jm + ipv4   2

MaxMind DB File Format Specification
An interesting data structure format -- 'the MaxMind DB file format is a database format that maps IPv4 and IPv6 addresses to data records using an efficient binary search tree.'
maxmind  databases  storage  ipv4  ipv6  addresses  bst  binary-search-trees  trees  data-structures 
27 days ago by jm
About to leave UPC due to (lack of) port forwarding - Boards.ie
Virgin Media/UPC seem to have silently deployed an IPv6 "carrier-grade NAT" setup called "DS-Lite" -- ie. all customers now get just a routable IPv6 address, and share a small pool of IPv4 NATs. This breaks a multitude of useful services, including UDP IPSec VPNs it seems
udp  vpns  isps  virgin-media  virgin  ireland  ds-lite  ipv6  tunnelling  networking  nat  ipv4 
may 2016 by jm

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