[e2e] ICMP & TCP segments with IP ID = 0?

Andi Kleen ak at muc.de
Wed May 16 11:47:40 PDT 2001

On Wed, May 16, 2001 at 07:29:46PM +0200, Tushar Saxena wrote:
> Also, looking at some traces on the web, it seems like some
> implementations of BOOTP/DHCP may also be leaving ID
> undefined in the ip packet containing the bootp-udp
> datagram.  I looked at ipconfig.c in the linux kernel,
> in function ic_bootp_send_if(), and it also seems to
> turn on IP_DF in the iphdr, and set all the iphdr fields,
> but leave the ID undefined (probably 0).

It's not undefined, it is fixed to 0 by a memset in that function.


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