Hello all, My FreeBSD actually knows an IP conflict due a bug in 'rpcbind' code. It does well exist an option ( -h <IP Address> ) to bind 'rcpbind' process to a unique IP address but this actually only works with UDP ( except for a service running on port 855 but don't know what this service is ??? ) and not TCP. vincent@wbedllfs [/home/vincent] # ps -waux |grep rpc root 15505 0.0 0.1 1452 1144 ?? Is 8:05PM 0:00.01 rpcbind -h 10.66.1.1 vincent@wbedllfs [/home/vincent] # sockstat -l4 USER COMMAND PID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS root rpcbind 15505 10 udp4 127.0.0.1:111 *:* root rpcbind 15505 11 udp4 10.66.1.1:111 *:* root rpcbind 15505 12 udp4 *:855 *:* root rpcbind 15505 13 tcp4 *:111 *:* It seems that this problem is known for a long time but didn't find any patch for it or just an old one for portmap http://memberwebs.com/nielsen/freebsd/jails/patches/portmap-j.html So is there somebody having such a patch but for rpcbind on FreeBSD RELENG_5 ? Regards Vincent.