slogin-serv* hosts IP addresses changing

The IP addresses associated with the slogin-serv* servers is changing as they are moving to a subnet for machines using NFS sec=sys. This may cause ssh to warn that that the IP address differs, but that the host key matches. This is not a problem, so type "yes" to connect. e.g.

ra4:~: ssh slogin-serv0 Warning: the RSA host key for 'slogin-serv0' differs from the key for the IP address '128.232.16.50' Offending key for IP in /etc/ssh/ssh_known_hosts-out:726 Matching host key in /etc/ssh/ssh_known_hosts-out:1370 Are you sure you want to continue connecting (yes/no)? yes Last login: Sun Oct 10 19:54:02 2010 from ramsey.cl.cam.ac.uk