21.1. TELNET resource

21.1. TELNET resource
	Chapter 21. TELNET - TELecommunication NETwork

The Abilis CPX TELNET resource includes Telnet server and client and it's present in the default configuration. It can be used for remote CPX management or to establish connections to remote devices which support the same protocol (i.e. Other routers).

21.1.1. TELNET resource parameters

Use d p telnet command to display the parameters of the resource. By typing d p telnet ? command it's possible to display the meaning of all parameters.

[16:55:28] ABILIS_CPX:d p telnet

RES:Telnet --------------------------------------------------------------------
Run    DESCR:Telnet_Server_and_Client_entities
       LOG:NO                 MCAU:NO                ps:128
       KEEPALIVE:30           LOGIN-TOUT:60
       - Server ---------------------------------------------------------------
       tcp-locport:23         PSER:TELNETS>          ser:3  
       AC:YES                 PWD:****************   DT:15 
       CDO:00                 UDO:CP                 PROFILE:NORMAL
       IPSRC:*                IPSRCLIST:#
       - Client ---------------------------------------------------------------
                              PCLI:TELNETC>          cli:3
       CDI:*                  UDI:*

Meaning of the most important parameters:

LOG: State changes log and alarm generation [NO, D, S, A, L, T, ALL] [+E] (D: Debug Log; S: System Log; A: Alarm view; L: Local audible alarm; T: SNMP traps; +E: Extended Log of state changes, see ref. manual).
MCAU: Force cause 0x00 in clear packets [NO, YES].
ps: Packet size [16..2048 bytes].
KEEPALIVE: KeepAlive activation flag [NO, 15..65535 sec.]. Activates and sets the value of the “Keep-Alive” time-out; the “Keep-Alive” procedure, by sending the simple packets, keeps the TCP connection “alive” even if any data is not exchanged.
LOGIN-TOUT: Login timeout [10..600 sec.].
tcp-locport: Local TCP port for servers and default remote TCP port for clients [1..65535].
PSER: Prompt of the server [Alphanumeric]. The prompt of the commands interpreter of the Server TELNET resource.
ser: Maximum number of servers [0..255].
AC: Server auto-connect flag [NO, YES]. The default value is YES. The TELNET Server automatically generates a connection request, using information configured in CDO and UDO, whenever it receives a login request from a Client TELNET process.
PWD: Authentication password. From 0 up to 16 ASCII characters. Spaces are not allowed.
DT: Inactivity disconnect time-out [0..255 min.].
CDO: Called NUA for outgoing X.25 BSVC call [0..9, #].Called address field of the TELNET Server outgoing call. The parameter's default value (CDO:00).
UDO: User data for outgoing X.25 BSVC call [0..9, a..z, A..Z, #]. User data field of the TELNET Server outgoing call. The parameter's default value (CDO:CP).
PROFILE: X.25 Profile [NORMAL, TRANSPARENT].
IPSRC: Incoming requests: accepted source IP address [*, 1-126.x.x.x, 127.0.0.1, 128-223.x.x.x].
IPSRCLIST: Incoming requests: list of further accepted source IP addresses [#, IP/IR/RU/MR listname].
PCLI: Prompt of the client.
cli: Maximum number of clients [0..10].
CDI: Called NUA to match incoming X.25 BSVC call [0..9, *].
UDI: User data to match incoming X.25 BSVC call [0..9, a..z, A..Z, *].

The following command allows the administrator to change the configuration of the resource:

s p telnet parameter:value...

	Caution
	To activate the changes made on the upper case parameters, execute the initialization command init res:telnet; while to set act the changes made on the lowercase parameters a save conf and an Abilis restart are required (i.e. With warm start command).


Chapter 21. TELNET - TELecommunication NETwork		21.2. TELNET diagnostics and statistics