VPN setup w/ Cisco PIX 515e & MS Server 2003 IAS RADIUS authentication

Posted on 2007-07-24
Medium Priority
Last Modified: 2010-04-09
I've been staring at this all day... I'd very much appricate a second opinon at this point. I'm just not certain where the configuraiton is incorrect at this point

I believe that the MS Server side is setup correctly, as I'm much more confident with the MS side than the Cisco side of things. .

When trying to connect with the VPN client (3.6.2) I get the errors:
Sev=Warning/2     IKE/0xE300007C
Exceeded 3 IKE SA negotiation retransmits... peer is not responding

Sev=Warning/3     DIALER/0xE3300008
GI VPNStart callback failed "CM_PEER_NOT_RESPONDING" (16h)

My best guess at this point is that my ACL's are not correct... but I'm really not sure.

My PIX VPN config:

hostname PIX1
domain-name internalDomain.com
name HKP
name x.x.10.152 Internet
name x.x.10.157 external
access-list deny-flow-max 300
access-list vpn permit ip any
access-list vpn permit ip
ip address outside external
ip address inside HKP
ip address DMZ1
ip verify reverse-path interface outside
ip verify reverse-path interface DMZ1
ip local pool vpnIP
arp timeout 14400
nat (inside) 0 access-list vpn
nat (inside) 0 0 0
access-group smtp in interface outside
route outside x.x.10.158 1
aaa-server TACACS+ protocol tacacs+
aaa-server RADIUS protocol radius
aaa-server LOCAL protocol local
aaa-server partnerauth protocol radius
aaa-server partnerauth (inside) host  timeout 10
sysopt connection permit-ipsec
sysopt connection permit-pptp
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto dynamic-map outside_dyn_map 1 set transform-set ESP-3DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map
crypto map outside_map client authentication partnerauth
crypto map outside_map interface outside
isakmp enable outside
isakmp identity address
isakmp policy 20 authentication pre-share
isakmp policy 20 encryption 3des
isakmp policy 20 hash md5
isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
vpngroup HKP address-pool vpnIP
vpngroup HKP dns-server
vpngroup HKP wins-server
vpngroup HKP default-domain internalDomain.com
vpngroup HKP idle-time 1800
vpngroup HKP password ********
vpngroup wins-server idle-time 1800
Question by:wasabikev
  • 3

Expert Comment

ID: 19562485
access-list vpn permit ip any
nat (inside) 0 0 0

also i dont see any preshare key. how will firewall respond ??

add the key using this comand :
isakmp key <presharekey> address <remote public address> netmask
LVL 79

Accepted Solution

lrmoore earned 1500 total points
ID: 19564512
>aaa-server partnerauth (inside) host  timeout 10
>ip address inside

How are you setting up this server on the inside, using same IP subnet as the vpnIP pool, when all of your other inside  hosts are 192.168.200.x ?
Do you have another route statement somewhere?
LVL 79

Expert Comment

ID: 19564526

Author Comment

ID: 19569090
I'm an 1d10t

The PIX is our external firewall.  There is then the DMZ (, and then there's an ISA firewall between the DMZ and the internal network. (  So yea... there's addtional route statements.

Perhaps I'll have to rethink this.  
LVL 79

Expert Comment

ID: 19569156
firewall behind a firewall makes for nice troublshooting headache and that's about it.

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