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联通宽带凌晨 1 点 15 分左右，突然由公网切换成内网 ip
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先是切了一个公网 ip ，秒断，自动重新认证后变为 100 开头的内网 ip 。
同小区三条联通宽带都是一样的情况。在跑 pcdn ，开了 DDNS 。
大家有这样的情况么？是否能要回公网 ip ？
附路由器日志：
May 19 01:14:55 pppd[13082]: No response to 6 echo-requests
May 19 01:14:55 pppd[13082]: Serial link appears to be disconnected.
May 19 01:14:55 pppd[13082]: Connect time 23595.3 minutes.
May 19 01:14:55 pppd[13082]: Sent 3282136504 bytes, received 3988102948 bytes.
May 19 01:14:55 K2P: WAN down (ppp0)
May 19 01:14:55 dnsmasq[25563]: read /etc/hosts - 8 names
May 19 01:14:55 dnsmasq[25563]: read /etc/storage/dnsmasq/hosts - 0 names
May 19 01:14:55 dnsmasq-dhcp[25563]: read /etc/dnsmasq/dhcp/dhcp-hosts.rc
May 19 01:14:55 dnsmasq[25563]: illegal option at line 1 of /tmp/dnsmasq.servers
May 19 01:14:55 admin: 运行后 WAN 状态: WAN 状态: [ down ] , WAN 接口: [ ppp0 ] , WAN IP: [ 112.64.208.73 ]
May 19 01:14:55 PPPoE: Disconnected
May 19 01:15:01 pppd[13082]: Connection terminated.
May 19 01:15:01 pppd[13082]: Sent PADT
May 19 01:15:01 pppd[13082]: Modem hangup
May 19 01:15:11 pppd[13082]: PPP session is 37764 (0x9384)
May 19 01:15:11 pppd[13082]: Connected to d4:4f:67:57:12:26 via interface eth3
May 19 01:15:11 pppd[13082]: Using interface ppp0
May 19 01:15:11 pppd[13082]: Connect: ppp0 <--> eth3
May 19 01:15:14 pppd[13082]: syncppp not active
May 19 01:15:14 pppd[13082]: Remote message: Authentication success,Welcome!
May 19 01:15:14 pppd[13082]: PAP authentication succeeded
May 19 01:15:14 pppd[13082]: peer from calling number D4:4F:67:57:12:26 authorized
May 19 01:15:14 pppd[13082]: local IP address 100.83.124.193
May 19 01:15:14 pppd[13082]: remote IP address 100.83.64.1
May 19 01:15:14 pppd[13082]: primary DNS address 210.22.70.225
May 19 01:15:14 pppd[13082]: secondary DNS address 210.22.70.3
May 19 01:15:14 K2P: WAN up (ppp0)
May 19 01:15:14 dnsmasq[25563]: read /etc/hosts - 8 names
May 19 01:15:14 dnsmasq[25563]: read /etc/storage/dnsmasq/hosts - 0 names
May 19 01:15:14 dnsmasq-dhcp[25563]: read /etc/dnsmasq/dhcp/dhcp-hosts.rc
May 19 01:15:14 dnsmasq[25563]: illegal option at line 1 of /tmp/dnsmasq.servers
May 19 01:15:14 [防火墙规则] : 脚本完成
May 19 01:15:14 admin: 运行后 WAN 状态: WAN 状态: [ up ] , WAN 接口: [ ppp0 ] , WAN IP: [ 100.83.124.193 ]
May 19 01:15:14 [自定义脚本 0 ] : 脚本完成
May 19 01:15:14 [ WebUI ] : UI 开关遍历状态监测
May 19 01:15:19 [ opt ] : opt 挂载正常：tmpfs
May 19 01:15:25 crond[26647]: crond (busybox 1.29.3) started, log level 8
同小区三条联通宽带都是一样的情况。在跑 pcdn ，开了 DDNS 。
大家有这样的情况么？是否能要回公网 ip ？
附路由器日志：
May 19 01:14:55 pppd[13082]: No response to 6 echo-requests
May 19 01:14:55 pppd[13082]: Serial link appears to be disconnected.
May 19 01:14:55 pppd[13082]: Connect time 23595.3 minutes.
May 19 01:14:55 pppd[13082]: Sent 3282136504 bytes, received 3988102948 bytes.
May 19 01:14:55 K2P: WAN down (ppp0)
May 19 01:14:55 dnsmasq[25563]: read /etc/hosts - 8 names
May 19 01:14:55 dnsmasq[25563]: read /etc/storage/dnsmasq/hosts - 0 names
May 19 01:14:55 dnsmasq-dhcp[25563]: read /etc/dnsmasq/dhcp/dhcp-hosts.rc
May 19 01:14:55 dnsmasq[25563]: illegal option at line 1 of /tmp/dnsmasq.servers
May 19 01:14:55 admin: 运行后 WAN 状态: WAN 状态: [ down ] , WAN 接口: [ ppp0 ] , WAN IP: [ 112.64.208.73 ]
May 19 01:14:55 PPPoE: Disconnected
May 19 01:15:01 pppd[13082]: Connection terminated.
May 19 01:15:01 pppd[13082]: Sent PADT
May 19 01:15:01 pppd[13082]: Modem hangup
May 19 01:15:11 pppd[13082]: PPP session is 37764 (0x9384)
May 19 01:15:11 pppd[13082]: Connected to d4:4f:67:57:12:26 via interface eth3
May 19 01:15:11 pppd[13082]: Using interface ppp0
May 19 01:15:11 pppd[13082]: Connect: ppp0 <--> eth3
May 19 01:15:14 pppd[13082]: syncppp not active
May 19 01:15:14 pppd[13082]: Remote message: Authentication success,Welcome!
May 19 01:15:14 pppd[13082]: PAP authentication succeeded
May 19 01:15:14 pppd[13082]: peer from calling number D4:4F:67:57:12:26 authorized
May 19 01:15:14 pppd[13082]: local IP address 100.83.124.193
May 19 01:15:14 pppd[13082]: remote IP address 100.83.64.1
May 19 01:15:14 pppd[13082]: primary DNS address 210.22.70.225
May 19 01:15:14 pppd[13082]: secondary DNS address 210.22.70.3
May 19 01:15:14 K2P: WAN up (ppp0)
May 19 01:15:14 dnsmasq[25563]: read /etc/hosts - 8 names
May 19 01:15:14 dnsmasq[25563]: read /etc/storage/dnsmasq/hosts - 0 names
May 19 01:15:14 dnsmasq-dhcp[25563]: read /etc/dnsmasq/dhcp/dhcp-hosts.rc
May 19 01:15:14 dnsmasq[25563]: illegal option at line 1 of /tmp/dnsmasq.servers
May 19 01:15:14 [防火墙规则] : 脚本完成
May 19 01:15:14 admin: 运行后 WAN 状态: WAN 状态: [ up ] , WAN 接口: [ ppp0 ] , WAN IP: [ 100.83.124.193 ]
May 19 01:15:14 [自定义脚本 0 ] : 脚本完成
May 19 01:15:14 [ WebUI ] : UI 开关遍历状态监测
May 19 01:15:19 [ opt ] : opt 挂载正常：tmpfs
May 19 01:15:25 crond[26647]: crond (busybox 1.29.3) started, log level 8
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