Sorry about the incorrect response.....I'll repost my replies below and thanks again. Al
-----Original Message----- From: Dave Shield [mailto:[EMAIL PROTECTED] Sent: Friday, June 17, 2005 09:14 To: Licause, Al Cc: [email protected] Subject: RE: snmpwalk failing to return info from lo [ First - *please* don't mail me privately, without copying any responses to the mailing list. I don't have the time or inclination to offer private, unpaid, SNMP consultancy. Keep discussions to the list, where others can both learn and offer advice. Thanks. ] On Fri, 2005-06-17 at 14:04, Licause, Al wrote: > Dave, > > Thanks for the quick response. That is one of the last commands I > asked the customer to attempt. It returned nothing. > OK - then I'd be inclined to check whether the agent is > a) actually receiving the requests at all > (or are some firewall settings getting in the way) The customer is not using any firewall software and is not running iptables or ipchains. >b) reading the expected access control settings I've taken a copy of their snmpd.conf file and run it on our own system. No problems ! We ran tcpdump against lo and can see the requests coming to the agent and some responses. The loopback device has no problem responding to requests as long as the request is not about the lo device itself. > I also had the customer strace this > command and can provide that output if it would be helpful. > Tracing the 'snmpwalk' command probably won't help. > It sounds more likely that the problem lies on the agent side. I would agree that the agent may be at fault since any attempt to request information about lo or 127.0.0.1 results in timeouts. >Have your customer shut down the SNMP agent > (probably "/etc/rc.d/init.d/snmp stop") >and then run > snmpd -f -Le -d >In another window, run the snmpwalk command again. >Does the agent show incoming packet dumps or not? I'll have them try this and report the results. >If it does, then they'll need to look at the access control settings in the snmpd.conf file. If it doesn't, then they'll >need to look at the firewall settings - probably in the '/etc/sysconfig/iptables' file. >Or the SNMP agent may be displaying some other useful output, of course. Fingers crossed ! Al >Dave ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_idt77&alloc_id492&op=click _______________________________________________ Net-snmp-coders mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/net-snmp-coders
