Date: Tue, 07 Mar 1995 12:25:34 +0100 From: Andres Vega Garcia <Andres.Vega_Garcia@sophia.inria.fr> To: nlawson@statler.csc.calpoly.edu (Nathan Lawson) Cc: questions@FreeBSD.org Subject: Re: tcpdump work? Message-ID: <199503071125.MAA10762@django.inria.fr> In-Reply-To: your message of Mon, 06 Mar 1995 16:07:01 PST.
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: nlawson@statler.csc.calpoly.edu (Nathan Lawson) wrote:
>> I realized I can display just the packets for my PC but,
>> if I try with other host it doesn't work.
>
>The "-p" option turns on the promiscuous mode for your interface.
>
I have the bpf support and I had the promiscuous mode support
for the ep driver but the thing still doesn't work, am I missing something
else?
Thank you.
====== doesn't work
pci3-1002-/usr/user/avega# tcpdump host pax and merlot
tcpdump: listening on ep1
====== in another xterm while in tcpdump:
[pci3-129-~:> ifconfig ep1
ep1: flags=4963<UP,BROADCAST,NOTRAILERS,RUNNING,PROMISC,SIMPLEX,LINK2> mtu 1500
inet 138.96.24.100 netmask 0xfffff800 broadcast 138.96.31.255
=======from dmesg:
3 3C509 board(s) on ISA found at 0x310/10/10 0x320/11/11 0x330/15/15
ep0 not found at 0x300
ep1 at 0x310-0x31f irq 10 on isa
ep1: aui/bnc/utp[*AUI*] address 00:20:af:05:09:a0
bpf: ep1 attached
=======from my code if_ep.c
....
void epsetfilter(sc)
struct ep_softc *sc;
{
struct ifnet *ifp = &sc->arpcom.ac_if;
unsigned short filter = FIL_INDIVIDUAL | FIL_BRDCST;
if (ifp->if_flags & IFF_MULTICAST)
filter |= FIL_GROUP;
if (ifp->if_flags & IFF_PROMISC)
filter |= FIL_ALL;
outw(BASE + EP_COMMAND, SET_RX_FILTER | filter);
}
....
case SIOCSIFFLAGS:
if ((ifp->if_flags & IFF_UP) == 0 && ifp->if_flags & IFF_RUNNING) {
ifp->if_flags &= ~IFF_RUNNING;
epstop(ifp->if_unit);
epmbufempty(sc);
} else if (ifp->if_flags & IFF_UP && (ifp->if_flags & IFF_RUNNING) == 0)
epinit(ifp->if_unit);
else {
epsetfilter(sc);
epsetlink(sc);
}
break;
Andres
------------------------------
INRIA Sophia-Antipolis, France
avega@pax.inria.fr
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