Re: IP-ID field of ICMP echo request

[Maciej Soltysiak <solt@xxxxxxxxxxxxxxxxx>]

> I found a strange packet, which is generated by ping of Linux.
> It is observed ID field of IP header in ping packet (Echo request) is always 
> 0.
>
> I confirmed this on kernel 2.4.18 and 2.4.21.
> My colleague also confirmed this is fixed in kernel 2.5.74.
>
> I hope this is fixed in next next 2.4.x release.
RFC 792 says:
...
Identifier

   If code = 0, an identifier to aid in matching echos and replies,
   may be zero.
...

I guess it is okay to have 0 as IPID.

Regards,
Maciej