Clarification regarding HSRP / network configuration

Posted on 2013-09-29
Medium Priority
Last Modified: 2013-09-30
Hey guys... bear with me here, I'm very green at this.

I am in the process of moving several machines I had co-located with a company in San Francisco to my own cabinet at a data center here in Las Vegas.

I wanted my hardware close to home so that I could access it and I figured I should bite the bullet and just get my own space... now I'm a little confused at bringing everything online properly with all of the options this place offers.

The datacenter here offered a few ways at connectivity (single drop, BGP, and HSRP). I went ahead and chose HSRP. I was presented with some diagrams illustrating potential configuration layouts:

1. http://www.shadowleaf.com/hsrp1.jpg (switch)
2. http://www.shadowleaf.com/hsrp2.jpg (switch + router)

The networking hardware I have on hand:


If I go with option #1 it appears that I don't need to use the linksys router.

What I'm stumped about is how I actually set up the switch. There will be 2 drops that I plug into the WAN ports and I see in the diagram they have a "customer's default gateway" IP address.

What confuses me is that I also have a a "default gateway" address provided in the netblock. Which gateway am I supposed to use?

Might as well ask, is there any benefit to using the router? Would it allow me a way to see bandwidth consumption by port or can the switch do that?
Question by:mcainc
LVL 17

Accepted Solution

pergr earned 2000 total points
ID: 39532651
There must be a little miss-print on option #1.

You default gateway will be .65 in both options - it is the virtual IP created by HSRP.

.65 the virtual IP, so default gateway
.66 their router 1
.67 their router 2
.68 - for you.

You do not need a router, for routing. You may want to consider getting a firewall.
When deployed in #1 the firewall wall should be configured in "transparent mode" (which is layer 2).

Author Closing Comment

ID: 39535469
Now it makes sense! Thanks!

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