Re: IPTables

[Amos Jeffries <squid3@treenet.co.nz>]

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On 14/04/2012 11:54 a.m., nullv@gmx.com wrote:
> It can't be. it's a link-local address

The difference between IPv4 and IPv6. IPv4 has no link-local limitation 
outside of 127.0.0.0/8 built into the hardware, it *can* leak into the 
WAN if you configure things non-standard.

AYJ

> ------Original Message------
> From: Ethy H. Brito
>
> On Wed, 11 Apr 2012 15:03:46 +1200
> Al Grant wrote:
>
>> Hiya All,
>>
>> I am after a little guidance please on the following problem:
>>
>> My topology is as follows:
>>
>> inet----router 192.168.1.254-------wlan0 192.168.1.71&&  eth0
>> 192.168.70.121------ip camera 192.168.70.140:80
>>
>> Note:
>>
>> (1) eth0 and wlan0 are on a PC running Ubuntu.
>>
>> (2) Port 5555 on the router is forwarded to 80 on 192.168.1.71
>>
>> (2) in sysctl I have set sysctl net.ipv4.ip_forward=1
>>
>> Now what I need to do is to be able to access the IP camera from the
>> inet.
>>
>> So I have tried adding IPTables:
>>
>> iptables -t nat -A PREROUTING -i wlan0 -d 192.168.1.71 -p tcp --dport
>> 5555 -j DNAT --to 192.168.70.140:80
>>
>> Now this should allow me to access the camera by pointing a web
>> browser to the real world public ip on port 5555, however I get page
>> cannot be displayed.
> Hi
>
> just to be sure: 192.168.1.71 is NOT your "real world public ip", is it?
>
> Ethy
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