> It's well worth upgrading to 3.1.8. Many of the 3.1 betas had broken SNMP. > > Also check that the squid.mib being loaded came from the 3.1 install. > > We now have a full map of what the OID are and what versions they work > for. You may find this useful: > http://wiki.squid-cache.org/Features/Snmp#Squid_OIDs > > > Amos > -- > Please be using > Current Stable Squid 2.7.STABLE9 or 3.1.8 > Beta testers wanted for 3.2.0.2 > Hi List, As suggested by Amos, I have upgraded the squid box to 3.1.8 and everything is working fine except the graph part with mrtg. mrtg version :mrtg-2.16.4 My mrtg.cfg is as below LoadMIBs: /usr/local/etc/mrtg/squid.mib EnableIPv6: no WorkDir: /usr/local/www/apache22/data Options[_]: bits,growright Target[proxy-hit]: cacheHttpHits&cacheServerRequests:public@xxxxxxxxx:3401 MaxBytes[proxy-hit]: 100000 Title[proxy-hit]: HTTP Hits Suppress[proxy-hit]: y LegendI[proxy-hit]: HTTP hits LegendO[proxy-hit]: HTTP requests Legend1[proxy-hit]: HTTP hits Legend2[proxy-hit]: HTTP requests YLegend[proxy-hit]: perminute ShortLegend[proxy-hit]: req/min Options[proxy-hit]: nopercent, perminute, dorelpercent, unknaszero, growright, pngdate #PNGTitle[proxy-hit]: Proxy Hits Target[proxy-srvkbinout]: cacheServerInKb&cacheServerOutKb:public@xxxxxxxxx:3401 MaxBytes[proxy-srvkbinout]: 76800 Title[proxy-srvkbinout]: Cache Server Traffic In/Out Suppress[proxy-srvkbinout]: y LegendI[proxy-srvkbinout]: Traffic In LegendO[proxy-srvkbinout]: Traffic Out Legend1[proxy-srvkbinout]: Traffic In Legend2[proxy-srvkbinout]: Traffic Out YLegend[proxy-srvkbinout]: per minute ShortLegend[proxy-srvkbinout]: b/min kMG[proxy-srvkbinout]: k,M,G,T kilo[proxy-srvkbinout]: 1024 Options[proxy-srvkbinout]: nopercent, perminute, unknaszero, growright, pngdate I have verified that squid snmp is working through the following command #snmpget -On -m /usr/local/etc/mrtg/squid.mib -v 2c -c public 127.0.0.1:3401 cacheHttpHits cacheServerRequests cacheServerInKb cacheServerOutKb cacheUptime CacheSoftware cacheVersionId This gives me results without any errors so snmp part of squid is working fine I think Now when I run mrtg I could see the following errors in mrtg.log file 010-10-04 12:37:33 -- Started mrtg with config '/usr/local/etc/mrtg/mrtg.cfg' 2010-10-04 12:37:33 -- Unknown SNMP var cacheHttpHits at /usr/local/bin/mrtg line 2242 2010-10-04 12:37:33 -- Unknown SNMP var cacheServerRequests at /usr/local/bin/mrtg line 2242 2010-10-04 12:37:33 -- Unknown SNMP var cacheUptime at /usr/local/bin/mrtg line 2242 2010-10-04 12:37:33 -- Unknown SNMP var cacheSoftware at /usr/local/bin/mrtg line 2242 2010-10-04 12:37:33 -- Unknown SNMP var cacheVersionId at /usr/local/bin/mrtg line 2242 2010-10-04 12:37:33 -- Use of uninitialized value $ret[-2] in concatenation (.) or string at /usr/local/bin/mrtg line 2261. 2010-10-04 12:37:33 -- Use of uninitialized value $ret[-1] in concatenation (.) or string at /usr/local/bin/mrtg line 2261. 2010-10-04 12:37:33 -- Unknown SNMP var cacheServerInKb at /usr/local/bin/mrtg line 2242 2010-10-04 12:37:33 -- Unknown SNMP var cacheServerOutKb at /usr/local/bin/mrtg line 2242 2010-10-04 12:37:33 -- Unknown SNMP var cacheUptime at /usr/local/bin/mrtg line 2242 2010-10-04 12:37:33 -- Unknown SNMP var cacheSoftware at /usr/local/bin/mrtg line 2242 2010-10-04 12:37:33 -- Unknown SNMP var cacheVersionId at /usr/local/bin/mrtg line 2242 2010-10-04 12:37:33 -- Use of uninitialized value $ret[-2] in concatenation (.) or string at /usr/local/bin/mrtg line 2261. 2010-10-04 12:37:33 -- Use of uninitialized value $ret[-1] in concatenation (.) or string at /usr/local/bin/mrtg line 2261. 2010-10-04 12:37:33 -- 2010-10-04 12:37:33: ERROR: Target[proxy-hit][_IN_] ' $target->[0]{$mode} ' did not eval into defined data 2010-10-04 12:37:33 -- 2010-10-04 12:37:33: ERROR: Target[proxy-hit][_OUT_] ' $target->[0]{$mode} ' did not eval into defined data 2010-10-04 12:37:33 -- 2010-10-04 12:37:33: ERROR: Target[proxy-srvkbinout][_IN_] ' $target->[1]{$mode} ' did not eval into defined data 2010-10-04 12:37:33 -- 2010-10-04 12:37:33: ERROR: Target[proxy-srvkbinout][_OUT_] ' $target->[1]{$mode} ' did not eval into defined data All I could make out from these error was mrtg not reading squid.mib file. Am I right? Now I am stuck and I suspect a broken mrtg? or did I go wrong somewhere? Do kindly let me know what went wrong and how to proceed further. Thanx in advance Babs