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Traceroute asterisks

nkillgore
Level 1
Level 1

edit: figured it out. replied below.          

Below is the output of both a traceroute and a ping from one device to another on my network any idea why there are alternating asterisks?

Switch#tracer

Protocol [ip]:

Target IP address: 10.77.42.246

Source address: 10.77.42.249

Numeric display [n]:

Timeout in seconds [3]:

Probe count [3]: 20

Minimum Time to Live [1]:

Maximum Time to Live [30]:

Port Number [33434]:

Loose, Strict, Record, Timestamp, Verbose[none]:

Type escape sequence to abort.

Tracing the route to 10.77.42.246

  1 10.77.42.246 26 msec *  17 msec *  16 msec *  16 msec *  17 msec *  17 msec *  17 msec *  17 msec *  17 msec *  17 msec *

Switch#ping

Protocol [ip]:

Target IP address: 10.77.42.246

Repeat count [5]: 30

Datagram size [100]:

Timeout in seconds [2]:

Extended commands [n]: y

Source address or interface: 10.77.42.249

Type of service [0]:

Set DF bit in IP header? [no]:

Validate reply data? [no]:

Data pattern [0xABCD]:

Loose, Strict, Record, Timestamp, Verbose[none]:

Sweep range of sizes [n]:

Type escape sequence to abort.

Sending 30, 100-byte ICMP Echos to 10.77.42.246, timeout is 2 seconds:

Packet sent with a source address of 10.77.42.249

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Success rate is 100 percent (30/30), round-trip min/avg/max = 16/22/34 ms

1 Reply 1

nkillgore
Level 1
Level 1

Ok so I figured it out...

The devices are rate-limiting the icmp requests. See link below.

http://packetlife.net/blog/2008/dec/29/traceroute-timeouts/