Please help w/ ipchains log

[jennyw]

I'm just starting to learn ipchains and have a Debian GNU/Linux system (woody) setup. This morning, I started getting a lot of stuff in the log, and I'm not sure what it is. An excerpt from the log is at the end of the message.   My interpretation is that several computers, all within the 171.66.x.x subnet are attempting access to my computer. But this seems rather odd ... could it be that I've configured something wrong and it's not really coming from these other folks?  Then again, this is at Stanford, and I suppose it's possible that someone has gotten control of some points within the Stanford network and are launching something against me ... but there's a part of me that says that I'm just being paranoid.   Thanks!   Jen   Nov 17 06:45:53 towanda syslogd 1.3-3#33.1: restart. Nov 17 06:46:01 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.152. 100:137 171.66.255.255:137 L=78 S=0x00 I=15071 F=0x0000 T=128 (#53) Nov 17 06:46:02 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.152. 100:137 171.66.255.255:137 L=78 S=0x00 I=15072 F=0x0000 T=128 (#53) Nov 17 06:46:03 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.152. 100:137 171.66.255.255:137 L=78 S=0x00 I=15073 F=0x0000 T=128 (#53) Nov 17 06:46:04 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.156. 64:138 171.66.255.255:138 L=237 S=0x00 I=48336 F=0x0000 T=128 (#53) Nov 17 06:46:16 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.152. 100:137 171.66.255.255:137 L=78 S=0x00 I=15075 F=0x0000 T=128 (#53) Nov 17 06:46:16 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.152. 100:137 171.66.255.255:137 L=78 S=0x00 I=15076 F=0x0000 T=128 (#53) Nov 17 06:46:17 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.152. 100:137 171.66.255.255:137 L=78 S=0x00 I=15077 F=0x0000 T=128 (#53) Nov 17 06:46:24 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.152. 100:137 171.66.255.255:137 L=78 S=0x00 I=15078 F=0x0000 T=128 (#53) Nov 17 06:46:25 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.152. 100:137 171.66.255.255:137 L=78 S=0x00 I=15079 F=0x0000 T=128 (#53) Nov 17 06:46:25 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.152. 100:137 171.66.255.255:137 L=78 S=0x00 I=15080 F=0x0000 T=128 (#53) Nov 17 06:46:34 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.152. 81:138 171.66.255.255:138 L=240 S=0x00 I=5560 F=0x0000 T=128 (#53) Nov 17 06:46:34 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.152. 81:137 171.66.255.255:137 L=78 S=0x00 I=5562 F=0x0000 T=128 (#53) Nov 17 06:46:35 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.152. 81:137 171.66.255.255:137 L=78 S=0x00 I=5563 F=0x0000 T=128 (#53) Nov 17 06:46:35 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.152. 81:137 171.66.255.255:137 L=78 S=0x00 I=5564 F=0x0000 T=128 (#53) Nov 17 06:46:43 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.157. 111:138 171.66.255.255:138 L=229 S=0x00 I=52182 F=0x0000 T=128 (#53) Nov 17 06:46:44 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.156. 64:137 171.66.255.255:137 L=78 S=0x00 I=48337 F=0x0000 T=128 (#53) Nov 17 06:46:44 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.156. 64:137 171.66.255.255:137 L=78 S=0x00 I=48338 F=0x0000 T=128 (#53) Nov 17 06:46:45 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.156. 64:137 171.66.255.255:137 L=78 S=0x00 I=48339 F=0x0000 T=128 (#53) Nov 17 06:46:45 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.152. 100:137 171.66.255.255:137 L=78 S=0x00 I=15082 F=0x0000 T=128 (#53) Nov 17 06:46:46 towanda kernel: Packet log: input DENY eth0 PROTO=17 171.66.152. 100:137 171.66.255.255:137 L=78 S=0x00 I=15083 F=0x0000 T=128 (#53)