how to manage a layer 2 switch

[tachyon05]

My understanding is that even layer 2 switches like the Cisco 3500XL can have 1 IP address for management.  However, I cannot seem to figure out how to configure it to get it working in a router on a stick setup.  I can manage the router through SSH, but I cannot SSH to the switch.  Any example on how to configure this?  Thanks           

[Alessio Andreoli]

Hi Tachyon,

you definitely can set an ip below your SVI (vlan interface) for management but for SSH you need to have the proper IOS.

conf t

ip ssh ?

very likely the IOS is too old for SSHv2.. maybe you can manage for SSHv1.5

For management it is just :

vlan data

vlan 10 name management

apply

exit

!

!

conf t

int vlan 10

description Management VLAN

ip address 1.1.1.1 255.255.255.0

end

copy run start

!

And then you remember to keep VLAN 10 in the trunk back to your core/distribution.

Hope it helps

Alessio

Post the precise IOS

[tachyon05]

the switch is running

c3500XL-c3h2s-mz.120-5.WC3b.bin

which was complied on 15-Feb-02, and Cisco doesn't offer downloading of newer IOS of course since this is EOL.

when i do the IP SSH ? command on the router, i get the option of 1 or 2 (for the ssh version), however, on the switches the i cannot even execute the IP SSH command.  additionally, while i was able to configure interface vlan 254 (the one i use for management), it always shows administratively down even after i do no shut.  it's like the "no shut" i execute has no affect.

Thanks

[Alessio Andreoli]

Hi Tachyon,

That means you have no SSH on your switches at all. It is not matter of configuration but to upgrade the IOS to the most recent that your machines can support. Although I had no time to check this vlan issue, remember that 10 years ago the defaults where different and remember to check that all the encapsulation are dot1q. By default on a trunk it was first negotiated isl and then dot1q.

If you posted some config or error messages I could help more.

Take care

Alessio

Sent from Cisco Technical Support iPad App