Layer 3 Switching Configuration

[vinsanity02]

Hi all,

What's the Layer 3 switching configuration of this network environment?

vlan 1 = 10.65.0.0/24 (switches, routers, network printers, windows servers)
vlan 2 = 10.65.1.0/24 (unix servers, unix ws)
vlan 3 = 10.65.2.0/23, 10.65.3.0/23 (DHCP IP addresses for windows ws)

Considering, vlan 1 & 3 can communicate, while vlan 2 cannot communicate with vlan 1 & 3.

int vlan 1

ip address 10.65.0.1 255.255.255.0

no shutdown

int vlan 2

10.65.1.1 255.255.255.0

no shutdown

I have no idea for vlan 3..

[Jon Marshall]

It's not clear from your post exactly what the issue is. Could you clarify exactly what the problem is ?

Jon

[Richard Burts]

The way that you are asking the question seems to indicate that you see 10.65.2.0/23 and 10.65.3.0/23 as separate networks. But with the /23 mask they are both the same subnet. So either of these configurations should work:

interface vlan 3

ip address 10.65.2.1 255.255.254.0

no shutdown

or

interface vlan 3

ip address 10.65.3.1 255.255.254.0

no shutdown

HTH

Rick

[Nelson Galimba · Accepted solution]

Since you give the DHCP 10.65.2.0/23, are you saying that you want VLAN 3 to have  a DHCP address?  If you are going to statically assign an IP address within the  range, you should block out some static IP's.  Give one of those  to VLAN 3, similar to the interface configuration as the other two VLANs.

If want to use DHCP, your config would look like this:

int vlan 3

  ip address dhcp

[phugiay]

Oh, I didn't know you use ip address dhcp . What happen if I want one particular scope on this VLAN? 

[vinsanity02]

Thanks for the help..