RHEL7 : rpcbind stops polling on UDP sockets with IPv6 disabled

Solution Unverified - Updated -

Issue

rpcbind stops responding to UDP requests for unknown reasons :

[root@rhel76 ~]# rpcinfo -T udp 172.23.1.241 100005 1
rpcinfo: RPC: Port mapper failure - Timed out

Environment

  • RHEL7.3 or higher (until RHEL7.8)
  • IPv6 disabled

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