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Date: Tue, 18 Apr 2006 00:09:42 -0400
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Subject: Re: Strange NMAP results
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I agree. I actually don't have anything for lo0 defined in rc.conf, but
it still gets initialized.

You can always try something like "ifconfig lo0 inet 127.0.0.1 netmask
255.255.255.0" to initialize it manually. Otherwise, try Mike's
suggestions and see what happens.

bsdlogical

Mike Edenfield wrote:

> Derrick Edwards wrote:
>
>>
>> focus# ifconfig -a
>> dc0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>>         options=8<VLAN_MTU>
>>         inet6 fe80::250:2cff:fe07:937d%dc0 prefixlen 64 scopeid 0x1
>>         inet 192.168.1.109 netmask 0xffffff00 broadcast 192.168.1.255
>>         ether 00:50:2c:07:93:7d
>>         media: Ethernet autoselect (100baseTX <full-duplex>)
>>         status: active
>> plip0: flags=108810<POINTOPOINT,SIMPLEX,MULTICAST,NEEDSGIANT> mtu 1500
>> lo0: flags=8008<LOOPBACK,MULTICAST> mtu 16384
>
>
> This is odd.  Your loopback adapter has no IP addresses bound to it. 
> That would explain why you can't send to localhost, but not how it
> ended up in this condition.
>
> I suspect there is something in your /etc/rc.conf that is preventing
> the default ifconfig_lo0 settings from being applied.  First guess: do
> you have network_interfaces="" set in /etc/rc.conf, and if so, did you
> forget to include lo0 in the list?
>