Is bpf a part of IPFW, or am I confused?
cswiger at mac.com
Wed Jan 5 12:19:23 PST 2005
On Jan 5, 2005, at 3:09 PM, Andreas Davour wrote:
> I have searched the handbook and the manpages and not really
> understood the role of bpf. Is it supposed to be enabled when I use
> IPFW or is it another beast altogether, best left undisturbed?
The BPF, or Berkeley Packet Filter, is really intended for use by
userland applications which want to perform network analysis and packet
filtering. IPFW and the other firewalls for FreeBSD are written as
kernel modules and thus deal with the network stack directly.
The current DHCP implementation (ISC's dhcpd and dhclient programs)
depends on BPF to work, so I would be cautious about removing it from
your kernel unless you are sure you won't need it.
More information about the freebsd-questions