VPN clients cannot access hosts in a DMZ attached by a VPN tunnel

piemckay used Ask the Experts™
I have an ASA 5510 that remote users connect to with VPN client.  This has been working fine for access to resources on the inside interface.  I now have another interface ( that is used as the gateway to get to resources at an Oracle datacentre (  The network is connected to us with a netscreen vpn box.  We then connect to the trused side of that.  Access is fine from the inside of our network but I cannot get the VPN clients to connect.  I am getting syn ack timeouts on the logs.

The config snippet is below.  VPN users come in on the outside interface and the VPN device is attached via the Oracle interface:

interface Ethernet0/0
 description Outside interface to 4 Mb Telstra Internet
 nameif Outside
 security-level 0
 ip address
interface Ethernet0/1
 description Inside interface Salford LAN
 nameif Inside
 security-level 100
 ip address
interface Ethernet0/2
 description Test Oracle DMZ
 nameif Oracle
 security-level 50
 ip address

ip local pool Salford_Temp_Pool mask

global (Outside) 10 interface
global (Oracle) 10 interface

nat (Inside) 0 access-list Inside_nat0_outbound
nat (Inside) 10

route Outside 1
route Inside 1
route Oracle 1

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First, you need a Static statement for the VPN box in the DMZ to be visible to the outside:
static (Oracle, Outside) will allow the VPN box at to appear as

Then, allow the type of vpn traffic that is required...ESP is IP 50 and IKE is UDP 500..etc...via
access-list allowin permt udp any host eq 500
access-list allowin permit esp any host

...what are you using on the netscreen to encap your traffic?


I cannot confirm the outcome of this problem. Points are awarded for contibuton.

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