Posted in Uncategorized on Aug 9th, 2009
I realized Airport Extreme isn’t as expensive as I thought it once was, so bought one today. I wanted a dual-stack router that was smaller and quieter than the Cisco 2620 under my desk in the bedroom. While the bedroom is certainly quieter now, the AE is pretty annoying to configure. The actual setup is [...]
Posted in Uncategorized on May 18th, 2009
For lovers of storing IP addresses as integers in MySQL tables, there’s a snag when doing this for IPv6 addresses. A 128-bit number is too big to stuff into a BIGINT type. All Fs integer equivalent is 340,282,366,920,938,463,463,374,607,431,768,211,455. An unsigned BIGINT tops out at 18,446,744,073,709,551,615. These are your options: Store it as a VARCHAR(39) in [...]
Posted in Uncategorized on May 16th, 2009
So here’s a traceroute to the anycast 6to4 address from my parents’ place. It winds up in Frankfurt, Germany! Their upstream, MBO is multihomed to Level3 and Sprint. I assume they’re defaulting to Level3, since the path to the Sprint 6to4 is 120 ms. traceroute to 192.88.99.1 (192.88.99.1), 64 hops max, 40 byte packets 1 [...]
Posted in Uncategorized on May 8th, 2009
A few observations with IPv6 fiddling all day long: IPv6 peering is going to be crazy important. Only a couple of our transit providers, Tiscali and Verizon (f/k/a UUnet) will give us native/dual-stack transit. To help ensure independent connectivity we’ll have to turn up v6 peering at our various peering points. With IPv4 the driving [...]
