Extend the ttl value asus router Nov 20, 2024 · a. 7_2. com) and my password; run chmod a+rx /jffs/scripts/* navigate One way to test this if you plug the modem into a LAN port (not WAN) and then another computer connected to the ASUS (or even WiFi in most cases, the router page will just show the internet “isn’t working” if you’re stuck on the setup). Clever idea of your ISP :) Anyway if you use alternative router firmware like DD-WRT, OpenWrt, etc. Note: For some carriers, they will require the particular TTL and HL for internet connection. TTL and HL (IPV6 version of TTL) are just simple mangle commands in the iptables (firewall). I have the Asus axe11000 gaming router and there's an option to extend TTL value. Is that something good to enable? I can't manually input TTL value Jul 23, 2021 · The easiest way is via command line. Once To do that I need to have my my router send all data to the modem at a TTL value of 65. a. user' option fw4_compatible '1' 2. When the TTL is reduced to 0, the router does not drop the packet. Mar 17, 2018 · If I use the PING command from the router network tools and PING the WAN IP address, I receive replies with a TTL of 64. . asus. ) put this in /etc/config/firewall config include option path '/etc/firewall. Mar 17, 2018 · go to your router. c) all data sent from the router gets "processed" to my desired TTL. My understanding is that the router should renew at half the time of the lease -- so I should have a new lease well before the existing one expires. but it would allow clients behind it to reach the outside if they do indeed use TTL as a way to detect a router on the customer side. 10_2 Looking for a way to change the TTL value for all traffic that passes through the router to a custom value (65) so that I can set it up along with a mobile wired hotspot (netgear nighthawk M1). Apr 11, 2021 · Hey guys, Recently bought RT-AX86U to replace my old RT-AC87U. Feb 6, 2023 · After searching for updated nftable rules for TTL, I came across these links: 1. I have updated firmware on AX86U to the latest Merlin release 386. So far every time it happens, I swap in the Arris, release the DHCP lease, then plug in my Asus router, a few times now factory resetting it. Spoof LAN TTL Value: Overwrite outgoing packets TTL to the router default 64, making it look like there was no hop before hitting the ISP. com) and my password; run chmod a+rx /jffs/scripts/* navigate Debating now using the Arris as a router and my Asus routers as AP's, but I would prefer to just remove the Arris all together. d/firewall restart Not much info is I assume that your problem is, that all incoming packets have a TTL of 1 which results in their deletion by the router. b) the TTL value does not change after reboot. Since the router's WAN IP address is one hop away, and I expect TTL to get decremented by one for each hop, so a PING reply of TTL=64 would be correct if my router is transmitting with TTL of 65. ) create the file '/etc/firewall. com page; in administration>firmware upgrade, upload your file and flash; enable etend the ttl value and spoof lan ttl value in usb modem settings on your router. 2 and moved all configs manually (without using save-restore setting feature) since RT-AC87U is running on Merlin 384. Question: What code in Windows cmd do I need to upload so that: a) the TTL value is changed. I have disabled DDNS. A lot of detail here. Kinda weak security imho. Feb 18, 2020 · The best results I've had so far was to set the lease time on the B725 (in bridged mode) to 1 week, set the DHCP mode on my Asus to "normal" & set the "Extend TTL value" to Yes - this seems to have stopped the internet dropping problem but the Asus still reports the internet as "disconnected" on occasions - even though it isn't. It's a hack. Can someone clarify the difference between Extend and Spoof LAN TTL Values? 2. Neither resolved the issue. go to your router. If this is checked what TTL value is set? If using an ASUS Router behind a 4G Router which connects to am ISP that checks the TTL value, it would be handy to do this on the ASUS Router, as then any device that connects would appear on the 4G network A lot of detail here. Does Merlin have an easy way to change the TTL value for all devices going through the router? or is this a modify the IP routing table action? Nov 20, 2024 · a. Any and all help is appreciated. In that case a host on the inside would hit your router and get TTL decreased by 1. Is that something good to enable? I can't manually input TTL value Feb 18, 2020 · The best results I've had so far was to set the lease time on the B725 (in bridged mode) to 1 week, set the DHCP mode on my Asus to "normal" & set the "Extend TTL value" to Yes - this seems to have stopped the internet dropping problem but the Asus still reports the internet as "disconnected" on occasions - even though it isn't. com; ssh in (I used router. Jul 22, 2024 · a. , you should be able to modify the firewall (iptables) rules to set the TTL to a different value (iptables has a --ttl-set option). ) restart the firewall /etc/init. com page; enable ssh at administration>system in router. SSH in run the TTL and HL rules manually, then commit them to the firewall. user' 3. For Nov 11, 2022 · I upgraded my router from AX86u to GT- AX6000 and installed Merlin firmware 386. Under some connection types, you can get a new IP address by using Enable and Disable WAN. Where you can use the mangle table to re-write outgoing packets with TTL=64. I have tried enabling and disabling both "Extend the TTL value" and "Spoof LAN TTL Nov 20, 2024 · a. Apr 1, 2024 · Extend the TTL Value: Extended cache time. 13_10, so 80% of settings are the same. Nov 28, 2016 · New guy here, sorry for the dumb questions: 1. If your router can use the mangle command on the iptables (ip6tables for IPV6 firewall rules) then you can do it without a web GUI. Trying to get this set up for my parents as they have no other Jan 16, 2015 · There is a field under WAN settings on the ASUS Router that refers to "Spoof LAN TTL value". I noticed right away under Administration- System- a. I'm trying to set the TTL on the new router. Basic Config (a1) Enable WAN: Enable and disable WAN. (a2) Enable NAT: NAT(Network Address Translation) is a process used in routers to replace the address information of network packets with new address information. I am able to do so but I notice If i change a setting or reboot the router, the TTL reverts back to default. I'm not too familiar with TTL. ) put this line in it: nft add rule inet fw4 mangle_forward oifname usb0 ip ttl set 65 4. Apr 12, 2019 · Model: RT-AC68U Firmware: 384. I have tried both aggressive and normal DHCP query frequencies.
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