Does fragmentation always happen on an IPV6 source node if the Data to
send is greater than the Link MTU.

I was wondering, if there is any socket option to disable this IPV6
source node fragmentation, and get back an Error if trying to send Data
greater than Link MTU?

Regards,
Prathap

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Mon, Dec 26, 2005 at 10:33:00, prathap.bgl (Prathap) wrote about "IPV6 Fragm
entation.":

P> Does fragmentation always happen on an IPV6 source node if the Data to
P> send is greater than the Link MTU.
Yes.

P> I was wondering, if there is any socket option to disable this IPV6
P> source node fragmentation, and get back an Error if trying to send Data
P> greater than Link MTU?

It isn't available in standard API even for IPv4. Generally this
option is useless because in most cases the closest link has MTU
1500, but MTU is reduced on farther links.

The better idea is to have some mechanism similar to TLI/XTI
t_rcvuderr() in BSD sockets, but we have what we have.


-netch-

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