Alert MSSG in ADSL log

[jbk-SkCWf5sxpj0sV2N9l4h3zg at public.gmane.org (jbk)]

I just bought and configured a Dlink 2540B DSL modem to 
replace my Zoom X5. I am getting the following warning 
message in the log and I am not sure what to make of it:

kernel: Intrusion -> IN=ppp_0_35_3 OUT= MAC= SRC=173.73.2.60 
DST=63.209.236.25 LEN=48 TOS=0x00 PREC=0x00 TTL=113 ID=5380 
DF PROTO=TCP SPT=56551 DPT=42065 WINDOW=8192 RES=0x00 SYN URGP=0

There are four columns preceding this 
|Date/time|Facility|MessageType| The facility column says user.

It seems to have an embedded linux OS. Is there a way to 
access the OS other than through the WEB interface?

Jim KR