6248 VLAN do not receive the DHCP scope

I created two new DHCP scopes in my windows server 2003:

192.168.2.0 - public, and
192.168.3.0 - VOIP.

This DHCP server is connected to a Dell powerconnect 2708, which is connected to our new powerconnect 6248P via fiber point-to-point.

In the new computers on network on the default 1 VLAN are correctly attributed IPs as they connect.

I issued the following commands to the 6248 CLI:

Enable
Configure
database of VLAN
VLAN 20
VLAN 30
output

Configure
range of interface ethernet 1/1-g1/g2
switchport mode general
VLAN allowed switchport General add 20
switchport General pvid 20
l2relay DHCP
output

Configure
range of interface ethernet 1/1-g3/g6
switchport mode general
VLAN allowed switchport General add 30
switchport General pvid 30
l2relay DHCP
output

interface ethernet 1/g11
switchport mode general
VLAN allowed switchport General add 20
VLAN allowed switchport General add 30
l2relay DHCP
output

Configure
interface vlan 20
name 'PUBLIC '.
Routing
IP 192.168.2.1 255.255.255.0
IP helper 192.168.1.150
output

Configure
interface vlan 30
name "VOIP."
Routing
address 192.168.3.1 255.255.255
IP helper 192.168.1.150
output

IP routing

I also added all traffic on VLAN 20 and 30 of VLAN on ports 1/g11 (6248) and port 2 (2708). VLAN 1 access was removed from ports 1/1/g1-g6 (6248)

Everything seems to have been set correctly, but I can't get a response from the DHCP server on all ports attached to VLAN 20. The powerconnect 2708 switch is unable to pass the baton to the server? Is it possible that something falls in the point to point?

I would greatly appreciate any comments or suggestions, thanks!

The 6248 has no default gateway. It wont let me put 192.168.1.1 because he does not reside in the same subnet as the 6248 (192.168.99.1)

The 2708 has listed 192.168.1.1 as its default gateway.

At this point, the network has too many complexities for me to unravel. I am very happy that at least I solved for DHCP when we finally migrate our server to the new location.

Once the server is up, and the gateway/firewall are directly connected to the 6248; I will review the correct configuration of this network.

Some advice to those who might have a similar problem: check your management VLAN. It may not be the same VLAN 1 if you plan to routing to work from VLAN 1 to nowhere else because the VLAN management cannot be routed. Also check static routing of your access point, make sure the front door has a return of the ips of your VLAN, IE: 192.168.2.0 255.255.255.0 gateway_ip

That's all for now. Thank you to all who have contributed

Tags: Dell Switches

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