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Cisco Pix to ASA - Site to Site VPN not coming up

Posted on 2009-07-09
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Last Modified: 2012-05-07
I am attmepting to setup a second site to site VPN tunnel on a Cisco Pix 501.  I am having trouble with it.  This is first time where the destination fiewall (cisco ASA) subnet is not a private subnet and I believe this is throwing me off.

The ASA's firewall IP is 204.xxx.xx8.249, whereas its subnet that I need to communicate with is 204.xxx.xx9.0.  The local subnet on the Pix is 192.168.73.x.

I turned on the logging and this is the only thing I am seeing.

IPSEC(sa_initiate): ACL = deny; no sa created

The pre-existing vpn tunnel is working just fine.

Curent config of the Pix is below.  Any ideas?

Thanks!
interface ethernet0 auto

interface ethernet1 100full

nameif ethernet0 outside security0

nameif ethernet1 inside security100

hostname bugsfw

domain-name uncovr945

fixup protocol dns maximum-length 512

fixup protocol ftp 21

no fixup protocol h323 h225 1720

no fixup protocol h323 ras 1718-1719

no fixup protocol http 80

no fixup protocol rsh 514

no fixup protocol rtsp 554

no fixup protocol sip 5060

no fixup protocol sip udp 5060

no fixup protocol skinny 2000

fixup protocol smtp 25

no fixup protocol sqlnet 1521

no fixup protocol tftp 69

no names

access-list inbound permit icmp any any echo-reply

access-list nonat permit ip 192.168.73.0 255.255.255.0 10.214.30.0 255.255.255.0

access-list nonat permit ip 192.168.73.0 255.255.255.0 192.168.2.0 255.255.255.0

access-list nonat permit ip 192.168.73.0 255.255.255.0 204.xxx.xx9.0 255.255.255.0

access-list split permit ip 192.168.73.0 255.255.255.0 10.214.30.0 255.255.255.0

access-list 102 permit ip 192.168.73.0 255.255.255.0 192.168.2.0 255.255.255.0

access-list 101 permit ip 192.168.73.0 255.255.255.0 204.xxx.xx9.0 255.255.255.0

pager lines 24

mtu outside 1500

mtu inside 1500

ip address outside 71.xxx.xxx.248 255.255.255.0

ip address inside 192.168.73.254 255.255.255.0

ip verify reverse-path interface inside

ip audit info action alarm

ip audit attack action alarm

ip local pool uncrpool 10.214.30.1-10.214.30.254 mask 255.255.255.0

pdm logging informational 100

pdm history enable

arp timeout 14400

global (outside) 1 interface

nat (inside) 0 access-list nonat

nat (inside) 1 0.0.0.0 0.0.0.0 0 0

access-group inbound in interface outside

route outside 0.0.0.0 0.0.0.0 71.xxx.xxx.1 1

timeout xlate 0:05:00

timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00

timeout h323 0:05:00 mgcp 0:05:00 sip 0:30:00 sip_media 0:02:00

timeout sip-disconnect 0:02:00 sip-invite 0:03:00

timeout uauth 0:05:00 absolute

aaa-server TACACS+ protocol tacacs+

aaa-server TACACS+ max-failed-attempts 3

aaa-server TACACS+ deadtime 10

aaa-server RADIUS protocol radius

aaa-server RADIUS max-failed-attempts 3

aaa-server RADIUS deadtime 10

aaa-server LOCAL protocol local

no snmp-server location

no snmp-server contact

floodguard enable

sysopt connection permit-ipsec

crypto ipsec transform-set uncrset esp-3des esp-md5-hmac

crypto ipsec transform-set uncrus_ca esp-3des esp-md5-hmac

crypto ipsec transform-set uncrus_ihs esp-3des esp-md5-hmac

crypto ipsec security-association lifetime seconds 14400

crypto dynamic-map uncrdyna 90 set transform-set uncrset

crypto dynamic-map uncrdyna 90 set security-association lifetime seconds 7200 kilobytes 4608000

crypto map uncrmap 1 ipsec-isakmp

crypto map uncrmap 1 match address 102

crypto map uncrmap 1 set peer 75.xxx.xxx.249

crypto map uncrmap 1 set transform-set uncrus_ca

crypto map uncrmap 1 set security-association lifetime seconds 28800 kilobytes 4608000

crypto map uncrmap 2 ipsec-isakmp dynamic uncrdyna

crypto map uncrmap 3 ipsec-isakmp

crypto map uncrmap 3 match address 101

crypto map uncrmap 3 set peer 204.xxx.xx8.249

crypto map uncrmap 3 set transform-set uncrus_ihs

crypto map uncrmap 3 set security-association lifetime seconds 3600 kilobytes 4608000

crypto map uncrmap interface outside

isakmp enable outside

isakmp key ******** address 75.xxx.xxx.249 netmask 255.255.255.255 no-xauth

isakmp key ******** address 204.xxx.xx8.249 netmask 255.255.255.255

isakmp identity address

isakmp nat-traversal 20

isakmp policy 10 authentication pre-share

isakmp policy 10 encryption 3des

isakmp policy 10 hash md5

isakmp policy 10 group 2

isakmp policy 10 lifetime 86400

isakmp policy 20 authentication pre-share

isakmp policy 20 encryption 3des

isakmp policy 20 hash md5

isakmp policy 20 group 1

isakmp policy 20 lifetime 86400

isakmp policy 30 authentication pre-share

isakmp policy 30 encryption 3des

isakmp policy 30 hash md5

isakmp policy 30 group 2

isakmp policy 30 lifetime 3600

vpngroup test8-2312 address-pool uncrpool

vpngroup test8-2312 dns-server 192.168.73.2 208.180.42.100

vpngroup test8-2312 wins-server 192.168.73.2

vpngroup test8-2312 i58-Bn31 split-tunnel split

vpngroup test8-2312 idle-time 3600

vpngroup test8-2312 password ********

ssh 192.168.73.0 255.255.255.0 inside

ssh timeout 15

management-access inside

console timeout 0

terminal width 80

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Question by:aiscom
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Expert Comment

by:MikeKane
Comment Utility
What version PIX code are you running?  

Are you licensed for more than 1 peer?  

Make sure the nonat on the far side of VPN matches exactly the nonat on this unit.  

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Author Comment

by:aiscom
Comment Utility
The Pix is running 6.3.5.  
If you mean IKE peers, that is showing we are licensed for 10.
The ASA on the other side is using something like this, but I dont know how to implement this on the Pix since I am going to have multiple tunnels.

nat (inside) 0 access-list 101

Can this command be entered multiple times for different access lists?
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Author Comment

by:aiscom
Comment Utility
Friendly bump.  :)
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Expert Comment

by:MikeKane
Comment Utility
When I use a nat 0 for multiple tunnels, I've always just added the source and dest to the same nat0 acl.   I don't think you can have multiple Nat 0 on the same interface since it would probably mess with how the ACLs are processed, which ACL would be applied 1st, etc...  

BTW, having a non-private range as the destination of a VPN tunnel makes no difference.   Your firewall doesn't care, it will match the destination to the ACL and nonat it, or catch it in the crypto match....  

Everything looks ok to me.  Any chance we can see the code or some logs on the far end of this tunnel
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aiscom earned 0 total points
Comment Utility
We were able to get this working.  I had the config on the ASA rebuilt and the tunnel then came up.  Thanks for the help!
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