Re: [squid-users] Squid and level 4 switch

tis 2007-07-17 klockan 14:03 +0800 skrev Ming-Ching Tiew:
> Anyone has experience with level 4 switch ? What is the working
> principle of a level 4 in respect to redirecting web traffic to a cache
> engine ? Does it do dst IP address rewrite ( iptables DNAT ) or
> does it do dst MAC address rewrite ( ebtables dnat ) when redirecting
> traffic to the cache engine ?

Whatever, depending on the product and configuration.

> Can I simulate a level 4 switch behaviour using Linux ? If yes,
> any insight to the necessary ebtables/iptables rules ?

Linux policy routing is an example of "layer 4".

For load balancing see Linux Virtual Server / IPVS. Part of the linux
kernel, and performs most of the forwarding choices you find in "layer 4
switches". http://www.linuxvirtualserver.org/

Regards
Henrik