transport preferred none / Transport Input SSH

[brandon.m.strode1]

I am currently updating routers and the current routers on my network were configured with the ip domain name command as well as the no ip domain lookup.  From doing my research I found that it is pointless to have both commands on the router.  I also learned that if you use transport preferred none on the line commands it will disable the dns lookup when you mistype a command which is what I would love to have.  However the lines have transport input ssh already configured.  Is it possible to run both commands?  What is the best practice in this situation?

[Ben Walters · Accepted solution]

Both transport input ssh and transport preferred none can be applied to VTY lines and you can still access the device remotely via SSH.

[brandon.m.strode1]

Thanks for the quick response, that was exactly what I needed to know.  

[SachinAhire96056]

Can the device be accessible through telnet if we upgrade the ASR router on version asr1001x-universal.03.16.02.S.155-3.S2-ext.SPA.bin if "transport preferred none" is there?

[Georg Pauwen]

Hello,

you can have 'transput preferred none' configured and still TELNET to the device (obviously make sure you have 'transport input telnet' configured).