猫的日志
Mar 5 18:19:36 (none) daemon.err dhcp6c[29308]: cfparse: cfparse: fopen(/var/dhcp6c_ppp0.conf)
Mar 5 18:19:36 (none) daemon.err dhcp6c[29338]: handle_release_packet: send release completed.
Mar 5 18:22:59 (none) kern.crit kernel: fb_sbr_dev_ioctl():del br port :veip0.47 info success!
Mar 5 18:23:30 (none) daemon.err dhcp6c[1417]: client6_init: getaddrinfo: Name or service not known
Mar 5 18:23:32 (none) daemon.err dhcp6c[1480]: cfparse: cfparse: fopen(/var/dhcp6c_ppp0.conf)
Mar 5 18:23:32 (none) daemon.err dhcp6c[1507]: handle_release_packet: send release completed.
Mar 5 18:27:49 (none) daemon.err dhcp6s[6442]: cfparse: cfparse: fopen(/var/appconf/dhcp6s.conf)

Manufacturer: FiberHome
ProductClass: HG6543C4
SerialNumber:
IP: 10.6.138.210
HWVer: BM.V3.0
SWVer: RP0101
Mar 1 10:13:25 (none) daemon.err dhcp6s[2590]: cfparse: cfparse: fopen(/var/appconf/dhcp6s.conf)
Mar 2 10:13:40 (none) daemon.err dhcp6c[19677]: cfparse: cfparse: fopen(/var/dhcp6c_ppp0.conf)
Mar 2 10:13:40 (none) daemon.err dhcp6c[19703]: handle_release_packet: send release completed.
Mar 2 10:13:43 (none) daemon.err dhcp6s[20001]: cfparse: cfparse: fopen(/var/appconf/dhcp6s.conf)
Mar 3 05:06:10 (none) user.crit syslog: Agent: handel_reboot reboot
Jan 1 08:00:18 (none) kern.err kernel: create_rdpa_egress_tm:L806 Created RDPA egress tm egress_tm/dir=ds,index=0

现在把光猫路由器功能关闭，用自己的路由器拨号，通过观察日志文件，光猫的ipv6 dhcp出现错误，现在用自己买的路由器拨号，一切正常。这里要注意，光猫的拨号配置要删除，然后新建一个桥接。