1x DHCP Server 2019 - multiple VLANs - what am I doing wrong?

[frankygth]

I’m having an Extreme Networks x460 Switch and 2 VLANs. On VLAN 11 there’s a Windows Server 2019 located which has 2 scopes (for the different vlans)

VLAN 11 IP Switch: 192.168.11.253/24
IP DHCP Server: 192.168.11.1

VLAN 193 IP Switch: 192.168.193.253/24

I’m able to ping the DCHP Server from the Switch

I did a config bootprelay add 192.168.11.1 vr VR-Default
Also enable bootprelay VLAN VLAN11
and enable bootprelay VLAN VLAN193

and last but not least: enable ipforwarding vlan11
and enable ipforwarding vlan193

When I connect a client to VLAN 193 I’m not getting an IP Adress.

The DHCP Server has a Scope for: 192.168.11.100-110 and a Scope for: 192.168.193.100-110

[frankygth · Accepted solution]

I found the error and it’s working now - thank you!! 
The problem was the getting back to the VLAN . The Problem was more firewall related then switch related. Best Regards, Frank PS: Wireshark did the trick

[frankygth]

I’m wondering if: DHCP Relay Agent Information Option : Disabled on virtual router "VR-Default" this could be the Problem?

[frankygth]

EXOS-VM.34 # sh bootprelay
Bootprelay : Disabled on virtual router "VR-Default", but enabled on some VLANs
Include Secondary : Disabled
DHCP Relay Agent Information Option : Disabled on virtual router "VR-Default"

Bootprelay servers for virtual router "VR-Default":
    Destination: 192.168.11.1

DHCP/BOOTP relay statistics for virtual router "VR-Default"
    Received from client =          4  Received from server =          0
    Requests relayed     =          4  Responses relayed    =          0
    DHCP Discover        =          4  DHCP Offer           =          0
    DHCP Request         =          0  DHCP Ack             =          0
    DHCP Decline         =          0  DHCP NAck            =          0
    DHCP Release         =          0
    DHCP Inform          =          0

I think the Client is asking for DHCP but I’m not sure if the switch itself drops the packet. To me it seams as if the switch is not going to forward the offer to the DHCP server? What do you think?

[frankygth]

sh vlan
Untagged ports auto-move: Inform
-----------------------------------------------------------------------------------------------
Name            VID  Protocol Addr       Flags                         Proto  Ports  Virtual
                                                                              Active router
                                                                              /Total
-----------------------------------------------------------------------------------------------
Client-193      193  192.168.193.253/24  -f------------------------    ANY    1 /6   VR-Default
Default         1    ----------------------------------------------    ANY    0 /0   VR-Default
Mgmt            4095 ----------------------------------------------    ANY    0 /1   VR-Mgmt
Verwaltung-11   11   192.168.11.253 /24  -f------------------------    ANY    1 /6   VR-Default

[frankygth]

EXOS-VM.23 # sh iproute
Ori  Destination        Gateway         Mtr  Flags         VLAN       Duration
#d   192.168.11.0/24    192.168.11.253  1    U------um--f- Verwaltung-11 0d:0h:31m:25s
#d   192.168.193.0/24   192.168.193.253 1    U------um--f- Client-193 0d:0h:31m:25s

[BradP]

hi Frankygth 
First thing I would do is get a packet capture on the server and see if the Discover is coming in and the Offer is going out. 
 

Brad