最近从5-1开始网络一直不好。每次都要进路中重新设置一下。才能上网网速还慢。无故掉线。附路由日志

1  [Tue May 16 20:30:02 2006]: eth0 link up
2  [Tue May 16 20:30:04 2006]: PPPOE send PADI...
3  [Tue May 16 20:30:09 2006]: retry! PPPOE send PADI...
4  [Tue May 16 20:30:14 2006]: retry! PPPOE send PADI...
5  [Tue May 16 20:30:19 2006]: retry! PPPOE send PADI...
6  [Tue May 16 20:30:32 2006]: PPPOE send PADI...
7  [Tue May 16 20:30:32 2006]: PPPOE recv PADO
8  [Tue May 16 20:30:32 2006]: PPPOE send PADR...
9  [Tue May 16 20:30:32 2006]: PPPOE recv PADS
10  [Tue May 16 20:30:32 2006]: PPP session is 5718
11  [Tue May 16 20:30:32 2006]: PPP is Connecting...
12  [Tue May 16 20:30:32 2006]: PPP lcp: up.
13  [Tue May 16 20:30:32 2006]: PPP Connection Established.
14  [Tue May 16 20:30:32 2006]: PPP ipcp: up.
15  [Tue May 16 20:30:32 2006]: local IP address 222:130:91:108
16  [Tue May 16 20:30:32 2006]: remote IP address 222:130:88:1
17  [Tue May 16 20:39:35 2007]: IP 192.168.0.2 TCP SYN Flooding
18  [Tue May 16 20:39:35 2007]: IP 192.168.0.2 TCP SYN Flooding