Basic configuration for snmp

[bhofmann]

Hello,
i am new on this forum, and have a simple question. We are working with HP Node Manager, and want add Omniswitch 6850 to our map, but we didnot get any values back, when we try to query the switch with snmp. What are the absolut basics for snmp access what we must configure. Or where can i found the documentation for
these steps?

Best Regards
Berthold

[benny]

Well,

The basic configuration steps are described in the user-manual which should have been delivered with your switch (Either a CD or a link to download manuals).

Basically you need to ...:

Know which SNMP version you want -> v1, v2 or v3

Give the snmp application permission to match a user against the local database
-> aaa authentication snmp local

Create a user with snmp rights - (thats a v3 user)
-> user snmpuser password snmp1234 read-write all sha+des

Verify that your user has SNMP allowed == Yes
-> show user

Configure your snmp station entry
-> snmp station 172.16.0.1 162 snmpuser v3 enable

Configure your HP OpenView to use the above information...
(You should know the exact steps here...)

Let me know if you need more pointers ...

-benny

[MWLosRios]

To add to Benny's advice, if you want to use SNMP versions 1 or 2c, you'll need to change the default security settings for SNMP. If you want just read-only access via SNMP 1 or 2c, you need to enter

snmp security authentication set

This specifies that authentication (via MD5 or SHA) is required only for SET requests. If you want to be able to do SNMP SET requests, you'll need even less security:

snmp security no security

Sounds scary! After that, you need to define a community map that connects your user to an snmp community string:

snmp community map readcommunity user snmpuser on
snmp community map mode on

Now you can access the switch via SNMP v1 or 2c, using the community string "readcommunity".

[crosscheck]

Dear guys,

if i want to discover my omni from 5620 SAM, should i set the ip-loopback OMNI ?

here the toplogy:
OMNII 6850 --> 7750 --> 5620 SAM

i can ping to 7750 and SAM , vice versa.

need ur help..

[cedric1]

hello

I have read that 6850 is supported in SAM.

No mandatory to configure loopback on 6850 for snmp access.

But if you confugure one, and is pingable from SAM, you can use it.

Cedric