iptables -L lags on non localhost or anywhere address

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http://askubuntu.com – I am trying to configure iptables for ubuntu 10.04 and I have a problem with iptables -L lagging on rows where the destination or source address is not localhost or anywhere. The following entries will cause lag on their row: iptables -A INPUT -p tcp --dport 111 -s -j ACCEPT iptables -A INPUT -p tcp --dport 90 -d -j ACCEPT while this does not: iptables -A INPUT -p tcp --dport localhost -s -j ACCEPT iptables -A INPUT -p tcp --dport localhost -d -j ACCEPT I feel like this might be due to iptables checking to see if the ip is reachable. If (HowTos)