Invasão?

Pessoal, notei essas entradas no log do meu modem DSL, são possíveis invasões? O que é isso?
- Código: Selecionar todos
2010-11-11 17:56:55 E |PPP |IPCP nak option: 129
2010-11-11 17:56:55 E |PPP |IPCP nak option: 131
2010-11-11 17:56:56 E |PPP |IPCP up ip: 187.79.83.178, gw: 200.217.122.1, dns: 200.165.132.155, 200.149.55.140
2010-11-11 17:57:41 E |Firewall |D:19:0 UDP 187.127.66.46:1513 -> 192.168.254.2:1513 len=44 id=18835 DF=0 MF=0 byte-off=0
2010-11-11 17:59:03 E |Firewall |D:19:0 UDP 187.127.66.46:1513 -> 192.168.254.2:1513 len=44 id=19774 DF=0 MF=0 byte-off=0
2010-11-11 18:00:27 E |Firewall |D:19:0 UDP 187.127.66.46:1513 -> 192.168.254.2:1513 len=44 id=20700 DF=0 MF=0 byte-off=0
2010-11-11 18:01:23 E |Firewall |D:19:0 TCP 187.23.188.141:17209 -> 192.168.254.2:6691 len=52 id=836 DF=1 MF=0 byte-off=0
2010-11-11 18:01:26 E |Firewall |D:19:0 TCP 187.23.188.141:17209 -> 192.168.254.2:6691 len=52 id=845 DF=1 MF=0 byte-off=0
2010-11-11 18:01:32 E |Firewall |D:19:0 TCP 187.23.188.141:17209 -> 192.168.254.2:6691 len=48 id=852 DF=1 MF=0 byte-off=0
2010-11-11 18:01:51 E |Firewall |D:19:0 UDP 187.127.66.46:1513 -> 192.168.254.2:1513 len=44 id=21534 DF=0 MF=0 byte-off=0
2010-11-11 18:03:13 E |Firewall |D:19:0 UDP 187.127.66.46:1513 -> 192.168.254.2:1513 len=44 id=22406 DF=0 MF=0 byte-off=0
2010-11-11 18:04:35 E |Firewall |D:19:0 UDP 187.127.66.46:1513 -> 192.168.254.2:1513 len=44 id=23253 DF=0 MF=0 byte-off=0
2010-11-11 18:05:59 E |Firewall |D:19:0 UDP 187.127.66.46:1513 -> 192.168.254.2:1513 len=44 id=24095 DF=0 MF=0 byte-off=0
2010-11-11 18:06:07 E |Firewall |D:19:0 TCP 216.33.196.58:80 -> 192.168.254.4:61476 len=40 id=38902 DF=1 MF=0 byte-off=0
2010-11-11 18:07:22 E |Firewall |D:19:0 UDP 187.127.66.46:1513 -> 192.168.254.2:1513 len=44 id=25084 DF=0 MF=0 byte-off=0
2010-11-11 18:40:54 E |Firewall |D:19:0 TCP 186.82.144.243:52729 -> 192.168.254.2:6691 len=60 id=24213 DF=1 MF=0 byte-off=0
2010-11-11 18:41:01 E |Firewall |D:19:0 TCP 186.82.144.243:52729 -> 192.168.254.2:6691 len=56 id=24242 DF=1 MF=0 byte-off=0