09-21-2016 12:44 PM - edited 02-21-2020 08:59 PM
Hi,
Currently there is a requirement in our organisation to use DHCP Server to assign IP address for Remote VPN users. The DHCP Service runs on a Windows server and I have created a scope that need to be assigned to the users. DHCP Server IP address is 10.61.100.120.
I have configured the below commands on the Cisco ASA. The DHCP server is not directly connected to the firewall but has a reachability through inside interface.
!
interface GigabitEthernet0/0
nameif inside
security-level 100
ip address 10.1.1.1 255.255.255.248
!
interface GigabitEthernet0/1
nameif outside
security-level 0
ip address 185.100.19.2 255.255.255.240
group-policy WIN-VPN internal
group-policy WIN-VPN attributes
dhcp-network-scope 10.61.24.0
vpn-idle-timeout 240
vpn-tunnel-protocol ssl-client
password-storage disable
webvpn
anyconnect profiles value win-vpn-profile type user
tunnel-group WIN-VPN type remote-access
tunnel-group WIN-VPN general-attributes
authorization-server-group LDAP
authorization-server-group (inside) LDAP
default-group-policy WIN-VPN
dhcp-server 10.61.100.120
username-from-certificate CN
tunnel-group WIN-VPN webvpn-attributes
group-alias WIN-VPN enable
group-url https://vpn-test.xxx.com/WIN-VPN enable
After the user authentication , I see the IP address are not getting assigned to the user and getting failed connection. Also in the DHCP server, I see traffic from the ASA inside interface sending a query but see no reply from DHCP server.
Can someone help me if anything is missing in the above configuration. or do I need to setup anything on the DHCP server for these configuration to work.
Also I don't understand how this will work without enabling dhcp-reply on the Cisco ASA firewall ??
Looking for a immediate reply for it.
09-21-2016 06:57 PM
The configuration looks pretty good, if you want to double check it this guide gives you the config steps and explains how dhcp works with Remote Access Clients:
http://www.cisco.com/c/en/us/support/docs/security/anyconnect-secure-mobility-client/118084-configure-anyconnect-00.html
The server config is kind of out my scope but you can use this guide:
https://technet.microsoft.com/en-us/library/cc732584(v=ws.11).aspx
Hope this info helps!!
Rate if helps you!!
-JP-
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