[Serusers] checking source ip and dest ip

Greger V. Teigre greger at teigre.com
Tue Jun 20 21:26:07 CEST 2006


Yes, and your network is in the RFC1918 (private) address space, so you 
can use the same logic (even without change as you want to proxy when 
the address is on your network).
g-)

İlker Aktuna (Koç.net) wrote:
> In fact, I am not looking for "if address is NATed or not", I need to 
> check if address belongs to my network or not.
>  
> what do you mean by RFC1918 addresses ?
>  
> Thanks,
> ilker
>
> ------------------------------------------------------------------------
> *From:* Greger V. Teigre [mailto:greger at teigre.com]
> *Sent:* Tuesday, June 20, 2006 1:40 PM
> *To:* İlker Aktuna (Koç.net)
> *Cc:* serusers at iptel.org
> *Subject:* Re: [Serusers] checking source ip and dest ip
>
> Why not test for RFC1918 addresses? That's what the onsip.org 
> nat-handling scripts do. A NATed destination is determined by a flag 
> in the location record and the src ip is checked with nat_uac_test().  
> It will give a more robust NAT handling that testing on IP addresses 
> for parts of the RFC1918 addresses.
> The problem has already been solved, why not reuse? ;-)
> g-)
>
> İlker Aktuna (Koç.net) wrote:
>> Hi,
>>  
>> I need to check source ip of a SIP message and also destination IP to 
>> which the message will be sent.
>> i.e. I will use mediaproxy only if the one of the ip addresses match 
>> 10.0.0.0 / 255.0.0.0
>>  
>> is it possible ?
>>  
>> Thanks,
>> ilker
>> C "-//W3C//DTD HTML 4.0 Transitional//EN">
>> In fact, I am not looking for "if address is NATed or not", I need to 
>> check if address belongs to my network or not.
>>  
>> what do you mean by RFC1918 addresses ?
>>  
>> Thanks,
>> ilker
>>
>> ------------------------------------------------------------------------
>> *From:* Greger V. Teigre [mailto:greger at teigre.com]
>> *Sent:* Tuesday, June 20, 2006 1:40 PM
>> *To:* İlker Aktuna (Koç.net)
>> *Cc:* serusers at iptel.org
>> *Subject:* Re: [Serusers] checking source ip and dest ip
>>
>> Why not test for RFC1918 addresses? That's what the onsip.org 
>> nat-handling scripts do. A NATed destination is determined by a flag 
>> in the location record and the src ip is checked with 
>> nat_uac_test().  It will give a more robust NAT handling that testing 
>> on IP addresses for parts of the RFC1918 addresses.
>> The problem has already been solved, why not reuse? ;-)
>> g-)
>>
>> İlker Aktuna (Koç.net) wrote:
>>> Hi,
>>>  
>>> I need to check source ip of a SIP message and also destination IP 
>>> to which the message will be sent.
>>> i.e. I will use mediaproxy only if the one of the ip addresses match 
>>> 10.0.0.0 / 255.0.0.0
>>>  
>>> is it possible ?
>>>  
>>> Thanks,
>>> ilker
>>
>>
>> <http://387555.sigclick.mailinfo.com/sigclick/02090600/07064D00/01080049/0011115231.jpg>
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