From: "Philip Prindeville" <redacted>
Date: Tue, 7 Jun 2016 13:48:46 -0600
From: Philip Prindeville <redacted>
In the presence of firewalls which improperly block ICMP Unreachable
(including Fragmentation Required) messages, Path MTU Discovery is
prevented from working.
A workaround is to handle IPv4 payloads opaquely, ignoring the DF bit--as
is done for other payloads like AppleTalk--and doing transparent
fragmentation and reassembly.
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Philip Prindeville <redacted>
I think the feedback that this feature should be mutually exclusive
to pmtudisc is valid and you should address that.