Not seeing data on an unnumbered interface...

[Kurt Buff]

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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>