高手大哥们，请帮忙看一下吧
这两天不知道怎么了一直的掉线，请高手们看一下。。最下面是路由的日志，帮忙看一下是哪事: System start
: ppp0 do connect
: clear ppp0 auth fail log
: ppp0 connect mode=0
: ppp0 start...
: ppp0 send PADI
: ppp0 rcv PADO
: Send PADR, Enter PPPOE_SREQ
: ppp0 rcv PADS
: Enter PPPOE_CONNECTED, Session_ID=10222
: start lcp stage
: received REQUEST
: no leases, requested_align:c0a80006
: sending NAK
: broadcasting packet to client (NAK)
: authentication failed log
: send PADT(10222)
: received DISCOVER
: sending OFFER of 192.168.1.2
: broadcasting packet to client
: received REQUEST
: sending ACK to 192.168.1.2
: broadcasting packet to client
: ppp0 do connect
: ppp0 connect mode=0
: ppp0 start...
: ppp0 send PADI
: ppp0 rcv PADO
: received INFORM
: unicasting packet to client ciaddr
: authentication failed log
: send PADT(13336)
: ppp0 do connect
: ppp0 connect mode=0
: ppp0 start...
: ppp0 send PADI
: ppp0 rcv PADO
: Send PADR, Enter PPPOE_SREQ
: ppp0 rcv PADS
: Enter PPPOE_CONNECTED, Session_ID=15391
: start lcp stage
: authentication failed
: authentication failed log
: Server 00:18:82:ab:74:4d auth fail, log it
: send PADT(15391)
: ppp0 do connect
: ppp0 connect mode=0
: ppp0 start...
: ppp0 send PADI
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: received REQUEST
: no leases, requested_align:c0a80003
: sending NAK
: broadcasting packet to client (NAK)
: received DISCOVER
: ppp0 rcv PADO
: Server 00:18:82:ab:74:4d is in auth failed list
: sending OFFER of 192.168.1.3
: broadcasting packet to client
: received DISCOVER
: mac has been exist!
: sending OFFER of 192.168.1.3
: broadcasting packet to client
: received REQUEST
: sending ACK to 192.168.1.3
: ppp0 rcv PADO
: Reconsider pppoe server 00:18:82:ab:74:4d
: Send PADR, Enter PPPOE_SREQ
: ppp0 rcv PADS
: Enter PPPOE_CONNECTED, Session_ID=11170
: start lcp stage
: ipcp up
: Got gateway IP 60.6.160.1
: Got local IP 60.6.172.156
: Got Primary DNS address 202.99.160.68
: received INFORM
: unicasting packet to client ciaddr
: login (192.168.1.3)
: received REQUEST
: no leases, requested_align:c0a80002
: sending NAK
: broadcasting packet to client (NAK)
: received DISCOVER
: sending OFFER of 192.168.1.4
: broadcasting packet to client
: received REQUEST
: sending ACK to 192.168.1.4
: broadcasting packet to client
: **Port Scan Detected** 60.9.238.103 -> 60.6.172.156
: logout (192.168.1.3)
: login (192.168.1.3)
: ipcp down
: send PADT(11170)
: ppp0 do connect
: ppp0 connect mode=0
: ppp0 start...
: ppp0 send PADI
: ppp0 rcv PADO
: Send PADR, Enter PPPOE_SREQ
: ppp0 rcv PADO
: Not PPPOE_SINIT
: ppp0 rcv PADS
: Enter PPPOE_CONNECTED, Session_ID=15062 我也不懂，路过帮顶一下
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