Not able to use MTR Command from Virtual Box, is this a routing issue?

JockVSJock · 05-13-2013, 07:57 PM

Greetings.

Have discovered the MTR command from this website.

http://www.commandlinefu.com/command...te-combination

This is a combination of ping and traceroute.

I've fired up Ubuntu 12.04 LTS and tried the following command

Code:

cmmiller1973@ubuntu64vm:~$ mtr --report google.com
HOST: ubuntu64vm                  Loss%   Snt   Last   Avg  Best  Wrst StDev
  1.|-- 10.0.2.2                   0.0%    10    0.8   0.8   0.7   0.9   0.1
  2.|-- ???                       100.0    10    0.0   0.0   0.0   0.0   0.0
cmmiller1973@ubuntu64vm:~$ ^C

For some reason, it doesn't seem to be getting past the address of 10.0.2.2.

I check the network settings and realize that this is a default route.

I confirm this with the following command

Code:

cmmiller1973@ubuntu64vm:~$ route -v
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         10.0.2.2        0.0.0.0         UG    0      0        0 eth0
10.0.2.0        *               255.255.255.0   U     1      0        0 eth0
link-local      *               255.255.0.0     U     1000   0        0 eth0

I'm not sure what move to make next here to get the MTR Command to work. Do I need to add another route?

Keep in mind I'm running this from Virtual Box and I'm not up to speed yet on the virtualization part of the house.

thanks

Kustom42 · 05-13-2013, 08:49 PM

What kind of network did you setup your virutal network as? You probably want a bridged or NAT connection but not sure what your needs are.

Start here: http://www.virtualbox.org/manual/ch0...etworkingmodes

JockVSJock · 05-13-2013, 09:20 PM

I have NAT enabled and I'm physically connected, using CAT 5 to a cable modem, from the host machine.

So, I don't know if this is a networking question or a Virtual Box question.

EDIT: Wanted to add, that I can surf the Internet ok from the virtual machine and get updates via apt-get.

nyshtyak · 05-14-2013, 07:30 AM

Virtualbox (unlike e.g. KVM) uses own networking stack realization so some features work not very well. See this page from their documentation: http://www.virtualbox.org/manual/ch0...at-limitations

MTR uses icmp or udp broadcasts.

JockVSJock · 05-14-2013, 08:03 AM

Quote:

Originally Posted by nyshtyak

Virtualbox (unlike e.g. KVM) uses own networking stack realization so some features work not very well. See this page from their documentation: http://www.virtualbox.org/manual/ch0...at-limitations

MTR uses icmp or udp broadcasts.

So this isn't a routing issues, just that Virtual Box networking needed to be changed from NAT to Bridged. Once doing that it fixed the issue.

Code:

cmmiller1973@ubuntu64vm:~$ traceroute 4.2.2.2
traceroute to 4.2.2.2 (4.2.2.2), 30 hops max, 60 byte packets
 1  10.113.176.1 (10.113.176.1)  7.334 ms  7.121 ms  7.681 ms
 2  192.168.250.1 (192.168.250.1)  11.641 ms  12.285 ms  12.128 ms
 3  wsip-70-167-61-77.ks.ks.cox.net (70.167.61.77)  11.970 ms  11.831 ms  11.689 ms
 4  70.183.69.81 (70.183.69.81)  28.886 ms  30.897 ms  31.537 ms
 5  70.183.66.246 (70.183.66.246)  19.293 ms  19.999 ms 70.183.71.62 (70.183.71.62)  15.639 ms
 6  70.183.71.66 (70.183.71.66)  19.686 ms 70.183.71.60 (70.183.71.60)  39.879 ms 70.183.71.66 (70.183.71.66)  43.535 ms
 7  68.1.2.121 (68.1.2.121)  31.143 ms  30.964 ms  29.979 ms
 8  xe-10-1-0.edge4.Dallas3.Level3.net (4.59.32.85)  30.648 ms xe-11-1-2.edge4.Dallas3.Level3.net (4.59.32.97)  25.369 ms xe-7-1-0.edge4.Dallas3.Level3.net (4.59.32.93)  26.072 ms
 9  ae-3-80.edge3.Dallas1.Level3.net (4.69.145.136)  25.930 ms ae-1-60.edge3.Dallas1.Level3.net (4.69.145.8)  25.751 ms ae-3-80.edge3.Dallas1.Level3.net (4.69.145.136)  25.602 ms
10  b.resolvers.Level3.net (4.2.2.2)  29.758 ms  29.616 ms  29.400 ms
cmmiller1973@ubuntu64vm:~$

Code:

cmmiller1973@ubuntu64vm:~$ mtr --report google.com
HOST: ubuntu64vm                  Loss%   Snt   Last   Avg  Best  Wrst StDev
  1.|-- 10.113.176.1               0.0%    10   10.1  10.3   7.3  19.3   3.5
  2.|-- 192.168.250.1              0.0%    10    8.7  10.7   7.5  21.1   4.3
  3.|-- wsip-70-167-61-77.ks.ks.c  0.0%    10    7.1  10.0   7.1  13.0   1.9
  4.|-- 70.183.69.81               0.0%    10   32.8  17.2  12.4  32.8   6.8
  5.|-- 70.183.71.62               0.0%    10   12.5  17.2  12.5  37.6   7.6
  6.|-- 70.183.71.60               0.0%    10   17.1  15.4  11.6  20.5   3.2
  7.|-- 68.1.2.121                 0.0%    10   31.5  37.1  27.7  79.6  16.1
  8.|-- 72.14.212.237              0.0%    10   29.5  29.2  27.4  35.0   2.3
  9.|-- 72.14.233.85               0.0%    10   28.5  30.1  27.0  40.4   3.9
 10.|-- 209.85.240.79              0.0%    10   30.7  30.0  27.8  35.8   2.6
 11.|-- dfw06s27-in-f8.1e100.net   0.0%    10   26.4  29.3  24.7  41.5   5.1

Not sure if we want to move this to VM part of the forums.

thanks