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Cisco - how to find IOS version and configure SNMP

Posted on 2006-06-27
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Last Modified: 2008-01-09
I'm pretty much a cisco newbie, and I have two things that I need to do on our three cisco routers, and 4 switches.

1.  I need to find out the amount of memory installed, and the IOS version.  If I remember right, I just console in and type:
sh ver
or something to that effect.  Does anyone remember the exact command?

2.  I need to turn SNMP on, and change the read only string from public to our internal one.  Is there a set of commands that can be used on my catalyst switches, and my routers to simply enable this?

Thanks!
Terry
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Question by:terrymason
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Expert Comment

by:JFrederick29
ID: 16992670
1. You got it.  "show version" will display the IOS version and memory installed.

2.  To enable SNMP "snmp-server community <string> RO
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Author Comment

by:terrymason
ID: 16992756
ok, i think i have it.  How do I actually show the snmp read / right community strings that exist?

Also, how do I deactivate the private rw string?

show config gives me this:

snmp-server community private RW
snmp-server community public RO
!
line con 0
 transport input none
 stopbits 1
line vty 0 4
 password TERRY'S-STRING
 login
line vty 5 15
 password TERRY'S-STRING
 login
!
end
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Assisted Solution

by:Don Johnston
Don Johnston earned 200 total points
ID: 16992813
When you do a show version, the RAM will be shown in the two "pools" (seperated by a slash). Add the two together to get the total RAM installed.

To remove a command, type in the command preceeded by "no"

no snmp-server community private RW
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Author Comment

by:terrymason
ID: 16992850
ahh, I see do I need to remove the current snmp rules before adding new ones?  I noticed that when I typed

snmp-server community public XXXXXX

and then did a show config, it gave the response above.  Do I need to reboot before my changes go into effect, or did I do something wrong?
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Accepted Solution

by:
JFrederick29 earned 300 total points
ID: 16992990
You are replacing the word "public" with your string XXXXXX.

no snmp-server community private RW
no snmp-server community public RO

snmp-server community XXXXXX RO

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by:terrymason
ID: 16993891
thanks guys!
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Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

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