Path: utzoo!attcan!uunet!seismo!ukma!tut.cis.ohio-state.edu!zaphod.mps.ohio-state.edu!usc!ucsd!ucbvax!VENERA.ISI.EDU!postel From: postel@VENERA.ISI.EDU Newsgroups: comp.protocols.tcp-ip Subject: Re: Duplicate packets in Internet. Message-ID: <9006011814.AA09684@bel.isi.edu> Date: 1 Jun 90 18:14:31 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 33 Dheeraj: Just run "ping" thru any NSS. You get back more echo-replies than echo-requests you sent. Somebody is duplicating something somewhere. --jon. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ % ping lcs.mit.edu PING lcs.mit.edu: 56 data bytes 64 bytes from 18.26.0.36: icmp_seq=0. time=499. ms 64 bytes from 18.26.0.36: icmp_seq=1. time=360. ms 64 bytes from 18.26.0.36: icmp_seq=1. time=360. ms 64 bytes from 18.26.0.36: icmp_seq=2. time=340. ms 64 bytes from 18.26.0.36: icmp_seq=3. time=320. ms 64 bytes from 18.26.0.36: icmp_seq=4. time=360. ms 64 bytes from 18.26.0.36: icmp_seq=5. time=400. ms 64 bytes from 18.26.0.36: icmp_seq=5. time=440. ms 64 bytes from 18.26.0.36: icmp_seq=6. time=339. ms 64 bytes from 18.26.0.36: icmp_seq=6. time=339. ms 64 bytes from 18.26.0.36: icmp_seq=7. time=380. ms 64 bytes from 18.26.0.36: icmp_seq=8. time=340. ms 64 bytes from 18.26.0.36: icmp_seq=9. time=340. ms 64 bytes from 18.26.0.36: icmp_seq=10. time=380. ms 64 bytes from 18.26.0.36: icmp_seq=10. time=440. ms 64 bytes from 18.26.0.36: icmp_seq=11. time=340. ms ^C ----lcs.mit.edu PING Statistics---- 12 packets transmitted, 16 packets received, -33% packet loss round-trip (ms) min/avg/max = 320/373/499 % ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~