[nsd-users] Possible fragmentation issue transferring larger zones over IPv6?

Andreas Schulze sca at andreasschulze.de
Sun Mar 30 13:11:12 UTC 2014

Darren Pilgrim:

>> After upgrading NSD version (from 4.0.1 to 4.0.3) and after applying
>> Wouter's suggestion (--disable-recvmmsg configure) nothing has changed.


<may be incorrect>
   as far as I learned on IPv6, fragmentation is not allowed anymore.

   In v4 an app/host could send a huge packet and router/gateways  
where allowed to fragment as needed.
   In v6 a router/gateways are not allowed to fragment a packet. They  
has to send back an "ICMP Packet too big"
   And the app/host has to resend again in smaller portions.


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