Recommended Posts

I can't trace route anything...this is the same type of message I get with every website I try (and I've tried about 25).

C:\>tracert www.yahoo.com

Tracing route to www.yahoo-ht2.akadns.net [209.73.186.238]

over a maximum of 30 hops:

1 f1.www.vip.re3.yahoo.com [209.73.186.238] reports: Destination host unreac

hable.

Trace complete.

Link to comment
https://www.neowin.net/forum/topic/518593-tracert-problems/
Share on other sites

Destination Host Unreachable

This error message means that no local or remote route exists for a destination host at the sending host or at a router. Troubleshoot the local host or the router's routing table.

What is your gateway? If you do not have a gateway setting, then there is no way for you to get there.. So you get that error.

When you say you can not tracert, can you access the website? Are you using a Proxy? Can you ping the site by IP?

You can view your route table with the route print

You can view your gateway setting with ipconfig

where did I say anything about arp? Do you understand how tracert works?

http://www.microsoft.com/technet/prodtechn...s.mspx?mfr=true

Tracert

Tracert is a route tracing utility that display a list of near-side router interfaces of the routers along the path between a source host and a destination. Tracert uses the IP TTL field in ICMP Echo Requests and ICMP Time Exceeded messages to determine the path from a source to a destination through an IP internetwork.

If your router is not sending anything back, or blocks icmp -- I could see why the the command would choke.. Or if you have a firewall blocking net access to tracert.exe but allows ping.exe -- then that could cause you issues.

  BudMan said:

where did I say anything about arp? Do you understand how tracert works?

http://www.microsoft.com/technet/prodtechn...s.mspx?mfr=true

Tracert

Tracert is a route tracing utility that display a list of near-side router interfaces of the routers along the path between a source host and a destination. Tracert uses the IP TTL field in ICMP Echo Requests and ICMP Time Exceeded messages to determine the path from a source to a destination through an IP internetwork.

If your router is not sending anything back, or blocks icmp -- I could see why the the command would choke.. Or if you have a firewall blocking net access to tracert.exe but allows ping.exe -- then that could cause you issues.

Arp shows the routing table as well as route print, so that's why I said it. I understand tracert, otherwise I wouldn't be using it...

There is a difference between understanding the info it gives and how it works.. And sorry but the arp command does not show anything to do with your route table.. It shows your ARP table..

C:\>arp -a

Interface: 10.40.0.22 --- 0x3

Internet Address Physical Address Type

10.40.0.214 00-0f-1f-6b-e8-3b dynamic

10.40.0.218 00-11-43-d2-a2-8a dynamic

10.40.0.219 00-11-43-32-5a-b2 dynamic

10.40.0.233 00-11-43-37-93-50 dynamic

10.40.0.254 00-11-5d-46-a0-0a dynamic

It allows you to make static entries, etc.. but it has nothing to do with your route table.. or which machine might be your gateway, etc..

Is your router not reducing the ttl value? Or do you have a software firewall that could be blocking tracert.exe? Its possible to have your router modify the ttl values to get by some tricks some ISPs do to prevent you from using a NAT router to your connection, etc..

  Yorak said:

Nah the router isn't reducing the TTL value. I just use the firewall on the router combined with Windows Firewall, which doesn't have it blocked.

Um all routers should reduce the TTL value. I thought you said you understood how traceroute works? ;)

post-14624-1165272139_thumb.jpg

If yours is not, then that could be your issue - if your router is blocking ICMP or not sending out Time Exceeded messages, then this could be your issue.. Or if your firewall is blocking you from recv this info.

This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.