That makes sense and I have also read the same thing.  The thing is
though, that the ASA never even sends the initial DHCPREQUEST packet.
That is what is baffling.  Aside from that, even if I could get that
to happen I literally can't create a virtual interface on my ASA with
an IP in the same subnet as the DHCP pool because it is a 5505 with a
base license and I have already defined the maximum 3 routed SVI
interfaces.

2012/3/7 Ernesto González <[email protected]>:
> "By default, the firewall will set the giaddr field in DHCP packets to the
> IP address of the interface used to query the DHCP server. This will
> restrict address allocation only to one subnet, directly connected to the
> firewall. In order to overcome this limitation you may use the group-policy
> command dhcp-network scope <Giaddr> to specify the giaddr field in DHCP
> packets. The server will then select matching pool based on this value.
>
> However, there is a caveat here. The DHCP server will reply with a DHCP
> packet to the IP addr specified in giaddr field. Therefor you need a way to
> ensure the firewall advertises this IP address and may respond to it. The
> simplest hack to accomplish this is to create a "virtual" interface using an
> ethernet VLANs and assing it the IP address of giaddr."
>
> group-policy SSLClient attributes
>  dhcp-network-scope 10.1.100.12  <<< Change 10.1.100.0 to 10.1.100.X
>
> Then,
>
> !This VLAN should not be trunked to ASA
>
> interface ethernet0/1.100  <<< For example
>  vlan 100
>  nameif Loopback0
>
>  security-level 100
>  ip address 10.1.100.12 255.255.255.0  <<< 10.1.100.X
>
>
> --
> Ernesto Gonzalez G.



-- 
Regards,

Joe Astorino
CCIE #24347
http://astorinonetworks.com

"He not busy being born is busy dying" - Dylan
_______________________________________________
For more information regarding industry leading CCIE Lab training, please visit 
www.ipexpert.com

Are you a CCNP or CCIE and looking for a job? Check out 
www.PlatinumPlacement.com

Reply via email to