Command Prompt Response

Greetings,

I am trying to write a batch file which will use SSH to connect with a managed switch. Once connected, I would like to turn the POE on or off for a single port on the switch. Here is the command prompt routine. My input is in bold letters and RETURN is my use of the enter key:

C:\Users\goofy>plink admin@192.168.xx.xxx
Using username "admin".
Further authentication required
admin@192.168.xx.xxx's password: password

Access granted. Press Return to begin session.
RETURN

SX3206HPP>enable
RETURN
SX3206HPP#config
RETURN
SX3206HPP(config)#interface ten-gigabitEthernet 1/0/4
RETURN
SX3206HPP(config-if)#power inline supply enable
RETURN
SX3206HPP(config-if)#end
RETURN
SX3206HPP#exit
RETURN
SX3206HPP>exit
RETURN
C:\Users\goofy>

I would like to convert this to a batch file, where any required input is part of the batch file

I use several batch files, but I am new to networking and have never responded to a password with data typed in the batch file. Also, the use of the enter key is required several times. Thanks in advance for any help you can offer.

Graham

Windows 11 24H2 26100.3476

While you could feed a sequence of ECHO lines piped through plink, just use plink's command-line options.

Thanks Garlin,

I can't get past the first request for a carriage return. There are seven additional carriage returns. Any idea how I deal with that? Thanks

I'm guessing this is a Cisco device, which is finicky about CR/LF?
There's an extra line after the last "exit", but this forum software likes to eat any trailing CR's in a quoted post.

commands.txt

Thanks again garlin,

I am a bit embarrassed. I didn't bother listing the model. It is a TP-Link switch. TL-SX3602HPP. My apologies

Hi garlin,

This worked! Thank you so much. The routine ran and the device attached to port 4 turned on. Adding the command file did the trick. Here is the Output:

Looking up host "192.168.50.110" for SSH connection
Connecting to 192.168.50.110 port 22
We claim version: SSH-2.0-PuTTY_Release_0.83
Connected to 192.168.50.110 (from 192.168.50.187:50806)
Remote version: SSH-1.99-IPSSH-6.6.0
Using SSH protocol version 2
No GSSAPI security context available
Doing Diffie-Hellman key exchange using 4096-bit modulus and hash SHA-512 (unaccelerated) with standard group "group16"
Server also has ssh-dss host key, but we don't know it
Host key fingerprint is:
ssh-rsa 1024 SHA256:6axN9M10pB/8jUcmzZ0aA897z5n9ObiIaT/+NCbNlyk
Initialised AES-256 SDCTR (AES-NI accelerated) outbound encryption
Initialised HMAC-SHA-256 (SHA-NI accelerated) outbound MAC algorithm
Initialised AES-256 SDCTR (AES-NI accelerated) inbound encryption
Initialised HMAC-SHA-256 (SHA-NI accelerated) inbound MAC algorithm
Using username "admin".
Further authentication required
Further authentication required
Sent password
Access granted
Opening main session channel
Opened main channel
Allocated pty
Started a shell/command

SX3206HPP>enable
Main session channel closed
Received SSH2_MSG_CHANNEL_DATA for nonexistent channel 256
FATAL ERROR: Received SSH2_MSG_CHANNEL_DATA for nonexistent channel 256
Press any key to continue . . .

Does this line (Received SSH2_MSG_CHANNEL_DATA for nonexistent channel 256) indicate that I didn't end the session correctly? Last question, should this also work if I connect using the key file pair I have setup?

Thanks again,
Graham

gfd said:

SX3206HPP>enable
Main session channel closed
Received SSH2_MSG_CHANNEL_DATA for nonexistent channel 256
FATAL ERROR: Received SSH2_MSG_CHANNEL_DATA for nonexistent channel 256
Press any key to continue . . .

Does this line (Received SSH2_MSG_CHANNEL_DATA for nonexistent channel 256) indicate that I didn't end the session correctly? Last question, should this also work if I connect using the key file pair I have setup?

Thanks again,
Graham

Click to expand...

It's probably annoyed you "hung up" the connection. I believe there's an "-i [key file]"

This also worked

(
echo enable
echo config
echo interface ten-gigabitEthernet 1/0/4
echo power inline supply disable
echo end
echo exit
echo exit
echo disconnect
) | plink -v 192.168.50.110 -l admin -pw f*********** -P 22
PAUSE

That was going to be my original answer, but wasn't sure if the CR/LF was going to be a problem. Since UNIX/Linux-based devices (like many network boxes) don't always agree with Windows.