Can anyone tell me why this bpf code doesn't work with FreeBSD...

Bill/Carolyn Pechter pechter at
Thu Jun 26 15:37:50 PDT 2003

I'm trying to get VAX emulation running on FreeBSD using simh from

The code has hooks for NetBSD and OpenBSD and Linux (uses libpcap on *BSD).

The code from the simh v3.0 simulator is as follows:

#if defined (__NetBSD__) || defined(__OpenBSD__)
 dev->handle = (void*) pcap_open_live(savname, bufsz, ETH_PROMISC, -1, errbuf);
#endif /* (__NetBSD__) || defined(__OpenBSD__) */

What's needed to get this to work on FreeBSD.  It appears in it's
default config to be unable to open the ethernet, even though it sees fxp0.

If I change the -1 to 1000 (picked this idea up from the tcpdump code
in src/contrib/tcpdump) it appears to open -- but nothing is passed.
(I used tcpdump to test if the VAX packets were getting out).

Any suggestions -- please?

I'm really looking forward to accessing the pseudo Vax over telnet... 

Bill Pechter
| Bill and/or Carolyn Pechter    |        pechter at        |
|   Bill Gates is a Persian cat and a monocle away from being a villain in  |
|   a James Bond movie              -- Dennis Miller                        | 

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