Dan Farrell wrote:
It's because of the metric of the routes in the routing table,
actually. Without routing, your computer talks to no one. Haven't you
ever set up a network connection by hand : ) ?
I hate to pull the "expert" card, but I was the network
engineer/architect who built Netzero's original network so I've got some
passing familiarity with this stuff.
1. Routing vs switching
Routing only happens if you are moving between subnets ie your server
is on 10.11.12.0/24 and your clients are on 10.11.88.0/24. If you're
into the OSI model this is layer 3. You said they that the clients and
server were on the same subnet so in that case they are not routing,
they are switching. Switching is layer 2 and does not require a gateway.
My handy analogy for non network engineers is a subnet is the block you
live on. You can reach any address on it without crossing the street. If
you want to get to another block you need to use a crosswalk. Crosswalks
require routing.
Because I assumed you were switching the gateway and routes do not
matter. So again, are your client AND server IPs on the same subnet or not?
2. broadcast domains
Assuming you have a switch (and I'm pretty much done assuming here)
broadcast domains are not an issue unless you have a few thousand
clients on it. Hubs as opposed to switches send all packets to all ports
and that is what causes broadcast storms. If you have a switch it'll
create a MAC address lookup table and switch by MAC address directly
instead of spamming all ports with all packets. In a simple office
network I wouldn't bother subneting the clients from the servers
especially since your router is likely to be an order of magnitude
slower than your switch.
3. virtual interfaces vs real interfaces
Yes virtual interfaces will do weird things. Real interfaces will not.
Testing with an real interface instead of an alias, you've got four,
should be easy and demonstrate the proper behavior.
So cough up a diagram of your network with IPs and masks to explain
exactly what you're doing because what you've explained so far makes
little sense to a former network professional.
kashani
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