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Two hops with the same IP address.

Ruben Leal
Level 1
Level 1

Hello Everyone,

I have a problem with a client complaining about assymmetric routing, I already performed a traceroute from source to destination and backward and for me all seems to be fine, but now the client is complaining about the hops 2 and 3  with IP: 172.31.234.166, he says there's a routing loop and that's why he has its conection with slowness.

Could please  share an idea about why a router could answer twice to a traceroute. Thanks in advance.

Router1#tracer vrf vpn-1111 10.135.47.30

Type escape sequence to abort.

Tracing the route to 10.135.47.30

  1 62.237.110.46 0 msec 0 msec 0 msec                

  2 172.31.234.166 0 msec 0 msec 9 msec

  3 172.31.234.166 0 msec 0 msec 0 msec

  4 94.142.119.106 42 msec 33 msec 34 msec

  5 172.31.232.177 33 msec 25 msec 34 msec

  6  *  *  *

  7

  From Destination to Source

------------------------------------------------

  Router2#tracer vrf vpn-1111 10.121.76.51

Type escape sequence to abort.

Tracing the route to 10.121.76.51

  1 172.31.232.177 [AS 65534] 1 msec 1 msec 1 msec

  2 94.142.125.21 [AS 65534] [MPLS: Labels 300880/24 Exp 2] 42 msec 30 msec 30 msec

  3 172.31.234.166 [AS 65534] 31 msec 30 msec 31 msec

  4 62.237.110.47 [AS 65534] 31 msec 31 msec 31 msec

  5  *  *  *

6  *  *  *

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