[c-nsp] Something like MTR, but forced path

Tuc at T-B-O-H.NET ml at t-b-o-h.net
Tue Dec 18 13:25:46 EST 2007


Hi,

	This isn't really a Cisco question, but thought people
here might have a better clue. Basically, I need a program like
MTR (Example on the bottom) for Unix, but instead of it showing
what the routed hops are, I want to force what items it believes
are along the way.

        Problem we have is a small wireless network is basically flat, not
networked. There are 10 pieces of equipment between 2 machines. However,
they are both on the same subnet, so it just looks like it only needs to 
hop once. Instead, it goes from the router, to a client antenna (IP'd),
to an Access Point (IP'd), to a switch (IP'd), to a backhaul (IP'd), to
another backhaul(IP'd)... You get the jist. I basically want to force the
system to believe my path, not what routed networking tells it.

		Thanks, Tuc

EXAMPLE of MTR

                             My traceroute  [v0.72]
himinbjorg.tucs-beachin-obx-house.com (0.0.0.0)        Tue Dec 18 13:23:29 2007
Keys:  Help   Display mode   Restart statistics   Order of fields   quit
                                       Packets               Pings
 Host                                Loss%   Snt   Last   Avg  Best  Wrst StDev
 1. gw.tucs-beachin-obx-house.com     0.0%     6    5.6   6.0   5.5   7.5   0.7
 2. 208-45-247-233.dia.static.qwest.  0.0%     5   12.4  14.6  12.4  19.2   2.7
 3. atl-edge-15.inet.qwest.net        0.0%     5   30.4  31.2  28.7  36.4   3.1
 4. atl-core-01.inet.qwest.net        0.0%     5   30.7  30.2  29.6  30.7   0.5
 5. cer-core-01.inet.qwest.net        0.0%     5   51.3  45.8  43.8  51.3   3.2
 6. chp-brdr-02.inet.qwest.net        0.0%     5   44.4  50.4  44.4  68.8  10.4
 7. ge-1-6.r01.chcgil09.us.bb.gin.nt  0.0%     5   44.7  47.3  44.6  51.8   3.1
 8. xe-2-1-0.r20.chcgil09.us.bb.gin.  0.0%     5   49.1  47.9  46.7  49.1   0.9
 9. p64-0-0-0.r21.nycmny01.us.bb.gin  0.0%     5   63.0  66.1  63.0  69.0   2.2
10. po-4.r03.nycmny01.us.bb.gin.ntt.  0.0%     5   89.8  98.8  68.4 178.4  45.7
11. ge-1-0-0.a04.nycmny01.us.ra.gin.  0.0%     5   64.2  63.8  62.3  65.1   1.3


example of what I'd like to see :

                             My traceroute  [v0.72]
himinbjorg.tucs-beachin-obx-house.com (0.0.0.0)        Tue Dec 18 13:23:29 2007
Keys:  Help   Display mode   Restart statistics   Order of fields   quit
                                       Packets               Pings
 Host                                Loss%   Snt   Last   Avg  Best  Wrst StDev
 1. 192.168.3.254                     0.0%     6    5.6   6.0   5.5   7.5   0.7
 2. 192.168.75.48                     0.0%     5   12.4  14.6  12.4  19.2   2.7
 3. 192.168.75.6                      0.0%     5   30.4  31.2  28.7  36.4   3.1
 4. 192.168.75.4                      0.0%     5   30.7  30.2  29.6  30.7   0.5
 5. 192.168.75.3                      0.0%     5   51.3  45.8  43.8  51.3   3.2
		(etc)


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