Des (deskitty) wrote,
Des
deskitty

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Circular Routing

Yes, kiddies, when you point two routers at each other, the packets do indeed bounce back and forth!

deneb ~ # traceroute -n 129.65.17.240     <----- Cal Poly CSC dept DNS server
traceroute to 129.65.17.240 (129.65.17.240), 30 hops max, 40 byte packets
 1  63.194.127.153  9.822 ms  8.980 ms  8.145 ms
 2  216.102.182.130  9.519 ms  8.475 ms  8.542 ms
 3  216.102.182.10  8.738 ms  9.525 ms  8.832 ms
 4  151.164.189.37  8.464 ms  9.254 ms  9.339 ms
 5  151.164.189.42  8.765 ms  8.582 ms  9.334 ms
 6  151.164.189.37  8.889 ms  9.259 ms  9.308 ms
 7  151.164.189.42  8.314 ms  8.560 ms  8.332 ms
 8  151.164.189.37  9.310 ms  8.806 ms  9.699 ms
 9  151.164.189.42  7.954 ms  9.057 ms  9.322 ms
10  151.164.189.37  8.547 ms  9.579 ms  8.316 ms
11  151.164.189.42  8.320 ms  9.798 ms  8.090 ms
12  151.164.189.37  8.561 ms  9.570 ms  8.326 ms
13  151.164.189.42  8.309 ms  8.574 ms  9.571 ms
14  151.164.189.37  8.304 ms  9.566 ms  8.294 ms
15  151.164.189.42  8.088 ms  8.802 ms  9.320 ms
16  151.164.189.37  8.571 ms  9.804 ms  8.333 ms
17  151.164.189.42  10.050 ms  9.795 ms  10.049 ms
18  151.164.189.37  9.555 ms  8.556 ms  9.580 ms
19  151.164.189.42  8.296 ms  10.285 ms  10.048 ms
20  151.164.189.37  9.792 ms  13.242 ms  9.805 ms
21  151.164.189.42  9.560 ms  9.799 ms  10.293 ms
22  151.164.189.37  9.577 ms  9.792 ms  10.302 ms
23  151.164.189.42  10.522 ms  9.546 ms  9.826 ms
24  151.164.189.37  9.541 ms  10.044 ms  11.541 ms
25  151.164.189.42  10.045 ms  9.776 ms  9.576 ms
26  151.164.189.37  9.800 ms  10.050 ms  10.049 ms
27  151.164.189.42  13.229 ms  9.544 ms  10.059 ms
28  151.164.189.37  9.788 ms  10.293 ms  9.571 ms
29  151.164.189.42  10.047 ms  9.789 ms  9.812 ms
30  151.164.189.37  10.297 ms  9.552 ms  10.064 ms


...

You get the idea.


-- Des

 01:53:57 up 93 days, 10:51,  4 users,  load average: 1.47, 0.44, 0.20
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