Tracert

[jurtje]

Hey guys,

In the last couple of days I noticed that my internet was slower than a freakin' 33.6 Kbps modem. First I blamed OCIA.net, because I mainly browse this site obviously. But then I found out everything was slow as hell. So I guess I owe you all an apology.

Anyway, just called the ISP (terra.cl) and they told they were having mayor problems the last couple of days and they asked me to mail them a tracert of yahoo.com. So I did.

But I never used this command before and I was wondering what it exactly does and how it can be used for troubleshooting purposes.

anybody knows?

[KryoNexus]

tracert stands for Trace Route

basically, it is an extended ping session. it pings the first available node, grabs the ping time to there, then goes to the next node (on it's way to the destination, in your case yahoo.com). it grabs ping times for every stop on the way until it hits the destination.

if a high ping time to one specific spot shows up, or if can't reach a spot, then that is where the problem lies.

also, if you are taking more than 15 hops or so to any specific location, then somebody is probably not doing the most efficient routing somewhere up the line.

[Beemer]

Yep, what he said :wink:

[jurtje]

Thanks guys.



http://server6.uploadit.org/files/jurtje-tracert2.jpg



So I guess this isn't good :roll:

[siq]

woow... those are some horrible pings...

seems like you keep hitting some bad routes obviously.

your isp said it was them causing the lag?

[jurtje]

Yep, something about a bad connection that has been down for days and they aren't able to get it up.

[T-shirt]

who/what is Hop 5? Router or dsl/cable modem? It would appear your ISP has a serious problem

[Beemer]

Looks like its downhill at hop 5. I wanted to check www.ocia.net from here but we cant tracert off campus - firewall is not allowing icmp due to recent viruses.... oh well.