
From syslog:
Mar 12 10:41:03 pluto NetworkManager[406]:    ifcfg-rh: updating /etc/sysconfig/network-scripts/ifcfg-eth2
Mar 12 10:41:04 pluto NetworkManager[406]:    ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-eth2.HYYBTW ...
Mar 12 10:41:04 pluto NetworkManager[406]:    ifcfg-rh:     error: Couldn't parse file '/etc/sysconfig/network-scripts/ifcfg-eth2.HYYBTW'
Mar 12 10:41:04 pluto NetworkManager[406]:    ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-eth2.HYYBTW ...
Mar 12 10:41:04 pluto NetworkManager[406]:    ifcfg-rh:     error: Couldn't parse file '/etc/sysconfig/network-scripts/ifcfg-eth2.HYYBTW'
Mar 12 10:41:04 pluto NetworkManager[406]:    ifcfg-rh: removed /etc/sysconfig/network-scripts/ifcfg-eth2.HYYBTW.

[root@pluto:~]#cat /etc/sysconfig/network-scripts/route6-eth2 
fd00:beef:10::/48 via fd00:dead:beef:18:1::2 metric 256
fd00:beef:11::/48 via fd00:dead:beef:18:1::2 metric 256
fd00:beef:12::/48 via fd00:dead:beef:18:1::2 metric 256
fd00:beef:13::/48 via fd00:dead:beef:18:1::2 metric 256
fd00:beef:20::/48 via fd00:dead:beef:18:1::6 metric 256
fd00:beef:21::/48 via fd00:dead:beef:18:1::6 metric 256
fd00:beef:22::/48 via fd00:dead:beef:18:1::6 metric 256
