ASUS RT-AC68U Cut Through Forwarding I'm having an issue with this router, not sure if this is the correct place or not as my issue is not directly related to a wireless issue. Example: Asus RT-AX3000 with LAN 10.43.65.1/24. Please choose to accept or block cookies by accessing the options on the left column. Unfortunately, Apple use different terms and have different functionality – remember these don't use standard networking protocols – well not all of them – Apple use NAT-PMP – a customised / altered version of NAT as well. While Nextiva recommends the official ASUS-RT firmware directly received from ASUS, this article will cover similar settings for the Asuswrt-Merlin. My problem is I am on a private IP from my ISP. hw nat acceleration does not take care about any special firewall settings. I am using ethernet from modem to router so the IP range should originate from the modem (as it did in original configuration). Not quite sure what this partly closed source service is for, but it eats a fair amount of CPU and RAM. The AsusWrt-Merlin firmware was developed with the primary goal of boosting the original ASUS firmware, fix bugs and also add new improvements. When I use PPTP my wan address become public ip but all devices running Netflix stop working due to my VPN being blocked by Netflix. After a few months of investigation, I discovered that NAT Acceleration for some reason is preventing Wi-Fi Calling from working. Enable Ping Response Please check out. Asuswrt-Merlin provides you the software option to turn off the LED lights by enabling Stealth Mode in miscellaneous options. This means Asuswrt-Merlin retains full support for NAT acceleration (sometimes referred to as “hardware acceleration”), enhanced NTFS performance (through the proprietary drivers used by Asus from either Paragon or Tuxera), and the Asus exclusive features such as AiCloud or the Trend Micro-powered AiProtection. I assumed using a new router, I would not have to change the modem config, but again technology has a few surprises. (RT-AC86U) - NEW: Added option to disable the Asus NAT tunnel service under Other Settings -> Tweak. if you have it connected from the asus wan to modem ethernet then it shouldnt matter, but i would disable it to make sure nothing conflicts. This all started after having my Apple / Thompson working perfectly (seemed perfect) with my Xbox One console – the NAT was Open in its original configuration before the new router. Xbox One has Strict Nat. Apple tvs, iMac, laptops and other devices are on wifi. Reply. Now the NAT / routing has been shuffled onto the Asus router – its doing all the hard work. I agree with your info, and agree the Asus is a lot more powerful than Apple, however one does question if the original AE and Modem were working fine with the previous config and had open NAT on XBO, with no modem changes, then why all of a sudden to I have to change the modem config from its current setting? I heard from a user that the NAT Acceleration doesn't work in Merlin's firmware for Asus routers, the user is owning a Asus RT-AC66U and I own a Asus RT-AC88U and in mine I can see NAT Acceleration under Advanced Settings --> LAN --> Switch Control --> NAT Acceleration: Auto CTF (Cut Through Forwarding) is enabled. Geil Dragon 4x8GB@3000mhz 15-17-17-35 (GWW416GB3000C15DC), PowerColor Radeon RX 6800 (Ref) / Sapphire Radeon RX 590 Nitro+ Special Edition 8GB, OS/Games:Samsung 970 EVO 1TB |Sabrent Rocket 2TB |Data: 850EVO 1TB, 2xWD 4TB, 1xWD 10TB & WD 1TB, Asus ROG Strix XG27UQ 4K@144hz | LG 55UK6100PLB IPS 4K HDR. The NAT Acceleration is now changed to either Auto or Disable. This is a feature for you to conceal the router, particularly at night or in dark condition. If you don't reboot, the control will appear to not have changed, but the mode, in fact, will have changed. i have already explained this but in point form, apple is set in ap mode ( this was an automatic setting when you first connected the apple to the thompson ), the asus comes standard set in router mode to make it work in the fashion the apple is working in you must manually set it to ap mode, in both cases above the thompson was doing all the hard work including nat / dhcp etc etc , by introducing the asus in router mode you have added an extra nat , eg dual nat, by bridging the thompson you have now removed its nat and the asus is doing all the hard work including nat and dhcp an wireless, if you wish to run the apple with the thompson bridged you need to factory reset the apple and do its initial setup again , this time the apple will detect a bridged modem in front of it and set it self to router mode. … Step 2 Click NAT on the left panel . For a better experience, please enable JavaScript in your browser before proceeding. I am using ethernet from modem to router so the IP range should originate from the modem (as it did in original configuration). Also, all these questions started because my XBO shows a NAT of strict (no modem change), yet the AirPort Extreme showed NAT of open – why? Asus has had strong support for OpenVPN built into their routers for quite some time, and the ease-of-use of the … Why is the Apple Router showing the correct IP range, but not the new Asus? I use to use normal routers like Belkin etc, and have only just switched back now after use of using the Apple router so Im still use to its terms and ways. If you are using this router in Simple mode, and you do not see traffic (full traffic) from any of the devices, you may need to disable NAT acceleration like below. For additional assistance, please see the Asuswrt-Merlin Forums. 17-03-2015, 09:58 AM #2359: tuapuikia. Agreed, the Asus is doing all the number crunching and all working very well indeed, and so many more options. I was told to use Repeater mode but this only works if using an existing wireless network (not ethernet). hw nat acceleration might bring some benefits, but some really poor problems. Please refer to video above or follow below steps to setup internet connection for your router. Step1: Please connect your computer to wireless router via wired … I prefer if possible not to change the modem settings. I even then added port forwarding as listed here: https://support.xbox.com/en-US/xbox-one/networking/network-ports-used-xbox-live – still Strict. This is with the modem running in Bridge mode, acting as a modem only. However when I turn on cut through forwarding which is supposed to reduce latency I guess for gaming, my port forwarding (virtual servers) cannot be seen from outside my local network. Apple refer to this as Bridged Mode (PPPoE disabled) hence why the term is a little confusing, but on Apple's hardware the IP range starts with 10.x.x just like the modem. They are both routers but obviously one is more powerful than the other, but why does that mean I have to change my modem config if it was working originally without such a change? ctf is a software hotpath to accelerate bridged networks. This means Asuswrt-Merlin retains full support for NAT acceleration (sometimes referred to as "hardware acceleration"), enhanced NTFS performance (through the proprietary drivers used by Asus from either Paragon or Tuxera), and the Asus exclusive features such as AiCloud or the Trend Micro-powered AiProtection. Step 3 Find the radio button of “Current NAT Status”. 1. Thompson single port modem -> Ethernet (not wireless) -> Asus RT-AC68U. My Internet throughput decreased from an average of about 270 Mbps to 160 Mbps. The issue occurs under the latest versions of ASUSwrt and ASUS-Merlin on my RT-AC3100. This holding period may require more router’s CPU use. Please refer to, if you don’t know how to login on the management page.. Junior Member . Correct, otherwise you get dual nat and that's what I thought I had, however again Apple gives you an alert "double NAT", where as with normal routers you have to sit down and find the problem. it … Also bear in mind the Apple routers don't use normal NAT, they use their own variant NAT-PMP which operates slightly differently. Can anyone explain this for me? (Turned on by default in Merlin firmware 384.5). there is no real need to disable dhcp in a bridged modem as bridging its self bypasses the router and dhcp server anyway, see how easy that was :) , sometimes its best just to follow the advice. First thing I would do is reset the router to full router mode and turn off everything except the firewall and wifi and NAT Acceleration. Log is flooded with "kernel: osl_pktfastfree: free skb for NULL ctfpool" messages, connections are unstable. These types are selected from the dropdown menu beside WAN Connection Type. Initial results posted turned out to be with NAT acceleration accidentally disabled due to a UI bug. How do I disable the NAT on the Asus RT-AC68U? Asuswrt-Merlin ===== This is an enhanced version of Asuswrt - the firmware used by all recent Asus routers. I use Purevpn. If NAT is turned off, the device will work on pure-router mode which can transmit data only. Section: Updating the firmware used by all recent Asus routers not to... Apple router showing the correct IP range, but some really poor problems NAT is turned,. Not want to disable the Asus router – its doing all the hard work default in Merlin firmware 384.5.... Fix issues and bring some minor functionality adjustments to the XBO – disable nat acceleration asus merlin Strict only, even entered ports... 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