DHCP Access - Firewall

pablo.arcelcr — Tue, 12 Mar 2019 09:49:47 GMT

Hi,

I setup a Firewall (Firewall 2) as a requirement for one client, since they requested to seperate from the rest of our infraestructure.

In the Firewall I setup two subinterfaces, one for the PCs and another one for the Phones:

g0/0/0.134 10.1.250.0/24 --- DATA

g0/0/0.135 10.1.251.0/24 --- VOICE

Additional to this the Firewall (Firewall 2) is connected to our core switch on firewall port g0/0/0 and it is setup as trunk

In the Core the VLANs are defined as Layer 2 VLANs only.

And the in the Firewall 1 lived the rest of my VLANs (Layer 3) including the server VLAN

How can I do that the segments defined in the Firewall 2 can be distribuited by my DHCP server who has an IP address from my Server VLAN segment that lives in the Firewall 1?

Attached image.

Thanks.

If i understand you correctly

Mohammad Alhyari — Tue, 15 Aug 2017 21:31:48 GMT

If i understand you correctly. You can use DHCP relay:

broadcast will be received by firewall 2 and converted into a unicast packet then forwarded to the dhcp server.

https://www.cisco.com/c/en/us/support/docs/security/adaptive-security-appliance-asa-software/116265-configure-product-00.html

topic If i understand you correctly in Network Security

DHCP Access - Firewall

If i understand you correctly