PCDVD數位科技討論區 - 請問DIR-300出現的DHCP: Server sending ACK to xxx (Lease time = -1) & DHCP 伺服器 xxx 拒絕網路位址 x

Jun 12 16:23:55 DHCP: Server sending ACK to 192.168.0.122. (Lease time = -1)
Jun 12 16:23:55 DHCP: Server receive REQUEST from 00:31:df:2g:dd:48.
Jun 12 16:23:52 DHCP: Server sending ACK to 192.168.0.122. (Lease time = -1)
Jun 12 16:23:52 DHCP: Server receive REQUEST from 00:31:df:2g:dd:48.
Jun 12 16:16:33 ATTACK Detected: 001[Xmas] attack from WAN (ip:203.70.17.209) detected. Packet dropped.
Jun 12 16:16:03 ATTACK Detected: 001[Xmas] attack from WAN (ip:203.70.17.209) detected. Packet dropped.
Jun 12 16:16:03 ATTACK Detected: 001[Xmas] attack from WAN (ip:203.70.17.209) detected. Packet dropped.
Jun 12 15:57:06 ATTACK Detected: 001[Xmas] attack from WAN (ip:211.74.5.243) detected. Packet dropped.
Jun 12 15:47:28 ATTACK Detected: 001[SYN-ACK] attack from WAN (ip:94.102.3.90) detected. Packet dropped.
Jun 12 15:41:19 DHCP: Server sending NAK to 00:31:df:2g:dd:48.
Jun 12 15:41:19 DHCP: Server sending ACK to 192.168.0.122. (Lease time = -1)
Jun 12 15:41:19 DHCP: Server receive REQUEST from 00:31:df:2g:dd:48.
Jun 12 15:41:19 DHCP: Server sending OFFER of 192.168.0.122 for static DHCP client.
Jun 12 15:41:19 DHCP: Server receive DISCOVER from 00:31:df:2g:dd:48.
Jun 12 15:41:17 DHCP: Server sending NAK to 00:31:df:2g:dd:48.
Jun 12 15:41:17 DHCP: Server receive REQUEST from 00:31:df:2g:dd:48.
Jun 12 15:33:08 ATTACK Detected: 001[SYN-ACK] attack from WAN (ip:173.192.214.42) detected. Packet dropped.
Jun 12 14:20:18 ATTACK Detected: 001[SYN-ACK] attack from WAN (ip:139.175.55.244) detected. Packet dropped.
Jun 12 14:20:18 ATTACK Detected: 001[SYN-ACK] attack from WAN (ip:139.175.55.244) detected. Packet dropped.
Jun 12 14:20:16 ATTACK Detected: 001[SYN-ACK] attack from WAN (ip:139.175.55.244) detected. Packet dropped.

區域網路:
MAC 位址 : 00:2c:22:e6:f3:4e
IP 位址 : 192.168.0.5
子網路遮罩 : 255.255.255.0
DHCP 伺服器 : 啟用

網際網路:
MAC 位址 : 00:31:df:2g:dd:50
連線 : DHCP 用戶端
IP 位址 : 123.1xx.xxx.x
子網路遮罩 : 255.255.xxx.0
預設閘道 : 123.1xx.xxx.x
DNS : 139.1xx.xx.xxx 168.9x.x.x

SPI:已開啟
RTSP:已開啟

機型:DIR-300 B1
韌體:1.05 (7/6 2009)
家裏三台電腦 ,無線一台
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關於分享器的[Xmas]&[SYN-ACK]訊息就先不討論了........因為從以前就都有的現象!

我分享器都已經設定用各電腦內建的乙太網路卡位址分配局網位址 ,而我電腦的位址便是00:31:df:2g:dd:48 ,分配為192.168.0.122 ,今年初開始只要我電腦一開機就會在5分鐘內出現以上紅字的訊息 ,之後就都不再出現 ,但是這好像是有問題的 ,但我找不到方式解決 ,也不清楚為何會如此??
相對的我電腦內系統管理事件檢視器也會出現"DHCP 伺服器 192.168.0.5 拒絕網路位址 00:31:df:2g:dd:48的介面卡的 IP 位址租用 192.168.0.122 (DHCP 伺服器已傳送 DHCPNACK 訊息)。"

請問這該如何解釋並解決呢??第一次出現日期好像疑似是發生在今年5/01 ,然後每次開機都會出現這些以上紅字訊息!
麻煩各位嚕ORZ