Re: Avoiding Packet duplication



On Oct 27, 1:13 am, Aaron Leonard <Aa...@xxxxxxxxx> wrote:
~ Hi,
~
~ How to avoid packet duplication ?
~
~ Thx in advans,
~ Karthik Balaguru

Implement sequence numbers.

Refrain from transmitting packets.

Like any other protocol, i use sequence number (for segmentation, re-
assembly, re-transmit,
transmission/reception)

To put it in other way :
If i am transmitting(Tx) 2 packets with sequence number 1 and sequence
number 2.
I should received only packets with sequence number 1 and sequence
number 2 on the Receiver(Rx) side.
But, i get 4 packets with sequence number 1 and another 4 packets with
sequence number 2.
I am sending only once(Only one time) the 2 packets with sequence
number 1 and sequence number 2.
Till the point it is going into the Air, i have only 2 packets.
But at the reception end (after the Air travel), i get duplicated
packtes in sequence.

But, how does it get replicated(duplicated) on the receiver side ?
(It is flooding my Receiver).

Any ideas to avoid it ?

Thx in advans,
Karthik Balaguru

.



Relevant Pages

  • Re: ARP Spoof Question
    ... The TCP sequence number *should* be cryptographically ... 100 consecutive connections), I SHOULD NOT be able to predict the next ... > spoofed ARP packets to receive packets but have been unable to locate ... > my switch table. ...
    (Security-Basics)
  • Re: Help with an odd log file...
    ... I'm getting the same types of packets to a router - since May 17. ... probes that come a few seconds apart. ... Sequence is always ... and is some sort of homing signal for a complex trojan. ...
    (Incidents)
  • Re: Avoiding Packet duplication
    ... Implement sequence numbers. ... Refrain from transmitting packets. ... how does it get replicatedon the receiver side? ... the retransmissions can happen at either layer 2 or layer 3 ...
    (alt.internet.wireless)
  • RE: [fw-wiz] IPSEC over load-shared T1s (per packet)
    ... The packets were being sent over alternating links in strict round-robin, ... which meant that the ESP packets sometimes arrived out of sequence. ... > that a session started and sent via one t1 remains directed ... >> IPSec it's left up to the implementation. ...
    (Firewall-Wizards)
  • RE: [fw-wiz] IPSEC over load-shared T1s (per packet)
    ... Another theory that someone had was the CRC was failing because the packets ... router here and at the NOC, so the count hop and speed is exactly the same, ... mandatory sequence number in the ESP header. ... The receiveing IPSec doesn't ...
    (Firewall-Wizards)