07-12-2020 04:56 AM
I have a Cisco Router 2921 which i am using to establish a VPN Connection to a remote site. I would like to access the internal network but most especially the server ip 192.168.90.222. I have managed to establish the vpn connection and i have also been able to ping the internal interface 192.168.90.1 but i cannot reach, ping or remote desktop the server and any other resources.
My Current Config looks like this;
crypto isakmp policy 100
encr 3des
authentication pre-share
group 2
!
crypto isakmp policy 101
encr 3des
hash md5
authentication pre-share
group 2
!
crypto isakmp client configuration group GroupVPN
key lw-sfh
dns 192.168.90.222
domain studiofh.net
pool VPNPOOL
acl 120
max-users 5
!
!
crypto ipsec transform-set SetVPN esp-3des esp-md5-hmac
!
crypto ipsec profile VPN-Profile-1
set transform-set SetVPN
!
!
crypto dynamic-map DynamicVPN 100
set transform-set SetVPN
reverse-route
!
!
crypto map StaticMap client authentication list UserVPN
crypto map StaticMap isakmp authorization list GroupVPN
crypto map StaticMap client configuration address respond
crypto map StaticMap 20 ipsec-isakmp dynamic DynamicVPN
!
!
!
!
!
interface GigabitEthernet0/0
ip address x.x.x.x x.x.x.x
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
crypto map StaticMap
!
interface GigabitEthernet0/1
ip address 192.168.90.1 255.255.255.0
ip nat inside
ip virtual-reassembly
duplex auto
speed auto
!
interface GigabitEthernet0/2
no ip address
duplex auto
speed auto
!
interface FastEthernet0/0/0
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet0/0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Virtual-Template2 type tunnel
ip address 192.168.40.1 255.255.255.0
tunnel mode ipsec ipv4
!
ip local pool VPNPOOL 192.168.40.20 192.168.40.25
ip forward-protocol nd
!
ip http server
no ip http secure-server
!
ip nat inside source list 100 interface GigabitEthernet0/0 overload
ip route 0.0.0.0 0.0.0.0 x.x.x.x
!
access-list 100 remark [Deny NAT for VPN Clients]=-
access-list 100 deny ip 192.168.90.0 0.0.0.255 host 192.168.40.20
access-list 100 deny ip 192.168.90.0 0.0.0.255 host 192.168.40.21
access-list 100 deny ip 192.168.90.0 0.0.0.255 host 192.168.40.22
access-list 100 deny ip 192.168.90.0 0.0.0.255 host 192.168.40.23
access-list 100 deny ip 192.168.90.0 0.0.0.255 host 192.168.40.24
access-list 100 deny ip 192.168.90.0 0.0.0.255 host 192.168.40.25
access-list 100 remark -=[Internet NAT Service]=-
access-list 100 permit ip 192.168.90.0 0.0.0.255 any
access-list 120 remark ==[Cisco VPN Users]==
access-list 120 permit ip 192.168.90.0 0.0.0.255 192.168.40.0 0.0.0.255
access-list 120 permit ip any host 192.168.40.20
access-list 120 permit ip any host 192.168.40.21
access-list 120 permit ip any host 192.168.40.22
access-list 120 permit ip any host 192.168.40.23
access-list 120 permit ip any host 192.168.40.24
access-list 120 permit ip any host 192.168.40.25
I wonder what is missing in my config. Please help?
07-12-2020 05:16 AM
Hi,
Can the router itself ping the rdp server?
Is the router the default gateway for the rdp server/other resources? If not do they have a route to the VPN Pool Network?
Temporally test without Nat enabled
07-12-2020 10:31 AM
Thank you Rob for your reply. I really appreciate.
The router can ping the rdp server.
The router 192.168.90.1 is the default gateway for the internal network and all the resources.
Thank you
07-12-2020 05:31 AM
you have followed the same example as below :
http://www.firewall.cx/cisco-technical-knowledgebase/cisco-routers/809-cisco-router-vpn-client.html
couple of question :
do you have Firewall enabled on Windows Server?
can you locally RDP to Server?
07-12-2020 10:35 AM
Hi Bandi,
Yes i used that example as i was configuring the VPN on my Cisco Router.
Yes i have a firewall enabled on the Windows Server.
And i can rdp to the server locally.
But still i can't seem to access it over VPN.
07-12-2020 12:26 PM
Yes i have a firewall enabled on the Windows Server.
disable and try RDP and let us know.
07-13-2020 01:33 AM
I have disabled the Firewall but still no access.
07-12-2020 01:55 PM
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