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Can a WLC have multiple SNMP Trap Receivers with the same cummunity string?

Answered Question
Aug 14th, 2013
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My Monitoring team want me to send traps to three different trap collectors with the same SNMP Community string.


I have 2106's, 2504, 4400's, 5500's, 7510 all running either version 6 or 7.


Is this possible on a Wireless controller? If so, how?

Correct Answer by George Stefanick about 4 years 4 days ago

Read this from my friends blog ..


http://mrncciew.com/2013/02/14/configuring-snmp-on-wlc/


"

Also you can configure SNMP trap receiver where WLC can send its snmp trap messages.  Community Name means SNMP trap receiver name & that does not have any significance like snmp community value."



It doesnt appear to have the same significants .. But I havent tested it



__________________________________________________________________________________________
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
__________________________________________________________________________________________
‎"I'm in a serious relationship with my Wi-Fi. You could say we have a connection."

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Erwin Salazar Wed, 08/14/2013 - 09:51
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Yes, this is certainly possible.  From the WLC perspective just set up the community string you want to use:

http://www.cisco.com/en/US/docs/wireless/controller/7.0MR1/configuration/guide/cg_controller_setting.html#wpmkr1120672


On your trap receivers simply add the same community string and controller IP address.


Cheers,
Erwin

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George Stefanick Wed, 08/14/2013 - 09:59
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Another consideration configure trap receiver on the WLC. Add the servers IP addresses collecting the traps and the traps will follow.


__________________________________________________________________________________________
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
__________________________________________________________________________________________
‎"I'm in a serious relationship with my Wi-Fi. You could say we have a connection."

ROBERT TILLMAN Wed, 08/14/2013 - 10:00
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Here is my confusion. When I add a Trap receiver on the controller, it asks for "Community String" and "IP Address". It will not allow me to have 2 trap receivers with the same community string.


When I setup a template in PI 1.3, it has a field for "Template Name" and "IP address". Template Name must be unique.


When I apply the template to the controller, it takes the template name and puts it as the community string on the controller.


Is the WLC sending the trap with the the text in the community string field as the community string or is it not sending a community string?

Correct Answer
George Stefanick Wed, 08/14/2013 - 10:03
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  • Purple, 4500 points or more
  • Community Spotlight Award,

    Best Publication, October 2015

Read this from my friends blog ..


http://mrncciew.com/2013/02/14/configuring-snmp-on-wlc/


"

Also you can configure SNMP trap receiver where WLC can send its snmp trap messages.  Community Name means SNMP trap receiver name & that does not have any significance like snmp community value."



It doesnt appear to have the same significants .. But I havent tested it



__________________________________________________________________________________________
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
__________________________________________________________________________________________
‎"I'm in a serious relationship with my Wi-Fi. You could say we have a connection."

George Stefanick Wed, 08/14/2013 - 10:04
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  • Purple, 4500 points or more
  • Community Spotlight Award,

    Best Publication, October 2015

Please respond back with your results. Intertested in hearing ..



__________________________________________________________________________________________
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
__________________________________________________________________________________________
‎"I'm in a serious relationship with my Wi-Fi. You could say we have a connection."

Abhishek Abhishek Wed, 08/14/2013 - 10:37
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Hello,


As per your query i can suggest you the following solution-


Yes, WLC can have multiple SNMP Trap Receivers with the same community string.

Hope this will help you.

ROBERT TILLMAN Wed, 08/14/2013 - 13:04
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I created 3 different templates in PI and pushed them out to the WLC's. On the controller the template name is in the field of community string.


I am waiting for my monitoring guy to tell me if he's getting traps on all 3 of his collectors. When I get then info I'll pass it on.


Thanks guys.

ROBERT TILLMAN Thu, 08/15/2013 - 12:10
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My monitoring team is reporting that they are getting the traps from the controllers. 


It would be very helpful if PI and the WLC would match on their terms and location of things. I think this is the biggest challenge that I have with PI now.


Thanks for your help!!

George Stefanick Thu, 08/15/2013 - 12:52
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  • Purple, 4500 points or more
  • Community Spotlight Award,

    Best Publication, October 2015

Excellent .. Thanks for supporting the rating system !



__________________________________________________________________________________________
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
__________________________________________________________________________________________
‎"I'm in a serious relationship with my Wi-Fi. You could say we have a connection."

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