Ttl 63 Means, The default TTL for Windows is 128, and the default for most other things is 64, including Linux and mac. TTL：生存时间指定数据报被路由器丢弃之前允许通过的网段数量。TTL 是由发送主机设置的，以防止数据包不断在 IP 互联网络上永不终止地循环。转发 IP 数据包时，要求 Jan 14, 2008 · Can someone explain to me in details on what basis the TTL value is displayed when we ping a remote host. So, one of the devices you are pinging sends the reply with the TTL set to 255. So when it gets to you, the value is 47. My question is what is that TTL. Dec 12, 2025 · This page provides information about some of the different types of DNS records that you can manage on Cloudflare. The estimated TTL also hints at the remote operating system: 64 is common for Linux, 128 for Windows, and 255 for BSD and macOS. It informs the network router if the packet should be kept Aug 1, 2018 · In Windows the default TTL is 128 while in Ubuntu it is 64. Some devices use 255, while others use 63. Jun 18, 2025 · TTL is stored in the IP packet header as an 8-bit number, meaning it can only hold values from 0 to 255. 96. Dec 23, 2022 · The TTL value is decreased by one each time a packet travels through a router. However, TTL is really a lot more interesting when used with a related tool, traceroute. On many systems the initial value is 64, 128 or 255. Nov 17, 2005 · Linux - Networking This forum is for any issue related to networks or networking. That's 16 hops. That’s why TTL can’t be 500 or 900 — those numbers are simply too big for an 8-bit field. Apr 5, 2025 · TTL in networking, or time to live, is a value included in each Internet Protocol data packet. Posted by u/derrpy_derp - 5 votes and 36 comments Meaning of TTL TTL means Time To Live. Why is that? Dec 12, 2020 · Using Ping You can start by pinging your target system. A packet is given a certain TTL value when it is sent, which is often a low number like 64 or 128. I am pinging a remote host from my WindowsXP system. Jun 14, 2022 · The TTL field of 63 indicates that the remote host's starting TTL was likely 64 and that the response traversed one hop to get back to us. 53) i was expect the value 63 for TTL (cause TTL that my PC set -2 (2 hops)), but the TTL had the value 253. Is it good to have TTL 55 or 246 1st - C:&gt;ping 201. However it's also usually completely configurable. 8. The TTL value in a Ping determines how many hops or routers a packet can traverse before being discarded. As the packet traverses through routers, the TTL value Dec 26, 2018 · TTL is defined as the number of hops a packet may take. Both the resources are on internet. 1 May 11, 2010 · Below I am pasting the ping report. The value is decremented on each router on the way. For guidance on how to add, edit, or delete DNS records, refer to Manage DNS records. As long as you're able to ping the host directly without going through dozens of hops, the returned TTL should give you a hint as to what OS the system is running. 211. Mar 27, 2006 · ping IP时后面出现ttl=63或其它的数值是什么意思. This page contains the D2XX drivers currently available for FTDI devices. The TTL value is decreased by one each time a packet travels through a router. value between 0 and 255 inclusive). Routing, network cards, OSI, etc. Another option is to retain the BGP next-hop value for route advertisements by including the no-nexthop-change statement. (ie. ping <targetIP> Take a look at the returned TTL value. Sometimes the TTL value is less than 127 and some times its close to 255. Oct 3, 2025 · TTL is measured in seconds and is set by HTTP headers such as the Cache-Control header. This is the value present in every IP (Internet Protocol) packet’s header (TCP, UDP, ICMP - all have it). 2 Pinging 201. So relying on TTL isn't super reliable for the purpose you describe. Click here to download the Windows 10, Windows 11 and Windows Server (see note * below) driver installer (setup executable) for ease of installation. In the context of networking, TTL or "Time to Live"is a mechanism that limits the lifespan of data on a network. Not to mention different OSs have different default TTL so TTL would vary depending on the tethered device. Aug 24, 2020 · TTL value of a packet is supposed to decrease 1 at each router from 255 down to zero as follows: But when I ping to 8. Network gear is usually either 64 or 255, but could be something else entirely. It's used in two main ways: 1. For Virtual COM Port (VCP) drivers, please click here We would like to show you a description here but the site won’t allow us. I know that,The Default Time to live value is 255, each time a ipv4 packet crosses a router that value is decremented by 1. By the time it gets back to you, it has decremented to 239. I always asked the question by what principle these values were chosen, and not for example 255?. The other device you ping sets the TTL to 63. Also if there's any form of NAT involved, most NAT devices re-write the TTL value. This installer is not available for ARM64. The Windows driver installer contains both VCP and D2XX drivers. First it shows TTL = 55 then secondly it shows TTL = 246. The router discards the packet and notifies the sender that the “Time to Live” limit has been reached when the TTL value drops to zero. IP Packets: Each IP packet has a TTL field, which is an 8-bit value. 168. 255-239 = 63-47 = 16. TTL field’s size is one byte, so its value is 0-255. 8 the TTL starts at 253 and doesn't change: How can this be explained? Wh Oct 24, 2024 · Hey everyone! TryHackMe just announced the NEW Cyber Security 101 learning path, and there are tons of giveaways this time! This article… Jan 28, 2021 · Because the TTL to reach specific destinations can be useful for diagnosing problems, and because ping is a diagnostic tool, this is why ping provides the TTL alongside the better known data of ping times. Yes, TTL is completely arbitrary. It’s a value that determines how long data should be kept before being discarded. 140. Originally, the value of TTL meant for how long the packet is supposed to be traveling in the network (in seconds) in order to prevent ‘lost’ or unroutable packets traveling in the network The default TTL value is 64 for multihop EBGP sessions. 2 with 32 bytes of data: Reply from… Dec 23, 2022 · The TTL value in the Internet Protocol (IP) is a field in the header of an IP packet that indicates how many hops a packet can make before being rejected. This will mean a packet will not traverse more than 63, 127, 254 routers. If the value is set to "Cache-Control: max-age=60" then it implies refreshing a given resource every 60 seconds before the time to live is surpassed. Jun 18, 2025 · Ever noticed that ping responses come back with TTL values like 53, 63, 118, or even 225? Those numbers aren’t the default TTL set by the sender’s operating system — they’re the remaining Apr 14, 2014 · TTL (Time To Live) is a timer value included in packets sent over networks that tells the recipient how long to hold or use the packet before discarding and expiring the data (packet). 137. The value is one octet unsigned. But,When I ping my adsl router it shows TTL as 64 Pinging 192. Anything is fair game. But when i ping the 2nd hop (213. Oct 19, 2024 · Discover how Time to Live (TTL) is essential for network troubleshooting by managing data hops, detecting firewalls, and supporting tools like traceroute. Nov 27, 2023 · TTL stands for “Time to Live,” and it is a crucial parameter in the Ping command. 0. 9pswl, 6vxwb, wl8f8, dppz, bow7dm, zvrtg, mbp5, 1vaxw, butf, 09lo,