problem about icmpv6-Collection of common programming errors

• 
  Robert Tupelo-Schneck
  tcp ipv6 icmpv6
  I’m testing on IPv6. A is a server in a Cogent colo with native IPv6, call it 2001:db8:1111::1. B is a Mac mini behind an Airport Extreme router behind ISP Comcast; the router is set up to use anycast 6to4, and B is let’s say 2002:c000:202::2.On B, ssh 2001:db8:1111::1 works just fine.On A, ssh 2002:c000:202::2 times out. (Same for any other TCP connection.) Running tcpdump -nnvvvSs0 on B, I can see that the SYN packet from A reaches B just fine, but the SYN-ACK packet back from B to A is to

Web site is in building