Not seeing data on an unnumbered interface...

[Jack Vogel]

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"
> >
> >
>