I have just noticed the following entries in the technical log of my Smarthub 2
16:41:10, 30 May.
DoS(SYN Flooding): IN=ppp1 OUT= MAC= src=80.82.77.221 DST=86.161.102.26 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=36528 PROTO=TCP SPT=53242 DPT=13000 WINDOW=1024 RES=0x00 SYN URGP=0 MARK=0x8000000
16:41:10, 30 May.
DoS(Port Scanning): IN=ppp1 OUT= MAC= src=80.82.77.221 DST=86.161.102.26 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=790 PROTO=TCP SPT=53242 DPT=7721 WINDOW=1024 RES=0x00 SYN URGP=0 MARK=0x8000000
16:41:10, 30 May.
DoS(SYN Flooding): IN=ppp1 OUT= MAC= src=80.82.77.221 DST=86.161.102.26 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=790 PROTO=TCP SPT=53242 DPT=7721 WINDOW=1024 RES=0x00 SYN URGP=0 MARK=0x8000000
16:41:10, 30 May.
DoS(SYN Flooding): IN=ppp1 OUT= MAC= src=80.82.77.221 DST=86.161.102.26 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=12502 PROTO=TCP SPT=53242 DPT=1985 WINDOW=1024 RES=0x00 SYN URGP=0 MARK=0x8000000
16:41:10, 30 May.
DoS(SYN Flooding): IN=ppp1 OUT= MAC= src=80.82.77.221 DST=86.161.102.26 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=2603 PROTO=TCP SPT=53242 DPT=8501 WINDOW=1024 RES=0x00 SYN URGP=0 MARK=0x8000000
16:41:10, 30 May.
DoS(Port Scanning): IN=ppp1 OUT= MAC= src=80.82.77.221 DST=86.161.102.26 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=62470 PROTO=TCP SPT=53242 DPT=4010 WINDOW=1024 RES=0x00 SYN URGP=0 MARK=0x8000000
In particular should I be concerned about the DoS(Syn flooding) entries and, if so, what should I do about it?