hi, I have just found the following lines in the log file of my firewall: Mar 14 17:45:06 linux sshd[8830]: Server listening on 0.0.0.0 port 22. Mar 14 18:27:30 keyl kernel: Packet log: input DENY eth0 PROTO=6 134.169.85.76:47157 0.0.0.0:0 L=40 S=0x00 I=43008 F=0x4000 T=1 (#38) Mar 15 11:02:35 keyl kernel: Packet log: input DENY eth0 PROTO=17 0.0.0.0:68 255.255.255.255:67 L=359 S=0x00 I=1 F=0x4000 T=60 (#38) Mar 15 11:02:35 keyl kernel: Packet log: input DENY eth0 PROTO=17 0.0.0.0:68 255.255.255.255:67 L=576 S=0x00 I=2 F=0x4000 T=60 (#38) Mar 15 11:02:37 keyl kernel: Packet log: input DENY eth0 PROTO=17 0.0.0.0:68 255.255.255.255:67 L=359 S=0x00 I=3 F=0x4000 T=60 (#38) Mar 15 11:02:41 keyl kernel: Packet log: input DENY eth0 PROTO=17 0.0.0.0:68 255.255.255.255:67 L=576 S=0x00 I=4 F=0x4000 T=60 (#38) Mar 15 12:15:41 keyl kernel: Packet log: input DENY eth0 PROTO=17 0.0.0.0:68 255.255.255.255:67 L=400 S=0x00 I=1 F=0x4000 T=60 (#38) Mar 15 12:15:42 keyl kernel: Packet log: input DENY eth0 PROTO=17 0.0.0.0:68 255.255.255.255:67 L=576 S=0x00 I=2 F=0x4000 T=60 (#38) Mar 15 12:15:43 keyl kernel: Packet log: input DENY eth0 PROTO=17 0.0.0.0:68 255.255.255.255:67 L=400 S=0x00 I=3 F=0x4000 T=60 (#38) Mar 15 12:15:47 keyl kernel: Packet log: input DENY eth0 PROTO=17 0.0.0.0:68 255.255.255.255:67 L=576 S=0x00 I=4 F=0x4000 T=60 (#38) Mar 15 17:02:45 keyl kernel: Packet log: input DENY eth0 PROTO=17 0.0.0.0:68 255.255.255.255:67 L=333 S=0x00 I=1 F=0x4000 T=60 (#45) Mar 15 17:02:46 keyl kernel: Packet log: input DENY eth0 PROTO=17 0.0.0.0:68 255.255.255.255:67 L=576 S=0x00 I=2 F=0x4000 T=60 (#45) Mar 15 17:02:48 keyl kernel: Packet log: input DENY eth0 PROTO=17 0.0.0.0:68 255.255.255.255:67 L=333 S=0x00 I=3 F=0x4000 T=60 (#45) Mar 15 17:02:52 keyl kernel: Packet log: input DENY eth0 PROTO=17 0.0.0.0:68 255.255.255.255:67 L=576 S=0x00 I=4 F=0x4000 T=60 (#45) Can anybody explain me what is going on there? Bye, Michael