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I use the auto generated rules that come from OpenWRT as an example of NAT reflection (NAT loopback). So let's pretend there's a network 192.168.1.0/24 with two hosts (+ router): 192.168.1.100 and 192.168.1.200. The router has two interfaces LAN (br-lan) and WAN (eth0).

In LuCI, if I create a wan forwarding rule from port 2222 to port 22 on any router interface, and I check NAT Loopback, the reflection rules are not created in iptables. This broke somewhere between r42475 and r42682 .

NAT reflection should make this possible. On a normal OpenWRT/LEDE setup, these port forwards should automatically include reflection. "Enabled" ...

Installing and Using OpenWrt ... With NAT reflection enabled by default for this redirect rule, it yields 3 iptables rules:

09.05.2016 · NAT Reflection oraz NAT Loopback w OpenWRT Spis treści Mechanizm NAT Loopback nazywany też NAT Reflection lub NAT Hairpinning często jest pomijany przy omawianiu tematyki firewall'a. Chodzi generalnie o możliwość uzyskiwania dostępu do zasobów w sieci lokalnej po adresie, który jest na zewnętrznym interfejsie sieciowym routera.

Hello, I am a new OpenWRT user (long time TomatoUSB user) that runs a gaming server on my network and i am having a heck of a time with NAT ...

Feb 26, 2012 · 26 Feb 2012, 05:18. Hi there! I'm having a problem with NAT reflection in my setup: My DIR-825 will not allow me to have a VLAN over its ehternet wan port because it is not connected to the internal switch, so my WAN interface is connected to ethernet port 3 in the switch. As a result, although everything seems fine (can get to the Internet ...

This rule works fine in a router over here running LEDE 17.01.4 config redirect option target 'DNAT' option src 'wan' option dest 'lan' ...

"NAT Loopback" as implemented in OpenWrt refers to the host IP itself only · :bulb: · This rule can be duplicated as needed for other VLANs/zones, ...

May 06, 2020 · Hey all, first time needed to post to configure something that up untill now didn't find a solution for. Running OpenWrt 18.06.1 r7258-5eb055306f on linksys 1900acs for few years now. I've switched this week my isp to get higher down/up speed. (moved from pppoe to dchp docsis3) I have several services on my lan that i access with ddns from outside and inside the lan. Up until now every thing ...

I use the auto generated rules that come from OpenWRT as an example of NAT reflection (NAT loopback). So let's pretend there's a network ...

This seems like it's a reply from your web server, as the source IP is a private address to a Public...it also reminds me of an OpenWrt security ...

06.05.2020 · Hey all, first time needed to post to configure something that up untill now didn't find a solution for. Running OpenWrt 18.06.1 r7258-5eb055306f on linksys 1900acs for few years now. I've switched this week my isp to get higher down/up speed. (moved from pppoe to dchp docsis3) I have several services on my lan that i access with ddns from outside and inside the lan. Up …

Dec 16, 2021 · reflection: boolean : no : 1: Activate NAT reflection for this redirect - applicable to DNAT targets. reflection_src: string : no : internal: The source address to use for NAT-reflected packets if reflection is 1. This can be internal or external, specifying which interface’s address to use. Applicable to DNAT targets. reflection_zone: list ...

In LuCI, if I create a wan forwarding rule from port 2222 to port 22 on any router interface, and I check NAT Loopback, the reflection rules are not created in iptables. This broke somewhere between r42475 and r42682 .

11.02.2021 · This is the most used and useful NAT function. It translates a local private network on the LAN -side to a single public address/port num on the WAN -side and then the reverse. It is the default firewall configuration for every IPv4 router. As a result it is a very simple fw3 configuration The LAN -side uses a private network .

I am trying to work out the correct way to support NAT reflection on my ... accessible via a static route (through a second openwrt router).

"NAT Loopback" as noted in OpenWrt works on the specific IP in question. I believe this term has other definitions on different router distros ( ...

Hey all, first time needed to post to configure something that up untill now didn't find a solution for. Running OpenWrt 18.06.1 ...

Feb 11, 2021 · fw3 NAT Configurations. The fw3 application has extensive support for NAT filterning. NAT is a powerful feature and is credited with extending the life of the IPv4 protocol. As with other firewall section, this section will not delve into NAT background and theory. Some useful links for this are: OpenWrt supports DNAT, SNAT, MASQUERADING.

But there's also two other rules, which are responsible for NAT reflection. One of them isn't that clear to me as the ones above. So the first rule looks like this: iptables -t nat -A PREROUTING -i br-lan -s 192.168.1.0/24 -d 82.120.11.22/32 -p tcp -m tcp --dport 80 -j DNAT - …

16.12.2021 · reflection: boolean : no : 1: Activate NAT reflection for this redirect - applicable to DNAT targets. reflection_src: string : no : internal: The source address to use for NAT-reflected packets if reflection is 1. This can be internal or external, specifying which interface’s address to use. Applicable to DNAT targets. reflection_zone: list ...