if i'm not mistaken, it's Berkeley Packet Filter.
I must do the same issue for dhcpd when i use many vlan interfaces and
PF :)
--
Cordialement,
Loïc BLOT, UNIX systems, security and network expert
http://www.unix-experience.fr
Le mardi 08 janvier 2013 à 20:39 +0100, Ulrich Drolshagen a écrit :
> Am 08.01.2013 19:48, schrieb Janne Johansson:
> > cd /dev
> > for i in $(jot 20 10); do ./MAKEDEV bpf${i} ; done
> > to make 20 more bpfs. Each tcpdump and dhcrelay will want one of their
> > own so you may need more dev-entries.
> Thank you, this did the trick. I really didn't know what "bpf" are and
> didn't think of devices.
> >
> >
> > 2013/1/8 Ulrich Drolshagen <u.drolsha...@t-online.de>:
> >> Hi,
> >>
> >> I am running an openbsd router attached to several vlans. On one of them
> >> there is running a box with an isc-dhcp server.
> >> For one of the vlans I have started a dhcrelay to forward the dhcp
> >> broadcasts of the respective subnet to the server
> >>
> >> dhcrelay -i vlan5 172.16.1.4
> >>
> >> This is working fine for some time now. If I try to start it a second time,
> >> I get this:
> >>
> >> root:42# dhcrelay -d -i vlan6 172.16.1.4
> >> Can't find free bpf: No such file or directory
> >> Jan 8 18:33:05 router dhcrelay: Can't find free bpf: No such file or
> >> directory
> >> exiting.
> >>
> >> To my understanding dhcrelay should support whatever vlan requires
> >> forwarding the broadcasts. For me it does not make sense to only support
> >> just one subnet. Or am I missing something here?
> >>
> >> Thank you for looking into this
> >>
> >> Ulrich
> >>
> >> --
> >> http://www.ulrich-drolshagen.de
