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Why can't I add my device by its IP address? / Why do I need valid hostnames and DNS?
Observium is aimed primarily at small to medium sized service providers. It's important to enforce good deployment and change control practices at SPs, so we try to help by making sure a device can't be added to the monitoring system without valid and correct hostname and DNS/hosts entry.
Before you complain about this, realise that you wouldn't have this problem now if everyone had created proper hostnames and DNS for your existing devices. Better to fix it than to ask us to compromise our policies to accommodate sloppy deployment! :)
My net-snmp daemon uses 100% CPU and I have a full BGP table
This is a net-snmp bug. You need to disable ipCidrRouteTable && inetCidrRouteTable.
Add this to your snmpd.conf
view all included .1 80 view all excluded .1.3.6.1.2.1.4.21 view all excluded .1.3.6.1.2.1.4.24 view system included .iso.org.dod.internet.mgmt.mib-2.system
My Cisco router does not show IPv6 BGP sessions - how come?
Please contact your Cisco representative and ask why they chose not to implement IPv6 BGP status into their SNMP stack. (Perhaps you can show them Juniper does do this)
Redhat/Fedora/CentOS No Legends on Graphs!
RedHat derrived distributions need additional steps to fix their font setup.
1. yum install dejavu-lgc-fonts.noarch 2. add $config['mono_font'] = "/usr/share/fonts/dejavu/DejaVuLGCSansMono.ttf"; to your config.php