[fly]

Still no references.

You should execute commands for adding ispmgr chain to INPUT

iptables -I INPUT 1 -j ispmgr_deny_ip
iptables -I INPUT 2 -j ispmgr_allow_ip
iptables -I INPUT 3 -j ispmgr_allow_sub
iptables -I INPUT 4 -j ispmgr_deny_sub