transparent proxy with multiple squids?

[José Guzmán <jose@iteso.mx>]

 Hi,

 I have a main router/firwall for the lan in one box, and a squid hierarchy for
redundancy of two or three boxes (siblings). What's the best way to do
transparent proxying with 2 or more squids with iptables?

 What if I add a second router/firewall box with vrrpd and want to keep the
transparent proxy to several squid boxes? 

 In short: what's the best way to do scalable transparent proxying with iptables?

  current setup:

     /    (net1)-----[r]
    /     (net2)-----[o]
LAN<      (net3)-----[u]-----(ISP)
    \     (net4)-----[t]
     \    (net5)-----[e]
 (squids)-(net6)-----[r]

 
 Thanks

José

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"The obvious mathematical breakthrough would be development of an easy way to
factor large prime numbers." Bill Gates, The Road Ahead

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