05-25-2018 07:59 AM - edited 03-08-2019 03:08 PM
I know when connecting similar devices you're suppose to use crossover cables.
My question is, what happens if I use a "normal" cat 5 where both ends are the same?
I'm connecting 2 Cisco 2611 to each other.
Solved! Go to Solution.
05-25-2018 08:13 AM
Hello,
unless your IOS supports auto MDIX (which means it detects the connecting cables and logically switches pinouts), a straight cable won't work.
For reference, bookmark the handy guide below:
https://www.computernetworkingnotes.com/ccna-study-guide/cabling-cisco-devices-guide.html
05-25-2018 08:13 AM
Hello,
unless your IOS supports auto MDIX (which means it detects the connecting cables and logically switches pinouts), a straight cable won't work.
For reference, bookmark the handy guide below:
https://www.computernetworkingnotes.com/ccna-study-guide/cabling-cisco-devices-guide.html
05-25-2018 08:22 AM
How can I check if they support auto MDIX? Is there a Cisco command?
Thanks,
Tony
05-25-2018 08:25 AM - edited 05-25-2018 08:25 AM
I found this, I assume it's the same for a router (if it's available on my Cisco 2611)
Switch# configure terminal
Switch(config)# interface gigabitethernet1/0/1
Switch(config-if)# speed auto
Switch(config-if)# duplex auto
Switch(config-if)# mdix auto
Switch(config-if)# end
05-25-2018 08:27 AM
Indeed, check for the interface command 'mdix auto'...
05-25-2018 08:43 AM
Thanks
05-25-2018 05:22 PM
2600 routers don't support MDI/MDI-X.
05-25-2018 07:13 PM
I guess that's why I can't ping the other router? Plus, no link lights are on even though I have no shut.
I will connect crossover cables.
05-25-2018 07:31 PM
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