Log de router

Bueno, pues ando un poquito mosca, en diferentes foros que tratan los temas de adsl y routers dicen que el siguiente log es normal, y me dá a mi que no puede ser muy normal, que os parece?

Jan 1 00:00:34 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=83.52.236.118 DST=87.218.53.247 LEN=60 TOS=0x00 PREC=0x00 TTL=253 ID=32682 DF PROTO=TCP SPT=23288 DPT=14238 WINDOW=32768 RES=0x00 SYN URGP=0
Jan 1 00:00:37 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=83.52.236.118 DST=87.218.53.247 LEN=60 TOS=0x00 PREC=0x00 TTL=253 ID=32917 DF PROTO=TCP SPT=23288 DPT=14238 WINDOW=32768 RES=0x00 SYN URGP=0
Jan 1 00:00:40 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=83.52.236.118 DST=87.218.53.247 LEN=60 TOS=0x00 PREC=0x00 TTL=253 ID=33157 DF PROTO=TCP SPT=23288 DPT=14238 WINDOW=32768 RES=0x00 SYN URGP=0
Jan 1 00:00:43 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=83.52.236.118 DST=87.218.53.247 LEN=44 TOS=0x00 PREC=0x00 TTL=253 ID=33392 DF PROTO=TCP SPT=23288 DPT=14238 WINDOW=32768 RES=0x00 SYN URGP=0
Jan 1 00:00:46 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=83.52.236.118 DST=87.218.53.247 LEN=44 TOS=0x00 PREC=0x00 TTL=253 ID=33599 DF PROTO=TCP SPT=23288 DPT=14238 WINDOW=32768 RES=0x00 SYN URGP=0
Jan 1 00:10:50 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=87.6.123.229 DST=87.218.53.247 LEN=48 TOS=0x00 PREC=0x00 TTL=253 ID=15669 DF PROTO=TCP SPT=3874 DPT=14238 WINDOW=16384 RES=0x00 SYN URGP=0
Jan 1 00:20:38 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=200.42.177.207 DST=87.218.53.247 LEN=60 TOS=0x00 PREC=0x00 TTL=252 ID=33533 DF PROTO=TCP SPT=4468 DPT=11496 WINDOW=64800 RES=0x00 SYN URGP=1026
Jan 1 00:30:39 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=190.48.153.23 DST=87.218.53.247 LEN=48 TOS=0x00 PREC=0x00 TTL=253 ID=40266 DF PROTO=TCP SPT=2613 DPT=14238 WINDOW=16384 RES=0x00 SYN URGP=0
Jan 1 00:40:48 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=201.248.94.108 DST=87.218.53.247 LEN=60 TOS=0x00 PREC=0x00 TTL=253 ID=8600 DF PROTO=TCP SPT=1375 DPT=14238 WINDOW=16384 RES=0x00 SYN URGP=0
Jan 1 00:50:48 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=83.195.87.177 DST=87.218.53.247 LEN=48 TOS=0x00 PREC=0x00 TTL=252 ID=57757 DF PROTO=TCP SPT=4290 DPT=14238 WINDOW=65535 RES=0x00 SYN URGP=0
Jan 1 01:01:02 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=82.159.42.21 DST=87.218.53.247 LEN=48 TOS=0x00 PREC=0x00 TTL=252 ID=60589 DF PROTO=TCP SPT=1037 DPT=11496 WINDOW=16384 RES=0x00 SYN URGP=0
Jan 1 01:11:04 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=190.30.33.180 DST=87.218.53.247 LEN=48 TOS=0x00 PREC=0x00 TTL=253 ID=61036 DF PROTO=TCP SPT=2172 DPT=11496 WINDOW=65535 RES=0x00 SYN URGP=0
Jan 1 01:21:27 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=85.60.102.56 DST=87.218.53.247 LEN=52 TOS=0x00 PREC=0x00 TTL=253 ID=9006 DF PROTO=TCP SPT=65136 DPT=11496 WINDOW=8192 RES=0x00 SYN URGP=0
Jan 1 01:31:18 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=81.35.48.158 DST=87.218.53.247 LEN=64 TOS=0x00 PREC=0x00 TTL=253 ID=20363 DF PROTO=TCP SPT=1283 DPT=14238 WINDOW=65535 RES=0x00 SYN URGP=0
Jan 1 01:40:35 user alert kernel: Intrusion -> IN=ppp_8_35_1 OUT= MAC= SRC=201.248.94.108 DST=87.218.53.247 LEN=60 TOS=0x00 PREC=0x00 TTL=253 ID=19837 DF PROTO=TCP SPT=4341 DPT=14238 WINDOW=16384 RES=0x00 SYN URGP=0

Gracias de antemano.