On Dec 15, 2010, at 7:05 PM, Nat! wrote:

> 
> Am 15.12.2010 um 02:07 schrieb Dan Shoop:
> 
>> 
>> On Dec 14, 2010, at 5:52 PM, Nat! wrote:
>> 
>>> 
>>> Am 14.12.2010 um 22:28 schrieb Dan Shoop:
>>> 
>>>> 
>>>>> 
>>>>> I think it's fairly clever to use snmpwalk, with the result piped through
>>>>> 
>>>>> egrep -v 
>>>>> '^127\.0\.0.|^169\.254\.|^172\.3[0-1]\.|^172\.2[0-9]\.|^172\.1[6-9]\.|^192\.168\.|^224\.|^2[45][0-9]\.|^10\.'
>>>>>  
>>>> 
>>>> All you're doing is filtering out what may not be the WAN IP and it 
>>>> doesn't account for duplicates returned if the router has any additional 
>>>> VLANs that operate or VPNs. That could lead to additional false positives.
>>> 
>>> True, though aren't these also usually of the 172.31.xxx.xx variety ? At 
>>> least, in my experience they are.
>> 
>> Not at all. They could be RFC1918 addresses or public, depends in the 
>> network and CIDR blocks involved.
> 
> Yes, but then, academically speaking, it isn't guaranteed, that 
> whatismyip.com is picking up the correct address 

Yes, I suppose that could be true, but presumably when you're hitting these 
services you're not doing so from a proxy. Does curl respect a proxy data not 
specifically invoked? 

-d

------------------------------------------------------------------------
Dan Shoop
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aim: iWiring
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