Questions tagged [traceroute]
traceroute is a common networking utility to determine the path a packet takes to a target IP device.
277
questions
0
votes
2
answers
19
views
traceroute does not show the network my public ip is in
I retrieve my public ip and whois it:
whois $(wget -qO- ipinfo.io | grep -w ip | sed 's/"//g;s/://g;s/,//g;s/ip//g;s/^.*[ \t]//g')
my public ip:
79.116.123.39
whois result:
[...]
79.116.123.0 - ...
- 5
1
vote
2
answers
110
views
Identify latency problems to gaming server
I am playing an online game where the server is physically located in the same city (~10km=6miles). I have cabled internet with WiFi and have a ping around 170-200ms with severe spikes. From my phone ...
0
votes
1
answer
159
views
create windows firewall rule for traceroute
I want to create a windows firewall rule that allow outbound tracert.exe connections.
But when i:
go in the 'windows firewall with advanced security' panel
block all outboud connections
create a ...
- 101
0
votes
0
answers
38
views
traceroute does not show local proxy hop
I'm using Ubuntu and the proxy settings is set to forward traffic to a local proxy on another PC in my home LAN.
Here is the setup:
Ubuntu settings:
When tracing the packets from my PC, why ...
- 139
1
vote
2
answers
56
views
Trying to colour code the output of tracert within powershell - not working as expected
I'm trying to colour the lines green, yellow and red within powershell depending on the latency in milliseconds. Our remote workflow dictates that anything over 40ms is bad, so I want this to be ...
- 1,075
12
votes
2
answers
2k
views
Is it possible to force TCP to find another path to the host?
I have two operating systems on my computer, in one TCP normally finds the path to the host, and in the other traceroute breaks off halfway. Is it possible that the route is somehow cached? If so, is ...
- 123
0
votes
0
answers
205
views
How to exclude local proxy from OpenVPN
I have one VPS, I run an OpenVPN and Proxy server on it. I can't use OpenVPN on my ISP to connect to it, the handshake always fails because the traffic is easily detected and dropped. So I use the ...
- 1,445
0
votes
1
answer
1k
views
Traceroute only showing final hop
Facing a weird problem in a production environment where the traceroute is only showing the final hop and output looks like below,
***
***
***
***
***
***
dns.google [8.8.8.8] 10/10/11ms
It is the ...
- 3
0
votes
1
answer
58
views
How to see unresponsive servers in a traceroute?
When you do a traceroute and a router does not respond within a timeout then traceroute prints an asterisk, like
traceroute my.domain.com
...
13 te9-2.dsr01.dllstx3.networklayer.com (70.87.253.14) ...
- 580
0
votes
1
answer
278
views
How to traceroute a site behind a VPN on a Mac?
I am trying to use traceroute on MacOS 12.4 but I do not get any useful output it seems. I am trying to get the traceroute to a resource behind a VPN.
The output is
$ traceroute -d -I my.domain.com
...
- 580
0
votes
1
answer
500
views
Running a reverse MTR report on Windows
I am using WinMTR to check my connectivity to this specific host but is there a way to get the report of a reverse mtr? I need to get the report from that host to my public IP address but WinMTR only ...
- 103
1
vote
1
answer
239
views
Why do traceroutes start with the same path?
I'm curious as to why all traceroutes start with the same path. For example, if I want to do a traceroute from my current location to www.google.com and another one to www.bbc.co.uk, the first few ...
1
vote
1
answer
134
views
Traceroute output : what is the correct path?
I am trying to understand and draw network path from traceroute output. An example output looks like below:
Suppose I want to draw the path between 3rd and 4th hop. Is it right to assume that there ...
- 227
1
vote
1
answer
1k
views
Are there any alternatives to tracert command in cmd/PowerShell that doesn't suffer the request timed out issue?
The cmd tracert <URL> command, quite often, suffers the request timed out issue if the ICMP packets/port are blocked by the routers/ISP's firewall. Now I was wondering if there is any cmd/...
- 546
0
votes
1
answer
202
views
Missing hop in traceroute
I have a Ubuntu Server connected to two networks: 10.0.8.18/24 and 10.0.18.2/24.
When doing traceroute from 10.0.8.x to an IP in 10.0.18.0/24 I get:
traceroute to 10.0.18.1 (10.0.18.1), 30 hops max, ...
- 335
0
votes
1
answer
50
views
Concerned about security due to strange tech happenings at home
I've done a little research into this but have not discovered a definitive answer that satisfies my mind with, what I would consider to be a sound reason. Can anyone shed some light on what has ...
- 1
1
vote
2
answers
106
views
carrier networking strange things
My configuration is as follows:
my linux laptop ---eth---> openbsd_fw ---usb---> 4g_modem ----> internet
If I run MTR to 8.8.8.8 it gives me the following:
Host ...
- 111
0
votes
1
answer
357
views
Tracert access is denied in windows 7, side-by-side configuration incorrect
I use windows 7. This is my personal computer. When I tried to use tracert today in command prompt with administrative privileges, it says access denied. I have used to command in the past without any ...
1
vote
2
answers
486
views
How do I get traceroute to work like tcptraceroute?
On Mac OS 11 the man page for traceroute says you can set it to TCP mode with -P TCP. When I attempt to do this I get no responses:
[me@laptop ~]$ sudo traceroute -f 6 -m 10 -e -P TCP -p 443 www....
- 11
0
votes
1
answer
176
views
5G modem shows no traceroutes
I have a very bad internet connection, so I had a 4G/LTE modem to access the internet. Behind it is an asus router to which all my devices are connected. But this was a bit slow recently, so I ...
- 1
2
votes
1
answer
1k
views
Tracert not showing IP addresses instead showing something I don't recognize
I am working on a network issue but having issues with tracert. Why is it showing those bracketed numbers instead of what would look like a traditional IP address? I ran this same tracert on a ...
- 21
0
votes
0
answers
166
views
How to view resolved ip adresses in tracert command in cmd?
How can I see resolved IP addresses in the 'tracert' command in command prompt. Some guy on the internet is getting resolved names for the same command as mine(tracert 8.8.8.8).
His
and mine.
- 118
0
votes
0
answers
505
views
ping Request Timeout causes?
My home internet has recently gone on the fritz.
Running ping google.com seems to return interesting results:
equest timeout for icmp_seq 2028
Request timeout for icmp_seq 2029
Request timeout for ...
- 802
1
vote
1
answer
86
views
Do Linux (4.15.0-130) and Windows (10) treat ICMP differently?
While attempting to troubleshoot a Windows 10 machine with erratic network problems, I did a traceroute to a host and got somewhat different results from what I see on my Ubuntu 18.04 system with ...
0
votes
1
answer
939
views
Traceroute/tracert fails to receive hops return information
I noticed that with some routers/gateways
when I issue a traceroute or a tracert in a 'inner' computer
the hops always fail with:
request timed out
can anybody clarify this?
what information goes ...
- 918
1
vote
1
answer
2k
views
Windows ping to Any IP including 127.0.0.1 hangs, but internet works
I have weird behavior on my Windows 10 operating system. Any ping/tracert command hangs and nothing happens. I have never seen something like this before, and all i have found in the google aren't my ...
- 113
1
vote
0
answers
289
views
Default gateway not responding to pings with a TTL of 1
I am attempting to create a traceroute program, but this isn't directly related to programming.
I noticed that my router will not respond with a Time Exceeded to pings that have a TTL of 1, which is ...
- 291
0
votes
2
answers
600
views
Why can’t I see the second hop in tracert?
giga.cube is my local router. My PC is connected to it via WiFi. After that I see a hop whose IP adress can't be seen nor pinged. Is this nominal?
Be aware that the GigaCube is connected to internet ...
1
vote
2
answers
2k
views
`traceroute` does not work properly in the NAT mode with port forwarding in VirtualBox
I have the following setup:
Adapter: NAT
Port forwarding: TCP | host port 2277 | guest port 22
when I traceroute google.com, I get the following result:
traceroute google.com
traceroute to google.com (...
- 671
1
vote
1
answer
166
views
How does my Wi-Fi router seemingly cause lag in another hop?
$ traceroute -I 203.195.123.148
traceroute to 203.195.123.148 (203.195.123.148), 64 hops max, 72 byte packets
1 192.168.0.1 (192.168.0.1) 2.249 ms 1.187 ms 1.257 ms
...
8 180.87.67.46 (180....
- 113
3
votes
1
answer
2k
views
Why is tracert not showing my public ip address?
Tracert does not show the IP of my WAN interface, not the gateway also. My public IP starts with 37 and it does not appear in tracert.
tracert www.google.com
1 3 ms 3 ms 2 ms vodafone....
- 31
0
votes
3
answers
62
views
How to find IP of Wireless AP (NOT the router, just the AP!)
My Wireless AP is a Tp Link TL-WR740N. It's continuing to broadcast its SSID and I can connect to it and use the WiFi and indeed connect to the internet (via the router) using it. However I need to ...
- 13
1
vote
1
answer
310
views
How to interpret specific MTR packet loss data (are these IPs internal or external?)
I've been experiencing some pretty bad, but intermittent, packet loss and I'm not sure if I need a new cable modem or router, or whether it's the ISP.
I ran MTR (well, winmtr) as soon as it started ...
- 13
1
vote
2
answers
351
views
Connection suffers from "packet loss" and trace route
My internet connection has been suffering from packet loss for weeks and I'm trying to find where it is happening. It can go up to 35% packet loss, which is terrible and it's really bad when playing ...
- 11
1
vote
1
answer
3k
views
How do I traceroute an ipv6 address with mtr?
I'm trying to troubleshoot a connectivity issue to an IPv6 addressed host using mtr, however, despite using the -6 switch, it fails with the error:
mtr -6 2001:db8:1d4f:10::1
mtr-packet: Failure to ...
- 353
0
votes
4
answers
193
views
How to understand the output of traceroute?
I see some entries have multiple rows. Does anybody know why? Thanks.
$ traceroute 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 64 hops max, 52 byte packets
...
8 108.170.252.129 (108.170.252.129) 36....
- 255
1
vote
1
answer
894
views
Why is this international internet traffic routed so inefficiently? [closed]
Being located in the Philippines/Asia, I did a traceroute to a datacenter in the Netherlands/Europe:
traceroute to www.transip.nl (37.97.254.1), 30 hops max, 60 byte packets
1 _gateway (192.168.0.1)...
- 161
2
votes
1
answer
688
views
I can't access most sites using IPv6. Is it an issue with "Level 3" network?
Note: I'm not a network expert, and I don't have deep knowledge about IPv6.
Recently, IPv6 connectivity seems not to be working here. (Tested through Firefox)
The funny thing are, when doing a ...
- 21
0
votes
0
answers
144
views
Route given by traceroute and ping does not match routing table
I have a network of over 100 hosts running CentOs 7 With Quagga installed on all of them.
Between certain hosts, the route given by traceroute (and incrementing ttl flag with ping) does not match the ...
0
votes
0
answers
39
views
Why does traceroute time out when I try it on certain hosts?
I have a large LAN set up with over 100 hosts.
Most of the time traceroute works fine, but in certain cases between two particular hosts, it times out.
I have tried the default traceroute as well ...
1
vote
1
answer
388
views
Is there a way to configure traceroute such that the -T or -I flags do not require root privs to perform?
I am using Centos 7. Basically I just want any user to be able to do a ICMP or TCP traceroute. Is there a way to configure traceroute such that the -T or -I flags do not require root privilegess to ...
0
votes
1
answer
2k
views
Getting firewalld to allow traceroute for centos 7
We have a server running CentOS 7.
There is a weird situation where I can ping to the server from my firewall but was not able to perform a traceroute.
The server is a directly connecting to the ...
0
votes
0
answers
33
views
Traceroute: destination IP-address returned for all but first hop. (Debian 9.11)
At some point in the past year, Traceroute behavior changed. Was working correctly prior.
(Debian v9.11 Traceroute 1:2.1.0-2)
Now, first traceroute result, my gateway, is correct, but all the ...
- 116
1
vote
1
answer
153
views
How can ping/ tracepath derive the path MTU info? [closed]
How exactly do ping and tracepath manage to obtain info on MTU?
- 117
1
vote
1
answer
175
views
Tracert throws up an error with -R option
When I use tracert without any options, it runs fine. As in:
tracert google.com
But when I run it with -R:
tracert -R google.com
It throws up the error "Unable to resolve target system name ...
- 1,342
0
votes
1
answer
422
views
Interpret the output of these traceroute commands
I've been getting unusually high ping (~180ms) to the League of Legends OCE server (Australia) when playing from NZ, and so I've done a traceroute for the IP of the server.
Is anyone able to give ...
-1
votes
1
answer
2k
views
Tracert tracing to different ip than the one returning from who is [closed]
I am trying to figure out why I cannot access a specific website from my office network. If I visit this site from another ip then there is no problem. I can visit also other websites hosted in the ...
- 99
1
vote
0
answers
496
views
Double Nat Detection
I am trying to figure out if I have double NAT so I ran some traceroute.
First I set my router in NAT mode and ran traceroute 8.8.8.8
Here the result
traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 ...
0
votes
1
answer
742
views
How to use Traceroute --mtu on Mac
I am trying to do the following
Traceroute --mtu google.com
however I get a usage: traceroute [-M first_ttl] etc giving me all the command lines. How can I use --mtu with traceroute on mac?
I am ...
- 3
0
votes
0
answers
97
views
mtr output: last entry is repeated on all hops
Whenever I run mtr, it briefly shows a single hop per line, then upon reaching the last hop it shows up as a duplicate entry on all other hops:
My traceroute [v0.92]
[local ...
- 6,854