We've just set up an account with dnsmadeeasy.com - cheap service and will monitor ips using multiple protocols (http/s tcp snmp) and can do dns failover with a 3 minute ttl -----Original Message----- From: nznog-bounces(a)list.waikato.ac.nz [mailto:nznog-bounces(a)list.waikato.ac.nz] On Behalf Of Matthew Poole Sent: Wednesday, 6 November 2013 1:42 p.m. To: Chris Jones Cc: NZNOG Subject: Re: [nznog] Multi-homing without PI space Well, it's a right nuisance trying to deal with things if the addresses need to change, but having two very-much-competitor ISPs providing different addresses over two different physical links would seem to make that a necessity. So it's then about how to handle triggering the change in DNS records and routing for multiple servers that have public IP addresses in as seamless a manner as possible with the shortest possible delay between link 1 failing and link 2 becoming the path for inbound and outbound traffic. On 6/11/2013 11:35, Chris Jones wrote:
How important is it that the addresses stay the same?
-- Matthew Poole "The difference between theory and practice is that practice is easier in theory than theory is in practice" _______________________________________________ NZNOG mailing list NZNOG(a)list.waikato.ac.nz http://list.waikato.ac.nz/mailman/listinfo/nznog