Help with pix 501 client to site setup..

Answered Question
Jul 1st, 2010

Hello everyone, i'm trying to setup a client to site vpn and after a few days

i'm at wit's end.

I'd appreciate ANY help or tip here.

I tried to set up the config via CLI and PDM, all to no avail.

Although the VPN client log suggests invalid password, I'm positive that the groupname password is correct.

I'm using Cisco VPN Client v. 5.0.07.0290

-----------------------------------------------------------------

Here is sh ver from the PIX:

Cisco PIX Firewall Version 6.3(5)
Cisco PIX Device Manager Version 3.0(4)

-----------------------------------------------------------------

Here is my sh run w/ passwords removed:

pixfirewall# sh run
: Saved
:
PIX Version 6.3(5)
interface ethernet0 10baset
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password something encrypted
passwd something encrypted
hostname pixfirewall
domain-name ciscopix.com
fixup protocol dns maximum-length 512
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
fixup protocol ils 389
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol tftp 69
names
access-list ping_acl permit icmp any any
access-list inside_outbound_nat0_acl permit ip 192.168.1.0 255.255.255.0 192.168
.50.48 255.255.255.248
access-list outside_cryptomap_dyn_20 permit ip any 192.168.50.48 255.255.255.248

pager lines 24
mtu outside 1500
mtu inside 1500
ip address outside pppoe setroute
ip address inside 192.168.1.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool vpnpool 192.168.50.50-192.168.50.55
pdm history enable
arp timeout 14400
global (outside) 10 interface
nat (inside) 0 access-list inside_outbound_nat0_acl
nat (inside) 10 0.0.0.0 0.0.0.0 0 0
access-group ping_acl in interface outside
timeout xlate 3:00:00
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
http server enable
http 192.168.1.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto dynamic-map outside_dyn_map 20 match address outside_cryptomap_dyn_20
crypto dynamic-map outside_dyn_map 20 set transform-set ESP-3DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map
crypto map outside_map interface outside
isakmp enable outside
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 vpnaccessgroup address-pool vpnpool
vpngroup vpnaccessgroup dns-server 192.168.1.1 192.168.1.11
vpngroup vpnaccessgroup wins-server 192.168.1.1
vpngroup vpnaccessgroup default-domain local.com
vpngroup vpnaccessgroup idle-time 1800
vpngroup vpnaccessgroup password something
telnet 192.168.1.0 255.255.255.0 inside
telnet timeout 60
ssh 192.168.1.0 255.255.255.0 inside
ssh timeout 5
console timeout 0
vpdn group pppoe_group request dialout pppoe
vpdn group pppoe_group localname someone
vpdn group pppoe_group ppp authentication pap
vpdn username someone password something
dhcpd address 192.168.1.100-192.168.1.110 inside
dhcpd dns 206.248.154.22 206.248.154.170
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd auto_config outside
dhcpd enable inside
terminal width 80
Cryptochecksum:307fab2d0e3c5a82cebf9c76b9d7952a
: end

-----------------------------------------------------------------------------------------------

here is the log from pix when trying to connect with cisco vpn client w/ real IPs removed:

crypto_isakmp_process_block:src:[cisco vpn client IP here], dest:[cisco PIX IP here] spt:64897 dpt:
500
OAK_AG exchange
ISAKMP (0): processing SA payload. message ID = 0

ISAKMP (0): Checking ISAKMP transform 1 against priority 20 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash SHA
ISAKMP:      default group 2
ISAKMP:      extended auth pre-share (init)
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 256
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 2 against priority 20 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash MD5
ISAKMP:      default group 2
ISAKMP:      extended auth pre-share (init)
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 256
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 3 against priority 20 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash SHA
ISAKMP:      default group 2
ISAKMP:      auth pre-share
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 256
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 4 against priority 20 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash MD5
ISAKMP:      default group 2
ISAKMP:      auth pre-share
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 256
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 5 against priority 20 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash SHA
ISAKMP:      default group 2
ISAKMP:      extended auth pre-share (init)
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 128
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 6 against priority 20 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash MD5
ISAKMP:      default group 2
ISAKMP:      extended auth pre-share (init)
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 128
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 7 against priority 20 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash SHA
ISAKMP:      default group 2
ISAKMP:      auth pre-share
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 128
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 8 against priority 20 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash MD5
ISAKMP:      default group 2
ISAKMP:      auth pre-share
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 128
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 9 against priority 20 policy
ISAKMP:      encryption 3DES-CBC
ISAKMP:      hash SHA
ISAKMP:      default group 2
ISAKMP:      extended auth pre-share (init)
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP (0): atts are not acceptable.
crypto_isakmp_process_block:src:src:[cisco vpn client IP here], dest:[cisco pix IP here] spt:64897 dpt:
500
ISAKMP: error, msg not encrypted
crypto_isakmp_process_block:src:[cisco vpn client IP here], dest:[cisco pix IP here] spt:64897 dpt:
500
ISAKMP: error, msg not encrypted
pixfirewall#

---------------------------------------------------------------------------------------------------------------

here is the log from vpn client:

363    16:07:58.953  07/01/10  Sev=Info/4 CM/0x63100002
Begin connection process

364    16:07:58.953  07/01/10  Sev=Info/4 CM/0x63100004
Establish secure connection

365    16:07:58.953  07/01/10  Sev=Info/4 CM/0x63100024
Attempt connection with server "[cisco pix IP here]"

366    16:07:58.953  07/01/10  Sev=Info/4 IKE/0x63000001
Starting IKE Phase 1 Negotiation

367    16:07:58.969  07/01/10  Sev=Info/4 IKE/0x63000013
SENDING >>> ISAKMP OAK AG (SA, KE, NON, ID, VID(Xauth), VID(dpd), VID(Frag), VID(Nat-T), VID(Unity)) to [cisco pix IP here]

368    16:07:59.078  07/01/10  Sev=Info/4 IPSEC/0x63700008
IPSec driver successfully started

369    16:07:59.078  07/01/10  Sev=Info/4 IPSEC/0x63700014
Deleted all keys

370    16:08:00.110  07/01/10  Sev=Info/4 IKE/0x63000014
RECEIVING <<< ISAKMP OAK AG (SA, VID(Xauth), VID(dpd), VID(Unity), VID(?), KE, ID, NON, HASH) from [cisco pix IP here]

371    16:08:00.110  07/01/10  Sev=Warning/3 IKE/0xE3000057
The received HASH payload cannot be verified

372    16:08:00.110  07/01/10  Sev=Warning/2 IKE/0xE300007E
Hash verification failed... may be configured with invalid group password.

373    16:08:00.110  07/01/10  Sev=Warning/2 IKE/0xE300009B
Failed to authenticate peer (Navigator:915)

374    16:08:00.110  07/01/10  Sev=Info/4 IKE/0x63000013
SENDING >>> ISAKMP OAK INFO (NOTIFY:INVALID_HASH_INFO) to [cisco pix IP here]

375    16:08:00.110  07/01/10  Sev=Info/4 IKE/0x63000013
SENDING >>> ISAKMP OAK INFO (NOTIFY:AUTH_FAILED) to [cisco pix IP here]

376    16:08:00.110  07/01/10  Sev=Warning/2 IKE/0xE30000A7
Unexpected SW error occurred while processing Aggressive Mode negotiator:(Navigator:2263)

377    16:08:00.110  07/01/10  Sev=Info/4 IKE/0x63000017
Marking IKE SA for deletion  (I_Cookie=A152D516B07D9659 R_Cookie=5F4B55C38C0A40F4) reason = DEL_REASON_IKE_NEG_FAILED

378    16:08:01.078  07/01/10  Sev=Info/4 IKE/0x6300004B
Discarding IKE SA negotiation (I_Cookie=A152D516B07D9659 R_Cookie=5F4B55C38C0A40F4) reason = DEL_REASON_IKE_NEG_FAILED

379    16:08:01.078  07/01/10  Sev=Info/4 CM/0x63100014
Unable to establish Phase 1 SA with server "[cisco pix IP here]" because of "DEL_REASON_IKE_NEG_FAILED"

380    16:08:01.078  07/01/10  Sev=Info/4 IKE/0x63000001
IKE received signal to terminate VPN connection

381    16:08:01.078  07/01/10  Sev=Info/4 IPSEC/0x63700014
Deleted all keys

382    16:08:01.078  07/01/10  Sev=Info/4 IPSEC/0x63700014
Deleted all keys

383    16:08:01.078  07/01/10  Sev=Info/4 IPSEC/0x63700014
Deleted all keys

384    16:08:01.078  07/01/10  Sev=Info/4 IPSEC/0x6370000A
IPSec driver successfully stopped

I have this problem too.
0 votes
Correct Answer by Jennifer Halim about 6 years 5 months ago

Mmmm.. what version of vpn client are you using?

If you are using the latest one, looks like you might have to downgrade it to an older version as your PIX version is pretty old.

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Overall Rating: 5 (1 ratings)
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Jennifer Halim Thu, 07/01/2010 - 16:02

As per the debug outputs, the ISAKMP proposal is not accepted by the PIX firewall.

I would suggest that you try to add a few more ISAKMP policies as follows:

isakmp policy 10 authentication pre-share
isakmp policy 10 encryption  3des
isakmp policy 10 hash sha
isakmp policy 10 group 2
isakmp  policy 10 lifetime 86400

isakmp policy 30 authentication pre-share
isakmp policy 30 encryption des
isakmp policy 30 hash md5
isakmp policy 30 group 2
isakmp  policy 30 lifetime 86400

isakmp policy 40 authentication pre-share
isakmp policy 40 encryption des
isakmp policy 40 hash sha
isakmp policy 40 group 1
isakmp  policy 40 lifetime 86400

Hope that helps. If it's still failing above the above configuration, please run the debug output again, and share it on post. Thanks.

pavolkarkas Thu, 07/01/2010 - 17:22

Thanks for giving it a shot halijenn! It still doesn't connect however.

Below is the debug output from the pix

pixfirewall#
crypto_isakmp_process_block:src:[cisco vpn client IP here], dest:[cisco PIX IP here] spt:60789 dpt:
500
OAK_AG exchange
ISAKMP (0): processing SA payload. message ID = 0

ISAKMP (0): Checking ISAKMP transform 1 against priority 10 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash SHA
ISAKMP:      default group 2
ISAKMP:      extended auth pre-share (init)
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 256
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 2 against priority 10 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash MD5
ISAKMP:      default group 2
ISAKMP:      extended auth pre-share (init)
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 256
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 3 against priority 10 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash SHA
ISAKMP:      default group 2
ISAKMP:      auth pre-share
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 256
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 4 against priority 10 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash MD5
ISAKMP:      default group 2
ISAKMP:      auth pre-share
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 256
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 5 against priority 10 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash SHA
ISAKMP:      default group 2
ISAKMP:      extended auth pre-share (init)
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 128
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 6 against priority 10 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash MD5
ISAKMP:      default group 2
ISAKMP:      extended auth pre-share (init)
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 128
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 7 against priority 10 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash SHA
ISAKMP:      default group 2
ISAKMP:      auth pre-share
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 128
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 8 against priority 10 policy
ISAKMP:      encryption AES-CBC
ISAKMP:      hash MD5
ISAKMP:      default group 2
ISAKMP:      auth pre-share
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP:      keylength of 128
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 9 against priority 10 policy
ISAKMP:      encryption 3DES-CBC
ISAKMP:      hash SHA
ISAKMP:      default group 2
ISAKMP:      extended auth pre-share (init)
ISAKMP:      life type in seconds
ISAKMP:      life duration (VPI) of  0x0 0x20 0xc4 0x9b
ISAKMP (0): atts are not acceptable.
crypto_isakmp_process_block:src:[cisco vpn client IP here], dest:[cisco PIX IP here] spt:60789 dpt:
500
ISAKMP: error, msg not encrypted
crypto_isakmp_process_block:src:[cisco vpn client IP here], dest:[cisco PIX IP here] spt:60789 dpt:
500
ISAKMP: error, msg not encrypted

-------------------------------------------------------------------

and from the client:

407    20:11:10.722  07/01/10  Sev=Info/4 CM/0x63100002
Begin connection process

408    20:11:10.737  07/01/10  Sev=Info/4 CM/0x63100004
Establish secure connection

409    20:11:10.737  07/01/10  Sev=Info/4 CM/0x63100024
Attempt connection with server "[cisco PIX IP here]"

410    20:11:10.753  07/01/10  Sev=Info/4 IKE/0x63000001
Starting IKE Phase 1 Negotiation

411    20:11:10.753  07/01/10  Sev=Info/4 IKE/0x63000013
SENDING >>> ISAKMP OAK AG (SA, KE, NON, ID, VID(Xauth), VID(dpd), VID(Frag), VID(Nat-T), VID(Unity)) to [cisco PIX IP here]

412    20:11:11.144  07/01/10  Sev=Info/4 IPSEC/0x63700008
IPSec driver successfully started

413    20:11:11.144  07/01/10  Sev=Info/4 IPSEC/0x63700014
Deleted all keys

414    20:11:11.894  07/01/10  Sev=Info/4 IKE/0x63000014
RECEIVING <<< ISAKMP OAK AG (SA, VID(Xauth), VID(dpd), VID(Unity), VID(?), KE, ID, NON, HASH) from [cisco PIX IP here]

415    20:11:11.894  07/01/10  Sev=Warning/3 IKE/0xE3000057
The received HASH payload cannot be verified

416    20:11:11.894  07/01/10  Sev=Warning/2 IKE/0xE300007E
Hash verification failed... may be configured with invalid group password.

417    20:11:11.894  07/01/10  Sev=Warning/2 IKE/0xE300009B
Failed to authenticate peer (Navigator:915)

418    20:11:11.894  07/01/10  Sev=Info/4 IKE/0x63000013
SENDING >>> ISAKMP OAK INFO (NOTIFY:INVALID_HASH_INFO) to [cisco PIX IP here]

419    20:11:11.894  07/01/10  Sev=Info/4 IKE/0x63000013
SENDING >>> ISAKMP OAK INFO (NOTIFY:AUTH_FAILED) to [cisco PIX IP here]

420    20:11:11.894  07/01/10  Sev=Warning/2 IKE/0xE30000A7
Unexpected SW error occurred while processing Aggressive Mode negotiator:(Navigator:2263)

421    20:11:11.894  07/01/10  Sev=Info/4 IKE/0x63000017
Marking IKE SA for deletion  (I_Cookie=0ABB8F954B7B4243 R_Cookie=5F4B55C3524A4F1E) reason = DEL_REASON_IKE_NEG_FAILED

422    20:11:12.644  07/01/10  Sev=Info/4 IKE/0x6300004B
Discarding IKE SA negotiation (I_Cookie=0ABB8F954B7B4243 R_Cookie=5F4B55C3524A4F1E) reason = DEL_REASON_IKE_NEG_FAILED

423    20:11:12.644  07/01/10  Sev=Info/4 CM/0x63100014
Unable to establish Phase 1 SA with server "[cisco PIX IP here]" because of "DEL_REASON_IKE_NEG_FAILED"

424    20:11:12.644  07/01/10  Sev=Info/4 IKE/0x63000001
IKE received signal to terminate VPN connection

425    20:11:12.644  07/01/10  Sev=Info/4 IPSEC/0x63700014
Deleted all keys

426    20:11:12.644  07/01/10  Sev=Info/4 IPSEC/0x63700014
Deleted all keys

427    20:11:12.644  07/01/10  Sev=Info/4 IPSEC/0x63700014
Deleted all keys

428    20:11:12.644  07/01/10  Sev=Info/4 IPSEC/0x6370000A
IPSec driver successfully stopped

Correct Answer
Jennifer Halim Thu, 07/01/2010 - 17:30

Mmmm.. what version of vpn client are you using?

If you are using the latest one, looks like you might have to downgrade it to an older version as your PIX version is pretty old.

pavolkarkas Thu, 07/01/2010 - 18:19

thnx halijen!

downgraded to version 5.0.02.009 and that did the trick!

vpn working, thanks for your help!

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