when configuring secondary ip addresses to vlan interfaces on an MSFC2 ip unreachables are disabled automatically. when reinstalling the unreachables there is a message like this:
ip secondary address exists, may affect IP HW switching between subnets
within the same vlan - out of sequence packets could occur
can somebody describe me a real network situation when these out of sequence packets could occur ? is the command just entered for protection of the MSFC2 or are there any real threats that have slipped my mind ?
(i do NOT use any ACLs on the interface, there is a document out that describes scenarios with ACL that I completely agree with).
thanks for any input.
mat