Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
The advantage is that you don't need to be the root user. In your example, the route was incomplete. Using the -I option, you get all of the addresses.
Note: the -i and -I options were exchangedfor compability with LBL traceroute
Use -I for ICMP, and -i <ifname> to specify the interface name
traceroute to www.google.com (18.104.22.168), 30 hops max, 40 byte packets using ICMP
6 te-4-4.car2.Seattle1.Level3.net (22.214.171.124) 68.047 ms 66.934 ms 65.645 ms
7 ae-24-52.car4.Seattle1.Level3.net (126.96.36.199) 64.521 ms 63.325 ms 125.364 ms
8 SPLICE-COMM.car4.Seattle1.Level3.net (188.8.131.52) 148.759 ms 148.715 ms 147.622 ms
9 184.108.40.206 (220.127.116.11) 146.415 ms 145.330 ms 144.241 ms
ICMP tends to be a router or switch setting that may be selected to be dropped when traffic numbers reach a pre-determined point. Say when tcp traffic is 40% limit icmp traffic. ICMP would be a very subjective traffic on any network that you don't fully control.
ICMP echo request/replies are normally blocked on the routers/gateways. So if you use the echo request for traceroute, you wont get a proper reply most of the time. But it will work perfectly if you use UDP/TCP way.