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Question : dhcpd error message : Can't find free bpf
- To: misc_(_at_)_openbsd_(_dot_)_org
- Subject: Question : dhcpd error message : Can't find free bpf
- From: "Victor Lee" <pleader_(_at_)_hotmail_(_dot_)_com>
- Date: Fri, 07 May 2004 23:49:04 +0800
First off, I want to say how much help I appreciate the help I've been
getting from you guys so far. Even a response from Theo. That's a treat!
Here's a problem I'm facing:
I have an OpenBSD box with 9 (yes 9) ethernet interfaces serving DHCP on 9
(yes 9) subnets.
When I set up dhcpd and run it, I get this message after the EIGHTH
interface is attached:
Can't find free bpf: no such file or directory
dhcpd will then exit.
Naturally, I upped the figure in "pseudo-device bpf 8" and recompiled kernel
to try and get more bpfs. I tried all sorts of figures, 10, 45, 90 ... but
the same error came up.
I also noticed that whatever I do, there's always exactly ten bpf devices
under /dev -- /dev/bpf0 to /dev/bpf9 .
My question is: have I just hit upon a software limit, or is there something
I can do about it without having to mess with code? (I know, I know,
recompiling kernel is messing with code, but YOU KNOW what I mean.)
Thank you very much!
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