> On 30 Nov 2022, at 08:20, Tom <li...@verreckte-cheib.ch> wrote: > > Hi list > > Regarding ARM 9.18.9 > (https://bind9.readthedocs.io/en/v9_18_9/reference.html#namedconf-statement-edns-udp-size): > "The named now sets the DON’T FRAGMENT flag on outgoing UDP packets." > > Tested with BIND-9.18.9, I didn't saw any UDP packets, where the "DF"-flag > was set on the IP header (true for TCP, but never seen for UDP). > > Which circumstands or which queries enforces BIND9 to set the "DF"-flag on > outgoing UDP-based packets?
I have checked on FreeBSD 13.1 and indeed I don’t see the flag. Neither for UDP queries or responses. What OS are you trying? Might be OS dependant. Borja. -- Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
