Not seeing data on an unnumbered interface...

[Kurt Buff]

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
>> >> _______________________________________________
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>> >> http://lists.freebsd.org/mailman/listinfo/freebsd-net
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>> >
>> >
>
>