translate router log for me please?

[niko]

hi guys after having my new nas plugged in i get these in my router log
can you help me with it please? cheers nik

Apr 18 13:28:26 user kernel: printk: 7608 messages suppressed.
Apr 18 13:28:26 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:28:26 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:28:26 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:28:26 user kernel: printk: 3904 messages suppressed.
Apr 18 13:28:26 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:28:26 user kernel: printk: 19899 messages suppressed.
Apr 18 13:28:26 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:28:26 user kernel: printk: 20024 messages suppressed.
Apr 18 13:28:26 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:28:26 user kernel: printk: 19895 messages suppressed.
Apr 18 13:28:26 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:29:58 user kernel: printk: 16357 messages suppressed.
Apr 18 13:29:58 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:29:58 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:29:58 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:29:58 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:29:58 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:29:58 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:29:58 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:29:58 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:29:58 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:29:58 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:29:58 user kernel: printk: 19329 messages suppressed.
Apr 18 13:29:58 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:29:58 user kernel: printk: 19698 messages suppressed.
Apr 18 13:29:58 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:30:34 user kernel: printk: 8562 messages suppressed.
Apr 18 13:30:34 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:30:34 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:30:34 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:30:34 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:30:34 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:30:34 user kernel: printk: 13809 messages suppressed.
Apr 18 13:30:34 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:30:34 user kernel: printk: 20103 messages suppressed.
Apr 18 13:30:34 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:30:57 user kernel: printk: 14787 messages suppressed.
Apr 18 13:30:57 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:30:57 user kernel: printk: 14428 messages suppressed.
Apr 18 13:30:57 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:30:57 user kernel: printk: 19710 messages suppressed.
Apr 18 13:30:57 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:30:57 user kernel: printk: 19859 messages suppressed.
Apr 18 13:30:57 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:30:57 user kernel: printk: 19543 messages suppressed.
Apr 18 13:30:57 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:31:12 user kernel: printk: 8386 messages suppressed.
Apr 18 13:31:12 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:31:12 user kernel: printk: 19980 messages suppressed.
Apr 18 13:31:12 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:31:12 user kernel: printk: 20100 messages suppressed.
Apr 18 13:31:12 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:31:23 daemon DHCP SERVER: DHCPINFORM from 192.168.1.100
Apr 18 13:31:26 daemon DHCP SERVER: DHCPINFORM from 192.168.1.100
Apr 18 13:31:51 user kernel: printk: 6994 messages suppressed.
Apr 18 13:31:51 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:31:51 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:31:51 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:31:51 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:31:51 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:31:51 user kernel: printk: 7180 messages suppressed.
Apr 18 13:31:51 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:31:51 user kernel: printk: 19937 messages suppressed.
Apr 18 13:31:51 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:31:51 user kernel: printk: 19983 messages suppressed.
Apr 18 13:31:51 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:32:28 user kernel: printk: 3427 messages suppressed.
Apr 18 13:32:28 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:32:28 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:32:28 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:32:28 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:32:28 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:32:28 user kernel: ipt_tcpmss_target: bad length (1010 bytes)
Apr 18 13:32:28 user kernel: printk: 18839 messages suppressed.
Apr 18 13:32:28 user kernel: ipt_tcpmss_target: bad length (1010 bytes)

 

[jfish]

The ipt_tcpmss_target: bad length means a SYN packets was sent with data and as you may be aware a SYN packet cannot have data - therefore the total length of the packet must be the same as the tcp header length. If this is not the case then this is then a bad length packet.

 

[niko]

cheers mate how do I diagnose and sort it? is it a network adaptor setting?