not be deleted if it is currently assigned to any virtual port.
A list of all configured CUGs is reported via the vfy cug command. The list of closed user groups
associated with a given virtual port is presented in response to the vfy vport command.
5.26 DISPLAY CONNECTIONS
Syntax: dconn
The dconn command is only visible when the unit is logged in. The command displays the
connections between virtual ports and their destinations. Only active virtual ports are displayed.
5.27 DISCONNECT PORT
disc VPORT [ <port_num> ] [ CONSOLE ]
The disc command is only visible when the unit is logged in. The value of <port_num> is
between 1 and 504, inclusive. If the specified virtual port is in service, any existing circuit
spanning it will be dropped. This is useful in IP networks when the remote peer vanishes due to a
remote reboot or a network error.
The value of console will allow the disconnect of the telnet console from itself or the serial
console interface. This is useful when the telnet console peer is not responding.
This command is password protected. The administrative password will be prompted and
echoed with asterisks.
5.28 PING
ping <IP address> [ Interval Seconds ]
The ping command is only visible when the unit is logged in. The command has a single
argument, the IP address that is to be pinged.
The ping command formats an ICMP echo request packet which is then sent to the IP Address
specified. The device with that address will issue an ICMP echo reply to the request. This is
required of all IP implementations by RFC 791. If a reply is received, an informational alarm is
issued on the UMI console. If no reply is received, there is a timeout message that will appear for
that ICMP echo request.