[Users] Hosted-Engine purpose for gateway check?

[Andrew Lau]

Hi,

I was recently playing around with the new ovirt 3.4 ga, I'm very
happy all those issues I reported got fixed :D

I found a new issue regarding the use of PREFIX vs NETMASK which I've
uploaded here https://bugzilla.redhat.com/show_bug.cgi?id=1084685

Anyway -- I'm wondering what is the purpose for the gateway check in
the hosted-engine setup? In my test case, I had the following NIC
configuration

eth0 - public (has gateway)
eth1 - management
eth1.1 - storage
eth2 - vm data (no IP address)

So during the hosted engine install, it will not let me assign eth2 as
the NIC because it has no IP address or gateway. So I proceed to use
eth1 instead as, as it has an IP address but again that would fail
because no gateway. Luckily I have a L3 switch, so I put up a gateway
for eth1 and that solved that issue.

What is the gateway check supposed to achieve? I also tried to put in
my eth0's IP address as the gateway but it still failed because of
those config issues. If management/ovirtmgmt/vmdata are all on a L2
switch environment, effectively there becomes no gateway and it
prevents the installation.

Am I looking at this the wrong way?

Thanks,
Andrew