Routing Loops

For amusement value, this is what happens when you have a rogue network engineer who decides to appropriate and advertise an IP network already in use in your enterprise.  IP addresses changed to protect confidentiality.  AddressA is located in China, Routers A-C are located at WHQ in California, and Routers D-H are located in Europe.

>tracert AddressA
Tracing route to AddressA over a maximum of 30 hops
1 1 ms <1 ms <1 ms routerA
2 <1 ms 1 ms <1 ms routerB
3 3 ms 3 ms 3 ms routerC
4 * * * Request timed out.
5 167 ms 162 ms 164 ms routerD
6 165 ms 171 ms 163 ms routerE
7 165 ms 165 ms 164 ms routerF
8 187 ms 189 ms 190 ms routerG
9 190 ms 190 ms 190 ms routerH
10 * * * Request timed out.
11 199 ms 199 ms 202 ms routerD
12 199 ms 211 ms 197 ms routerE
13 200 ms 199 ms 204 ms routerF
14 222 ms 225 ms 225 ms routerG
15 223 ms 224 ms 224 ms routerH
16 * * * Request timed out.
17 233 ms 234 ms 235 ms routerD
18 241 ms 237 ms 233 ms routerE
19 237 ms 234 ms 235 ms routerF
20 258 ms 259 ms 258 ms routerG
21 263 ms 264 ms 260 ms routerH
22 * * * Request timed out.
23 291 ms 321 ms 306 ms routerD
24 319 ms 327 ms 272 ms routerE
25 278 ms 275 ms 269 ms routerF
26 292 ms 295 ms 294 ms routerG
27 294 ms 295 ms 293 ms routerH
28 * * * Request timed out.
29 310 ms 304 ms 309 ms routerD
30 318 ms 304 ms 307 ms routerE
Trace complete.
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