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Beginner

Transport preferred

Hi everyone,

i have a doubt in command transport preferred.

What is the function of this command.since the command Transport input and Transport output doing the same thing,then why the command Transport preferred is needed.

2 REPLIES 2
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Beginner

Hi Sathya,

 

If none of the protocol was configured for incoming and outgoing connections (Transport input and Transport output), Then it will use the protocol mentioned in transport preferred command.

 

Please find the below table for your reference.

 

Command
Purpose

Router(config-line)# transport input {lat | mop | nasi | none | pad | rlogin | ssh | telnet | v120}

Defines which protocols can be used to connect to a specific line.

Router(config-line)# transport output {lat | mop | nasi | none | pad | rlogin | telnet | v120}

Determines the protocols that can be used for outgoing connections from a line.

Router(config-line)# transport preferred {lat | mop| nasi | pad | rlogin | telnet | v120}

Specifies the protocol for the router to use if the user did not specify a protocol.

Router(config-line)# transport preferred none

Prevents errant connection attempts.

 

 

Regards,

Selva

Highlighted
Participant

Hello Sathiyamoorth,

Transport preferred
Transport preferred command is used to specify which transport protocol is used on connections whereas the transport input and transport output commands are used to explicitly specify the protocols allowed on individual lines for both incoming and outgoing connections.

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