Problems Connecting to PowerConnect 6224

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VN-Ken
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Joined: Sun Nov 19, 2006 11:54 pm

Problems Connecting to PowerConnect 6224

Post by VN-Ken »

Hello,

I have been trying since I got the switch to have it so that cacti will graph bandwidth usage by port, and I have setup the communities, and user/pwd within the switch for snmp, but it continues to say "SNMP error".

Is there anything special I need to do to get things working here? This is a Dell PowerConnect 6224.

Please help!

Thanks
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streaker69
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Post by streaker69 »

Not alot of information to go on, but here's a couple of basic suggestions:

1. SNMP community strings are case sensitive. Make sure they're matched exactly in Cacti and your Switch.

2. If you're using SNMP v2 or v3 on Cacti, set it back to v1 and see if you can connect after verifying step 1.

3. Have you tried snmpwalk?
VN-Ken
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Post by VN-Ken »

What information do you need?

As well, the community string is correct, and matches on both the switch and cacti. I'll try 2 and i have snmpwalk installed but do not know what it is used for or how I would make cacti use it.
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gandalf
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Post by gandalf »

Please read fmangeant's nice snmp howto. It's sticky (HowTo Forum)
Reinhard
VN-Ken
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Post by VN-Ken »

Ok, I'll have a look.

Thanks.
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fmangeant
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Post by fmangeant »

Hi

do you know if this switch is running SNMP version 1, 2 or 3 ? And is it running on UDP port 161 ?

If it's running SNMP version 1 or 2, can you try this (from a Unix host, use Getif if you're on a Windows host) :

Code: Select all

$ snmpwalk -v 1 -c public xx.xx.xx.xx sysName
If it's running SNMP version 3, try this :

Code: Select all

$ snmpget -v 3 -l AuthNoPriv -u myuser -A mypassphrase xx.xx.xx.xx sysName
If these commands fail, maybe you have a routing / firewall problem.
You can use nmap to check this :

Code: Select all

# nmap -sU -p 161 xx.xx.xx.xx
PORT    STATE         SERVICE
161/udp open|filtered snmp
[size=84]
[color=green]HOWTOs[/color] :
[list][*][url=http://forums.cacti.net/viewtopic.php?t=15353]Install and configure the Net-SNMP agent for Unix[/url]
[*][url=http://forums.cacti.net/viewtopic.php?t=26151]Install and configure the Net-SNMP agent for Windows[/url]
[*][url=http://forums.cacti.net/viewtopic.php?t=28175]Graph multiple servers using an SNMP proxy[/url][/list]
[color=green]Templates[/color] :
[list][*][url=http://forums.cacti.net/viewtopic.php?t=15412]Multiple CPU usage for Linux[/url]
[*][url=http://forums.cacti.net/viewtopic.php?p=125152]Memory & swap usage for Unix[/url][/list][/size]
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fmangeant
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Post by fmangeant »

Googling with "Dell Powerconnect SNMP" returns this thread 1st :D

After looking at the Dell site, it seems that the 6224 switch supports multiple SNMP versions :
Management
Web-based management interface;
industry-standard CLI accessible via Telnet or Local Serial Port;
SNMP v1/v2c/v3;
4 RMON groups supported (history, stats, alarms, events);
Dual firmware images on-board;
Multiple configuration file upload/download supported;
Statistics for error monitoring and performance optimization including port summary tables;
Dell OpenManage Network Manager
[size=84]
[color=green]HOWTOs[/color] :
[list][*][url=http://forums.cacti.net/viewtopic.php?t=15353]Install and configure the Net-SNMP agent for Unix[/url]
[*][url=http://forums.cacti.net/viewtopic.php?t=26151]Install and configure the Net-SNMP agent for Windows[/url]
[*][url=http://forums.cacti.net/viewtopic.php?t=28175]Graph multiple servers using an SNMP proxy[/url][/list]
[color=green]Templates[/color] :
[list][*][url=http://forums.cacti.net/viewtopic.php?t=15412]Multiple CPU usage for Linux[/url]
[*][url=http://forums.cacti.net/viewtopic.php?p=125152]Memory & swap usage for Unix[/url][/list][/size]
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