Running Alteon back into another switch

I have an issue which is somewhat of a general networking question, but 
there's a load balancer in the middle of it, so I'm asking here.

Here's my current setup:

A Cisco 6506 has all of my non-load balanced hardware and my uplinks 
plugged into it.  All general ports  are on VLAN 10

2 bonded Fiber links from the 6506 to an Alteon 184.

3 load balanced machines plugged directly into the Alteon.  All Alteon 
ports are also VLAN 10

All this works.

What I want to do is, instead of plugging the load balanced machines 
directly into the Alteon, I want to run a link from the Alteon back to 
ports on the 6506 on different VLANs.  Then I can plug as many things 
behind the load balancer as I want as long as I don't go over the 
bandwidth supplied by the links to the alteon and back.

I've been testing this however, and it's not as easy as it seems like it 
should be.

I set 2 ports on the 6506 to:
  switchport
  switchport access vlan 60
  switchport mode access
  no cdp enable

I plugged port 6 (not doing vlan tagging) on the Alteon into one of the 
vlan 60 ports on the 6506 and I plugged a test machine into the other 
vlan 60 port.

I set up a real server on in the Alteon with the IP address of the test 
machine.

After all this, the test machine can access the Alteon and any machines 
connected directly to it, but it can't contact the 6506 or any machines 
hooked to it.

Another note, all machines here are using IP addresses in the same C 
block, if this matters.  Direct Access Mode on the Alteon is on as well, 
so things should be able to access its IP directly.

Anyone know what I'm missing here?

-- 
Alex Thurlow
Blastro Networks

http://www.blastro.com
http://www.roxwel.com
http://www.yallwire.com

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