[CentOS] ipvs and destination hashing...

Hi,

just in case some ipvs knowledgable people read this... I tried to find some info on ipvs destination hashing on the net but did not find anything... Right now we have a basic direct routing round-robin keepalived configuration: abc.example.com (a.b.c.d) => LVS ( round-robin ) => server_[1..n] with IP[1..n]. If we use the dh option, on what would the hashing be done? I saw some pseudo code that states that the hash is based on the destination IPs

in the packets... But there is only 1 IP in input and the output IPs are selected by round-robin already (so no point dhing them)... Do we have to have n IPs for abc.example.com (in the dns) and the hashing will be done on these IPs?

Thx, JD