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ICMP timestamps again

legacy1
Alessandro Volta

Guess my post about when to archive still ping one and getting three replies by gateway check SEQ=

Some trickery going on here... so I get drift will happen but thats not what this is about (left alone their being three replies) so the idea of ICMP timestamps is you get a rough TX/RX in ms so like the first one would be 3ms tx by 3ms rx give or take a ms

But look at 03-08 15:28:04.810 it showing tx=4ms rx=3ms but the RTT is over 19ms does not add up!

Spoiler

2023-03-08 15:27:54.791: From 94.173.26.1: bytes=40 seq=0001 TTL=64 ID=b14b time=6.785ms tx=3ms rx=3ms

2023-03-08 15:27:54.791: From 94.173.26.1: bytes=40 SEQ=0001 TTL=64 ID=e0a1 time=6.803ms tx=3ms rx=3ms

2023-03-08 15:27:54.793: From 94.173.26.1: bytes=40 SEQ=0001 TTL=255 ID=8a1f time=9.404ms tx=3ms rx=3ms

2023-03-08 15:27:55.797: From 94.173.26.1: bytes=40 seq=0002 TTL=64 ID=b42c time=6.921ms tx=4ms rx=3ms

2023-03-08 15:27:55.797: From 94.173.26.1: bytes=40 SEQ=0002 TTL=64 ID=e2b9 time=6.935ms tx=4ms rx=3ms

2023-03-08 15:27:55.797: From 94.173.26.1: bytes=40 SEQ=0002 TTL=255 ID=8a20 time=7.092ms tx=4ms rx=3ms

2023-03-08 15:27:56.810: From 94.173.26.1: bytes=40 seq=0003 TTL=64 ID=b76c time=11.503ms tx=8ms rx=3ms

2023-03-08 15:27:56.810: From 94.173.26.1: bytes=40 SEQ=0003 TTL=64 ID=e2c3 time=11.519ms tx=8ms rx=3ms

2023-03-08 15:27:56.810: From 94.173.26.1: bytes=40 SEQ=0003 TTL=255 ID=8a21 time=11.633ms tx=8ms rx=3ms

2023-03-08 15:27:57.797: From 94.173.26.1: bytes=40 seq=0004 TTL=64 ID=b96d time=6.415ms tx=3ms rx=3ms

2023-03-08 15:27:57.797: From 94.173.26.1: bytes=40 SEQ=0004 TTL=64 ID=e5a0 time=6.433ms tx=3ms rx=3ms

2023-03-08 15:27:57.798: From 94.173.26.1: bytes=40 SEQ=0004 TTL=255 ID=8a22 time=7.001ms tx=3ms rx=4ms

2023-03-08 15:27:58.791: From 94.173.26.1: bytes=40 seq=0005 TTL=64 ID=bb08 time=6.381ms tx=3ms rx=3ms

2023-03-08 15:27:58.791: From 94.173.26.1: bytes=40 SEQ=0005 TTL=64 ID=e61e time=6.398ms tx=3ms rx=3ms

2023-03-08 15:27:58.791: From 94.173.26.1: bytes=40 SEQ=0005 TTL=255 ID=8a23 time=6.636ms tx=3ms rx=3ms

2023-03-08 15:27:59.800: From 94.173.26.1: bytes=40 seq=0006 TTL=64 ID=bec7 time=7.156ms tx=4ms rx=3ms

2023-03-08 15:27:59.800: From 94.173.26.1: bytes=40 SEQ=0006 TTL=64 ID=e81f time=7.170ms tx=4ms rx=3ms

2023-03-08 15:27:59.800: From 94.173.26.1: bytes=40 SEQ=0006 TTL=255 ID=8a24 time=7.174ms tx=4ms rx=3ms

2023-03-08 15:28:00.805: From 94.173.26.1: bytes=40 seq=0007 TTL=64 ID=c16c time=6.564ms tx=3ms rx=3ms

2023-03-08 15:28:00.805: From 94.173.26.1: bytes=40 SEQ=0007 TTL=64 ID=e841 time=6.581ms tx=3ms rx=3ms

2023-03-08 15:28:00.810: From 94.173.26.1: bytes=40 SEQ=0007 TTL=255 ID=8a25 time=11.494ms tx=3ms rx=3ms

2023-03-08 15:28:01.796: From 94.173.26.1: bytes=40 seq=0008 TTL=64 ID=c470 time=5.983ms tx=3ms rx=3ms

2023-03-08 15:28:01.796: From 94.173.26.1: bytes=40 SEQ=0008 TTL=64 ID=e9a2 time=6.001ms tx=3ms rx=3ms

2023-03-08 15:28:01.796: From 94.173.26.1: bytes=40 SEQ=0008 TTL=255 ID=8a26 time=6.401ms tx=3ms rx=3ms

2023-03-08 15:28:02.803: From 94.173.26.1: bytes=40 seq=0009 TTL=64 ID=c504 time=7.232ms tx=4ms rx=3ms

2023-03-08 15:28:02.803: From 94.173.26.1: bytes=40 SEQ=0009 TTL=64 ID=ecdd time=7.245ms tx=4ms rx=3ms

2023-03-08 15:28:02.803: From 94.173.26.1: bytes=40 SEQ=0009 TTL=255 ID=8a27 time=7.425ms tx=4ms rx=3ms

2023-03-08 15:28:03.797: From 94.173.26.1: bytes=40 seq=000a TTL=64 ID=c602 time=10.204ms tx=7ms rx=3ms

2023-03-08 15:28:03.797: From 94.173.26.1: bytes=40 SEQ=000a TTL=64 ID=f039 time=10.219ms tx=7ms rx=3ms

2023-03-08 15:28:03.797: From 94.173.26.1: bytes=40 SEQ=000a TTL=255 ID=8a28 time=10.265ms tx=7ms rx=3ms

2023-03-08 15:28:04.797: From 94.173.26.1: bytes=40 seq=000b TTL=64 ID=c82d time=6.941ms tx=4ms rx=3ms

2023-03-08 15:28:04.797: From 94.173.26.1: bytes=40 SEQ=000b TTL=64 ID=f1d1 time=6.956ms tx=4ms rx=3ms

2023-03-08 15:28:04.810: From 94.173.26.1: bytes=40 SEQ=000b TTL=255 ID=8a29 time=19.773ms tx=4ms rx=3ms

 

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1 REPLY 1

legacy1
Alessandro Volta

And finally VM did something ICMP timestamp to the gateway IP request gets one reply.😄

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