Ensuring packet order in UDP

Question

I\'m using 2 computers with an application to send and receive udp datagrams. There is no flow control and ICMP is disabled. Frequently when I send a file as UDP datagrams v

Answer 1

there is no flow control (ICMP disabled)

You can implement your own flow control using UDP:

• Send one or more UDP packets
• Wait for acknowledgement (sent as another UDP packets from receiver to sender)
• Repeat as above

See Sliding window protocol for further details.

[This would be in addition to having a sequence number in the packets which you send.]