Incorrect route interface

[Grzegorz Junka]

On 11/03/2018 20:57, Marek Zarychta wrote:
> On Sun, Mar 11, 2018 at 05:46:52PM +0000, Grzegorz Junka wrote:
>> On 11/03/2018 06:04, Eugene Grosbein wrote:
>>> 11.03.2018 7:01, Grzegorz Junka wrote:
>>>
>>>>> Just do not assign addresses from same network 10.20.0.0/16 to different network interfaces
>>>>> and you will be fine. Assign them all to right interface:
>>>>>
>>>>> ifconfig_em0="inet 10.20.2.14 netmask 255.255.0.0"
>>>>> ifconfig_em0_alias0="inet 10.20.2.15/32"
>>>>> ifconfig_igb0_alias0="inet 10.20.2.16/32"
>>> Interfaces meant to be all equal, last line should be:
>>>
>>> ifconfig_em0_alias1="inet 10.20.2.16/32"
>>>
>> OK, I see. So this is in case I want many IPs assigned to the same
>> interface. What if I want one IP assigned to multiple interfaces (i.e.
>> so that the additional igb0-3 effectively work as a 4-port switch)?
>>
> Please consider bonding all NICs as one bridge(4) interface. Then
> multiple IPs could be assigned to such interface.
>

Many thanks Eugene and Marek for your suggestions. I will now need to 
decide if I want to fragment the network into subnets or bridge the 
interfaces.
GregJ