In article <xs4all.CALgc3C7ngGpkRNYaCgN_ACY28uPFbM=KRnACsW0Jg=ysluq...@mail.gmail.com> you write: >For simplicity and a wish to keep a mapping to our IPv4 addresses, >each device (router/server/firewall) has a static IPv6 address that >has the same last digits as the IPv4 address, only the subnet is >changed. >You can say it's a IPv4 thinking model, but it's easier to remember >that if the fileserver it's at 192.168.10.10 then it's IPv6 >counterpart address would be 2001:abcd::192:168:10:10 (each subnet >being a /64)
We use a /120 subnet for servers to prevent the NDP cache exhaustion attack. We do maintain a mapping between IPv4 and IPv6 addresses; it's simply 2001:db8:vv:ww::xx, where xx is the hex value of the last octet of the IPv4 address. Mike.
