Command-line utility used to get knowledge of the route followed by packets to a given destination.

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Tracking connection route with POST data

I have PHP running on client machines. They connect to a webserver using fopen and upload information stored in local databases. Everything works great, except for one group who uses AT&T cell ...
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63 views

Windows 7 CMD tracert gives totally different final IP to online traceroute

So, i'm pretty damn rusty with this stuff, and been up all night for client emergency, so excuse me if i'm typing gibberish and didn't find related search results./ I'm suddenly taking over a clients ...
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1answer
201 views

What does !A mean in traceroute?

Store_85000#traceroute 4.2.2.2 source vlan 1 Type escape sequence to abort. Tracing the route to b.resolvers.Level3.net (4.2.2.2) VRF info: (vrf in name/id, vrf out name/id) 1 10.32.5.57 76 msec 68 ...
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1answer
127 views

Reading tracert output - what does this address mean?

7 7 ms 2 ms 3 ms 83.149.18.148 8 * 78 ms * ae52.edge7.Frankfurt1.Level3.net [195.16.162.53] 9 * * * Request timed out. 10 80 ms 80 ...
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135 views

Tracert of a spoofed IP results in Infinite Loop

Our firewall picked up a spoofed IP address that caught my attention. When I did a tracert to the spoofed IP address I get what I think is an odd response. Tracing route to 192.168.1.7 1 1 ms ...
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2answers
399 views

Why do tracert latencies not add up to ping latency?

One might expect the sum of the tracert latencies to equal 267ms:
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3answers
83 views

How does tracerout determine end server point (hostname vs ip address)

Internally, how does traceroute make its requests, by hostname of ip address? I know that the traceroute command can either take a hostname or an ip address, but when a hostname is entered is that ...
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1answer
93 views

Traceroute to single IP from 2 different networks (one pass, another - fails)

traceroute from 2 different environments is giving different results. One is passed succesfully, the other one failed. I don't believe that would be our own switch/router - otherwise I would not be ...
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1answer
561 views

number of hops using tracert over vpn

I work for a small tech company that is signing up a new client that has two locations connected via a site to site VPN. If I run tracert from one pc to another pc at the remote office, there are no ...
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1answer
81 views

tracert.exe: Why doesn't RTT increase with each hop?

Internet is slow today. So, I ran tracert.exe against a nearby server (German edition of Windows XP): >tracert inka.de Routenverfolgung zu inka.de [193.197.184.1] über maximal 30 Abschnitte: ...
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1answer
53 views

If a request times out on an intermediate device, how are packets able to travel to the next device?

I noticed in many traceroutes that when * * * Request timed out appears somewhere in the middle hop, the packets are able to make it to the subsequent device. 3 13 ms 8 ms ...
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1answer
89 views

Why can't we contact a specific address range from inside our LAN?

We can't connect to a specific external server from inside our LAN. However we can connect to the same server from outside our LAN, at home, or using a mobile phone. It was working just fine for ...
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1answer
637 views

Packet routing on Windows server with two NICs

This problem has me stumped. I have searched on Google but there is neither any mention of this behavior nor any explanation. Maybe I am using wrong search words. I have read solutions to many ...
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2answers
115 views

How do I securely browse the internet (Network path, MITM attacks, rerouting the network) [closed]

All the local ISPs that I could have an account with, impose many restrictions against an average user, and to be precise and brief, a simple right like surfing the web securely and without any poking ...
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2answers
88 views

Find the WAN address range

I'm trying to find the WAN IP range for a network on another location. When I do a tracert on the LAN gw, the last hop is the adress is 79.161.2.255, This is the ip range belonging to the ISP, but I ...
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1answer
150 views

Putting router names in traceroute hops?

We have a number of sites that are interconnected via VPN tunnels. When troubleshooting issues I regularly find myself running traceroute to see the path the workstation takes to access a remote ...
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1answer
236 views

tracert on windows 7 64 bit always shows just one hop

What does this mean ? Windows 7 64bit, Russian c:\>tracert google.com Трассировка маршрута к google.com [74.125.143.113] с максимальным числом прыжков 30: 1 224 ms 186 ms 219 ms ...
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104 views

DNS Error: Whenever I tracert the web name it shows “able to resolve target system name”

I think something is wrong with my DNS file. Can someone help with the issue, my DNS is as follows example.com. 86400 IN SOA ns1.ip.secureserver.net. exampleemail.gmail.com. ( ...
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2answers
72 views

WHY Tracert.exe command takes longer to display results while the browser displays the same page in seconds [closed]

I am a newbie to networking. I tried using the tracert.exe command to google.com the results were displayed after 1 minute or so including the many hops. Whereas if I type Google.com in my browser ...
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2answers
119 views

Understanding how Tracert works

From what I gathered so far, Tracert works by sending 3 ICMP echo messages. Starting with a TTL value of 1. For each router the packet encounters, the TTL value will be decremented. For the 1st ...
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2answers
73 views

Experienced Lagging Issue on 2 x 2 MBps E1 link

From client pc to server (Windows Server 2008), the WAN connection is using 2 x 2 MBps E1 link. 1 <1ms <1ms <1ms 10.101.7.254 2 4ms 15ms 4ms ...
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1answer
131 views

Traceroute (tracert) anycast address on Windows strange behavior

Tracing route to d.resolvers.level3.net [4.2.2.4] over a maximum of 30 hops: 1 25 ms 27 ms 26 ms d.resolvers.level3.net [4.2.2.4] Trace complete. Tracing route to ...
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1answer
621 views

different between tracert(windows) and traceroute(linux)

I'm tracing some server between tracert(Windows) and traceroute(linux) in the same network. But the output is different. tracert can trace the target server. But traceroute can't. The traceroute ...
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2answers
293 views

Why this recursion in tracert hops?

After experiencing an extremely sluggish internet, 'connection refused','unable to negotiate link' and such across sites (fb, stackoverflow, yahoo, google amongst them) I took the liberty of hitting ...
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3answers
519 views

What are the proper contents of an ICMP message? (Buffer, Don't Fragment, etc..)

I'm creating a Tracert program and am wondering if the value "buffer" used in the Ping payload really matters. Can it be anything, or do routers respond differently based on the contents of the ...
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2answers
603 views

tracert IP address strange behavior

I'm not the network admin, so bear with me please. Is there a way to find out which DNS server is responding to a TRACERT? When we type TRACERT 123.45.67.89 the wrong domain name comes back: ...
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1answer
322 views

Could someone with twtelecom inform them that they have a faulty router? [closed]

I did a trace route to see where the packets stop when requesting match.com and I noticed that they always stop at the same router using tracert: Tracing route to us.match.com.akadns.net ...
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1answer
68 views

problem with tracert

How does tracert work if the route to the destination gets disconnected or the link is damaged? what will happen?
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4answers
4k views

why tracert does not show the same gateway address as in ipconfig

I am confused by the following: C:\>ipconfig .... Connection-specific DNS Suffix . : some address here IP Address. . . . . . . . . . . . : 10.77.121.54 Subnet Mask . . . . ...
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2answers
643 views

Live server unreachable - what does this tracert tell me?

I have the website *.co.uk but havn't been able to access it recently. I know its live, I can access it using vtunnel proxy server. I'm having the problem just on my virgin (uk) internet connection ...
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3answers
414 views

Junior admin - how to discover/map the network to increase understanding?

I am a junior admin and have been tasked with gaining an understanding of the network. I know and use some of the servers on the network, so am able to tracert/ping them to see the names/addresses of ...
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3answers
659 views

Analyzing traceroute

I'm not a big network expert, but I'm having trouble accessing vmware.com and I'd like to try to further understand the issue. This is the traceroute I'm getting: http://pastebin.com/MDaw5MRG On the ...
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1answer
236 views

ISP filtering traffic through proxy? Can't connect to private proxy using an IP address accept list

I'm trying to figure out why this computer can't connect to these private proxies I have. These proxies work with an IP address accept list. So, I've looked up the IP address on the ...
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2answers
3k views

Differences of the TTL value in Tracert and Ping

When I ping localhost on my Windows XP system, the TTL value returned is 128 and it shows me that the default TTL value in the ping for my system is 128. Then when I ping google.com the returned TTL ...
2
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1answer
4k views

Can ping but cannot traceroute from Linux. Can do both from Windows. What gives?

So here's the issue. I have two different computers behind the same network. Both have the same gateway, IP address prefixes, etc. Computer 1: Windows XP IP 192.168.0.15 This computer can ping and ...
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5answers
30k views

Ping “replies” from same computer with 'Destination host unreachable' (no route to other computer)

I've got two computers in a LAN behind a wireless router. One has XP with ip 192.168.1.2 This one has W7 with ip 192.168.1.7 If I try to ping the other one from this computer, I get this: ...
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0answers
757 views

The difference between ping and pathping command? [duplicate]

Possible Duplicate: The difference between ping and pathping command? Hi guys, today i wanna ask you a question about internet network command. pathping = tracert+ping, so what is the ...
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4answers
594 views

ICMP - TTL - Trace Route

I asked this question at Stack Overflow and then thought this may be the better place to ask. Given the following situation: PC --- |aa RTR1 bb| --- |aa RTR2 bb| --- |aa RTR3 bb| etc Each of the ...
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1answer
805 views

RRAS NAT not working on a certain computer

This is driving me crazy. I have a virtualized W2K8 server running RRAS. Every other computer or server on the network can access the internet through the NAT except one. On one server, it just ...
2
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3answers
282 views

Computers in our office network occasionally can't visit certain websites until we run a tracert. Why?

Our office network is split into 2 internet service providers so that we have failsafe connections to the internet. These 2 gateways occasionally go down on certain computers, and this causes those ...
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2answers
260 views

Question about trace route

I live in a small town in rural Nebraska. When I do a tracert from my home to the small college where I work it hops to Dallas, then Denver, and then Chicago before coming back here. That seems very ...
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1answer
75 views

Server routing issue

Whenever I do tracert from my Windows XP PC I always get "request timed out" for this particular destination server. But others are working fine. Only our server which is located in Dubai that is not ...
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1answer
266 views

Tracert's last hop is showing the URL of a shared host - Why?

I'm running multiple websites on a shared hosting service (sharing the one IP) that is also hosting many other websites out of my control. Doing a Bing 'ip:' search shows all these sites. There's ...
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4answers
6k views

What is the difference between ping and tracert?

I basically know the difference in my head but I'm having trouble formulating it on paper. If someone could tell me a little more detailed explanation about the two I'd really appreciate it. So ...
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5answers
2k views

Traceroute includes un-routable IP (?)

I ran the following traceroute once, while trying to disagnose a network problem. c:\>tracert linode.com -d Tracing route to linode.com [67.18.186.61] over a maximum of 30 hops: 1 <1 ms ...
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2answers
1k views

When using traceroute -A, where does the ASN come from?

I haven't cracked open the source code yet, but I was curious which whois service the traceroute program uses to look up ASNs for a given IP.
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3answers
18k views

What do the three columns in traceroute output mean?

What do the three columns in traceroute output mean? The man page isn't helpful: http://www.ss64.com/bash/traceroute.html This is better, but a little more verbose than I'm looking for. As an ...