Unusual packet traffic

[bill at horne.net (Bill Horne)]

Hi, thanks for reading this.

I just added a firewall rule that logs any attempt to spoof IP
addresses. The rule logs any incoming traffic from RFC1918 (i.e.,
"detached network") addresses.

I got a lot of packets like this in the log today. At first glance, it
looks like someone is trying to connect a device that's setup for
BOOTP, but the source port is 67, not 68. The only thing I can think
of is that it's the cable company advertising DHCP services for the
cable modems.

Opinions?

Jan 11 15:18:43 billhorne kernel: IN=eth0 OUT=
MAC=ff:ff:ff:ff:ff:ff:00:b0:8e:f5:10:54:08:00 SRC=10.219.216.1
DST=255.255.255.255 LEN=360 TOS=0x00 PREC=0x00 TTL=255 ID=24721
PROTO=UDP SPT=67 DPT=68 LEN=340

Bill