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PIX 515 VPN Problem 1

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iiiiss

Technical User
Oct 28, 2002
63
AT
Hi there !

I wondered whether somebody could help me with my problem.

I have a PIX 515E and i can establish VPN connection between 2 PCs. (simple PC--PIX--PC for testing)

After establishing the VPN connection .. I am not able to ping anything behind the firewall. I think I must have overlooked something.

I use the VPN client Version 3.5 * (or maybe 3.6 *)

Here´s my config and the debug message I get when I try to ping the PC behind the PIX .. Thanks for every help !!

PIX Version 6.1(4)

nameif ethernet0 outside security0
nameif ethernet1 inside security100
nameif ethernet2 dmz security50
enable password bJ720n9.K/1QbBt5 encrypted
passwd 4OYLvXDaekNQjFEp encrypted
hostname PIXfirewall
domain-name *************
fixup protocol ftp 21
fixup protocol http 80
fixup protocol h323 1720
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol sip 5060
fixup protocol skinny 2000
names
name ***.***.***.203 client
name 10.1.1.2 host
access-list nonatinside permit ip 10.1.1.0 255.255.255.0 ***.***.***.0 255.255.255.0

access-list nonatdmz permit ip 192.168.1.0 255.255.255.0 ***.***.***.0 255.255.255.0

access-list inside permit ip any any
access-list inside permit icmp any any
access-list inside permit tcp any any
access-list inside permit esp any any
access-list inside permit udp any any
access-list outside permit tcp any any
access-list outside permit ip any any
access-list outside permit icmp any any
access-list outside permit esp any any
access-list outside permit udp any any
access-list localtovpnclient permit ip 10.1.1.0 255.255.255.0 ***.***.***.0 255.255.255.0

access-list localtovpnclient permit ip host ***.***.***.204 any

access-list localtovpnclient permit ip 192.168.1.0 255.255.255.0 ***.***.***.0 255.255.255.0

access-list localtovpnclient permit ip host client any
access-list localtovpnclient permit ip host ***.***.***.204 host 10.1.1.100

pager lines 22
logging on
logging buffered informational
interface ethernet0 auto
interface ethernet1 auto
interface ethernet2 auto
icmp permit any outside
icmp permit any inside
icmp permit any dmz
mtu outside 1500
mtu inside 1500
mtu dmz 1500
ip address outside ***.***.***.204 255.255.255.248
ip address inside 10.1.1.1 255.255.255.0
ip address dmz 192.168.1.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool ippool 10.1.1.100-10.1.1.250
pdm history enable
arp timeout 14400
global (outside) 2 ***.***.***.206-***.***.***.207 netmask 255.255.255.248

global (outside) 1 ***.***.***.205 netmask 255.255.255.248
nat (inside) 0 access-list nonatinside
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
nat (dmz) 0 access-list nonatdmz
nat (dmz) 2 0.0.0.0 0.0.0.0 0 0
static (dmz,outside) ***.***.***.207 192.168.1.2 netmask 255.255.255.255 0 0

static (dmz,outside) ***.***.***.206 192.168.1.3 netmask 255.255.255.255 0 0

static (inside,dmz) 192.168.1.1 10.1.1.11 netmask 255.255.255.255 0 0

static (inside,outside) ***.***.***.204 10.1.1.1 netmask 255.255.255.255 0 0

access-group outside in interface outside
access-group inside in interface inside
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h323 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server RADIUS protocol radius
http server enable
no snmp-server location
no snmp-server contact
snmp-server community pcs100302
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
no sysopt route dnat
crypto ipsec transform-set mytransform esp-des esp-md5-hmac

crypto dynamic-map mydynmap 10 match address localtovpnclient

crypto dynamic-map mydynmap 10 set peer client host

crypto dynamic-map mydynmap 10 set transform-set mytransform

crypto map mymap 100 ipsec-isakmp dynamic mydynmap
crypto map mymap interface outside
isakmp enable outside
isakmp key ******** address client netmask 255.255.255.248
isakmp policy 10 authentication pre-share
isakmp policy 10 encryption des
isakmp policy 10 hash md5
isakmp policy 10 group 2
isakmp policy 10 lifetime 86400
vpngroup VPNGruppe address-pool ippool
vpngroup VPNGruppe idle-time 1800
vpngroup VPNGruppe password ********
telnet timeout 5
ssh timeout 5
terminal width 80

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

crypto_isakmp_process_block: src client, dest ***.***.***.204

OAK_QM exchange
oakley_process_quick_mode:
OAK_QM_IDLE
ISAKMP (0): processing SA payload. message ID = 208914763

ISAKMP : Checking IPSec proposal 1

ISAKMP: unknown ESP transform!
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-MD5
ISAKMP: encaps is 1
ISAKMP: key length is 256
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b IPSEC(validate_proposal): transform proposal (prot 3, trans 12, hmac_alg 1) not supported

ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP (0): skipping next ANDed proposal (1)
ISAKMP : Checking IPSec proposal 2

ISAKMP: unknown ESP transform!
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-SHA
ISAKMP: encaps is 1
ISAKMP: key length is 256
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b IPSEC(validate_proposal): transform proposal (prot 3, trans 12, hmac_alg 2) not supported

ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP (0): skipping next ANDed proposal (2)
ISAKMP : Checking IPSec proposal 3

ISAKMP: unknown ESP transform!
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-MD5
ISAKMP: encaps is 1
ISAKMP: key length is 128
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b IPSEC(validate_proposal): transform proposal (prot 3, trans 12, hmac_alg 1) not supported

ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP (0): skipping next ANDed proposal (3)
ISAKMP : Checking IPSec proposal 4

ISAKMP: unknown ESP transform!
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-SHA
ISAKMP: encaps is 1
ISAKMP: key length is 128
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b IPSEC(validate_proposal): transform proposal (prot 3, trans 12, hmac_alg 2) not supported

ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP (0): skipping next ANDed proposal (4)
ISAKMP : Checking IPSec proposal 5

ISAKMP: unknown ESP transform!
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-MD5
ISAKMP: encaps is 1
ISAKMP: key length is 256
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b IPSEC(validate_proposal): transform proposal (prot 3, trans 12, hmac_alg 1) not supported

ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP : Checking IPSec proposal 6

ISAKMP: unknown ESP transform!
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-SHA
ISAKMP: encaps is 1
ISAKMP: key length is 256
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b IPSEC(validate_proposal): transform proposal (prot 3, trans 12, hmac_alg 2) not supported

ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP : Checking IPSec proposal 7

ISAKMP: unknown ESP transform!
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-MD5
ISAKMP: encaps is 1
ISAKMP: key length is 128
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b IPSEC(validate_proposal): transform proposal (prot 3, trans 12, hmac_alg 1) not supported

ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP : Checking IPSec proposal 8

ISAKMP: unknown ESP transform!
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-SHA
ISAKMP: encaps is 1
ISAKMP: key length is 128
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b IPSEC(validate_proposal): transform proposal (prot 3, trans 12, hmac_alg 2) not supported
 
HI !

I found the problem .. I´ve forgotten to set a "nat (interface) 0 " command... Now I can ping :) !

But if anybody found something thats wrong with my config or something that could cause problems then please tell me ..

Thanks
 
HI !

Thank you very much for this tip but these lines were just for testing purposes.

Bye
 
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