Firewall Block Log

[peterwkc]

Dear all, I have block log like something below

rule 0.0.0.0:68   255.255.255.255:67   udp   Block bogon IPv4 networks from Intel_Igb1_LAN


Should i need to worry? What does this rule doing?

[peterwkc]

Anyone here willing to help?

[Fright]

its DHCP client DHCPDISCOVER request

What does this rule doing?

as a " Block bogon networks" option help message says
When set, this option blocks traffic from IP addresses that are reserved (but not RFC 1918) or not yet assigned by IANA. Bogons are prefixes that should never appear in the Internet routing table, and obviously should not appear as the source address in any packets you receive.

[peterwkc]

Why it will trigger this kind of packet into my firewall? What circumstances trigger it?