arptables_jf

[Brent Jensen]

When and where would one use the arptables_jf package--if any--under lvs w/ 
ldirector? I have two configurations running Centos 4 (rhel4): (1) 
load-balancing mysql using LVS DR (inside the firewall) and (2) LVS NAT for 
http load balancing (web servers are unix). The LVS NAT directors also acts 
as the firewall.

According to Ultramonkey, it states "The Red Hat Enterprise Linux kernel 
does not currently have the arp_ignore and arp_announce flags." And 
therefore, they use arptables_jf. I think this is no longer true for RHEL4; 
therefore, is this package required?

Just wondering if I'm missing something. Thanks.