Running LifeKeeper DRBD Recovery Kit With a Firewall

When using the LifeKeeper Recovery Kit for DRBD, the firewall should be configured to allow access to any of the ports used by DRBD for replication. The Recovery Kit for DRBD will use ports starting with port 7788 (set during creation of the DRBD resource with the starting value determined by DRBD_BASE_PORT in /etc/default/LifeKeeper). The ports configured with each DRBD resource can be found in the DRBD resource file in the directory /etc/drbd.d.