Hi , We are trying to use the pacemaker load balancer feature. The Load balancer feature uses CLUSTERIP module of the RHEL iptables. CLUSTERIP Load balancer seems to be a RFC 1812 section 3.3.2 violation.
For using load balancing option we are going with the MAC generated by the pacemaker IpAddr2 resource agent itself. The resource details are $ sudo pcs resource show --full Clone: ClusterIP-clone Meta Attrs: clone-max=2 clone-node-max=1 globally-unique=true Resource: ClusterIP (class=ocf provider=heartbeat type=IPaddr2) Attributes: ip=10.61.198.86 cidr_netmask=23 clusterip_hash=sourceip-sourceport Operations: monitor interval=2s (ClusterIP-monitor-interval-2s) $ sudo service iptables status Table: filter Chain INPUT (policy ACCEPT) num target prot opt source destination 1 CLUSTERIP all -- 0.0.0.0/0 10.61.198.86 CLUSTERIP hashmode=sourceip-sourceport clustermac=6B:28:12:3E:4E:D4 total_nodes=2 local_node=2 hash_init=0 2 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 Chain FORWARD (policy ACCEPT) num target prot opt source destination Chain OUTPUT (policy ACCEPT) num target prot opt source destination 1 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 Since we are not using a Multicast MAC does the usage of CLUSTERIP module as above still constitute a RFC violation? With Regards Somanath Thilak J
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