WebTTL values are determined by the remote machine. For example, if you ping a Linux machine, its originating TTL value is 64. Depending on how many routers it crosses to get back to you, the TTL is deducted by a value of 1. So if you ping 8.8.8.8, which is Googles nameserver, it has an originating value of 128. WebTTL always means the same. It needs to be high enough so that it can reach the destination you are talking to. If that destination is on your local LAN then TTL=1 is enough. – Sander Steffann Jun 28, 2014 at 19:20 Ty Ricky, in the case of NTP what should be the TTL value ? will it be 31 or 255. Ty – dillip_beta Jun 30, 2014 at 3:53
DNS TTL best practices: Understanding and configuring DNS TTL
WebJun 29, 2024 · Usually this NVRAM variable works (except for PPoE interfaces) to identify the WAN interface e.g. Code: iptables -t $TABLE -A $CHAIN -o $ (nvram get … WebYou probably need to hardcode the interfaces and put it in /etc/config/firewall.user on openwrt. Also, note the PREROUTING rule is the only one relevant for modifying TTL. Instead of using ttl-inc, you can also specify a particular TTL to be applied - google iptables+ttl+prerouting to find the docs. Cheers! 5 tacticaltaco • 5 yr. ago k w greenery janesville wisconsin
Configuring WAN settings in Asuswrt-Merlin for TM UniFi
WebJun 19, 2024 · Generally, we recommend a TTL of 24 hours (86,400 seconds). However, if you are planning to make DNS changes, you should lower the TTL to 5 minutes (300 seconds) at least 24 hours in advance of making the changes. After the changes are made, increase the TTL back to 24 hours. WebVariable TTL inside a LAN. I recently discovered that ping my local router, returns different TTL values . The ping 3 switch must pass through before reaching the router, there may … WebApr 14, 2014 · TTL values are different for different Operating Systems. So, you can determine the OS based on the TTL value. You can get the TTL value by pinging an address. Here is the output got by pinging "subinsb.com" on my system : PING subinsb.com (108.162.199.61) 56(84) bytes of data. 64 bytes from 108.162.199.61: icmp_seq=1 ttl=57 … k w news kitchener