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[romerodiaz]

Dear friends, I have a DFL-800 and a L2 switch (DES-3028P). I have configured 3 vlans in the L2 switch, these 3 vlans have the port number 18 as a TAG.
In the DFL-800 I've configured these 3 vlans with their interfaces. The question is, how can I configure the DHCP Relay on the DFL-800? I'm trying to do that but it doesn't work. I've enabled the dhcp relay option on the switch.
Please let me know if anybody can help me.
Thanks in advance.

Luis.

[danilovav]

Descrive in more details, where and what you configured

[romerodiaz]

Switch DGS-3426P

config vlan default delete 1-26
create vlan vlan10 tag 10
create vlan vlan20 tag 20
create vlan vlan30 tag 30
config vlan vlan10 add untagged 1-5
config vlan vlan20 add untagged 6-10
config vlan vlan30 add untagged 11-15
config vlan vlan10 add tagged 18
config vlan vlan20 add tagged 18
config vlan vlan30 add tagged 18
save

DFL-800

- Address book --> add
ipif10   192.168.10.1  (vlan10 interface)
ipif10   192.168.20.1  (vlan20 interface)
ipif10   192.168.30.1  (vlan30 interface)
vlan10_net 192.168.10.0/24  (vlan10 net)
vlan10_net 192.168.20.0/24  (vlan20 net)
vlan10_net 192.168.30.0/24  (vlan30 net)

- Interfaces ---> VLAN ----> add

Name: vlan10
interface: lan
vlan ID: 10
IP address: ipif10
Network: vlan10_net


Name: vlan20
interface: lan
vlan ID: 20
IP address: ipif20
Network: vlan20_net

Name: vlan30
interface: lan
vlan ID: 30
IP address: ipif30
Network: vlan30_net

- Rules ---> IP Rules ---> add

Name: vlan10_to_vlan30
Action: Allow
Source interface: vlan10
Source network: vlan10_net
Destination interface: vlan30
Destination network: vlan30_net
Service: all_services

Name: vlan30_to_vlan10
Action: Allow
Source interface: vlan30
Source network: vlan30_net
Destination interface: vlan10
Destination network: vlan10_net
Service: all_services

** Only vlan10 and vlan30 can see each other.

The link between the switch and the firewall in with the TAG port.

In this situation the configuration works fine, I also enabled the dhcp relay in the switch.
According this configuration, I need to know how to configure the DHCP relay in both devices DFL an
switch.

[danilovav]

I dont see any DHCP server/relay configuation
Where is it located? DFL? Another server?
Just "allow" rules will not affect it because it's special kind of L2 traffic, but IP rules belongs to L3

[romerodiaz]

 I want to configure the DFL-800 as a DHCP server. As I said, this configuration is working, there are comunication between vlan10 and vlan30, so I need that the DFL-800 becomes a DHCP server for these vlans.

[danilovav]

So, just make two DHCP servers in System > DHCP > DHCP servers, what's problem?

[romerodiaz]

This is my question, how do I configure the dhcp server an dhcp relay in this firewall?

[danilovav]

Why you need relay? Just make DHCP server, it will be enouth