Re: IPTables

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On 14/04/2012 11:54 a.m., nullv@xxxxxxx 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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