Not seeing data on an unnumbered interface...

Jack Vogel jfvogel at gmail.com
Mon Dec 14 19:57:18 UTC 2009


Hmmm, well there's a LOT of shared code changes between 7.1 and 8, and this
sounds like something in the device init.  I don't really have time to look
into the
difference right now,  you'll just have to live with the difference, sorry
:)

Jack


On Mon, Dec 14, 2009 at 11:52 AM, Kurt Buff <kurt.buff at gmail.com> wrote:

> Interesting.
>
> I'm doing nothing really very different on my 7.1R box, but don't have
> this issue.
>
> Oh, well - just something to keep in mind, I suppose.
>
> Kurt
>
> On Mon, Dec 14, 2009 at 11:48, Jack Vogel <jfvogel at gmail.com> wrote:
> > Usually assigning an address will bring it up, but you arent doing that,
> I
> > am
> > pretty sure using a pseudo device will always necessitating explicitly
> > bringing
> > it up, at least i know that is the case for VLANs also.
> >
> > Jack
> >
> >
> > On Mon, Dec 14, 2009 at 11:39 AM, Kurt Buff <kurt.buff at gmail.com> wrote:
> >>
> >> Sigh. Yes, that works.
> >>
> >> So, to expose even more of my ignorance, any thoughts on why it isn't
> >> up at boot?
> >>
> >> Kurt
> >>
> >> On Mon, Dec 14, 2009 at 11:35, Jack Vogel <jfvogel at gmail.com> wrote:
> >> > Not familiar with ntop, but I notice below that the em interface is
> not
> >> > UP,
> >> > what
> >> > if you `ifup em0` ?
> >> >
> >> > Jack
> >> >
> >> >
> >> > On Mon, Dec 14, 2009 at 11:29 AM, Kurt Buff <kurt.buff at gmail.com>
> wrote:
> >> >>
> >> >> All,
> >> >>
> >> >> I'm having a very strange problem. I'm running ntop - the unnumbered
> >> >> interface is not receiving any data.
> >> >>
> >> >> Running 'tcpdump -i em0' also gets no data. I am really baffled -
> I've
> >> >> tried it against a switch that I know has a correctly configured
> >> >> mirror port, as I have ntop running on another machine and that works
> >> >> fine in the same port, but it's running 7.1-RELEASE.
> >> >>
> >> >> Anyone have thoughts on this?
> >> >>
> >> >>
> >> >> # uname -a
> >> >> FreeBSD zntop.mycompany.com 8.0-RELEASE FreeBSD 8.0-RELEASE #0: Sat
> >> >> Nov 21 15:48:17 UTC 2009
> >> >> root at almeida.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
> >> >>
> >> >> # cat /etc/rc.conf
> >> >> hostname="zntop.mycompany.com"
> >> >> ifconfig_rl0="DHCP"
> >> >> ntpdate_enable="YES"
> >> >> ntpdate_flags="-b 192.168.10.191"
> >> >> sshd_enable="YES"
> >> >> ntop_enable="YES"
> >> >> ntop_flags="-d -u ntop -P /home/ntop/databases -K -L -t 6 -o -i em0
> -W
> >> >> 0"
> >> >>
> >> >> zntop# ifconfig
> >> >> em0: flags=8902<BROADCAST,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu
> 1500
> >> >>        options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
> >> >>        ether 00:1b:21:04:2a:c5
> >> >>        media: Ethernet autoselect (100baseTX <full-duplex>)
> >> >>        status: active
> >> >> rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> >> >> 1500
> >> >>        options=8<VLAN_MTU>
> >> >>        ether 00:0c:46:b3:43:53
> >> >>        inet 192.168.24.51 netmask 0xffffff00 broadcast 192.168.24.255
> >> >>        media: Ethernet autoselect (100baseTX <full-duplex>)
> >> >>        status: active
> >> >> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
> >> >>        options=3<RXCSUM,TXCSUM>
> >> >>        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
> >> >>        inet6 ::1 prefixlen 128
> >> >>        inet 127.0.0.1 netmask 0xff000000
> >> >>
> >> >>
> >> >> Kurt
> >> >> _______________________________________________
> >> >> freebsd-net at freebsd.org mailing list
> >> >> http://lists.freebsd.org/mailman/listinfo/freebsd-net
> >> >> To unsubscribe, send any mail to "
> freebsd-net-unsubscribe at freebsd.org"
> >> >
> >> >
> >
> >
>


More information about the freebsd-net mailing list