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* <tt>icmp</tt>, ping
Traffic is distributed over the active hosts using one of the following methods. Persistence is sometimes provided by the distribution method, and otherwise (in case of for example least states) by the source tracking mechanism (if [[#Redirect sticky address|sticky address] is enabled).
* <tt>loadbalance</tt>, the source IP address of the client, and the IP address and port of the relay
* <tt>source-hash</tt>, the source IP address of the client