PIX 501Site-2-Site VPN help.

[ensorg]

Hi All,


Hopefully somebody will be able to help me out. I have two Cisco PIX 501s and I am attempting to create a site to site VPN between them. The problem is that I appear to be unable to contact the server on the "other side" of the VPN. I have created a simple network diagram below.
From the 192.84.7.90 PC I attempt to contact the 192.168.254.10 server. The VPN light on the PIX appears but I get an error message saying that the network path cannot be found.
Hopefully somebody will be able to point me in the right direction, regarding where I am going wrong, or will be able to give me trouble shooting advice. Many Thanks.


PC 192.84.7.90
|
BangorPIX Inside 192.84.7.99
|
BangorPIX Outside ***.*.198.138
|
Internet
|
WelshPIX Outside 194.73.102.208
|
WelshPIX Inside 192.168.254.1
|
Server 192.168.254.199

I have attached the configs from both PIXs below.

BangorPIX
nameif ethernet0 outside security0
nameif ethernet1 inside security100
hostname tmaxbangor
domain-name ciscopix.com
fixup protocol ftp 21
fixup protocol http 80
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol ils 389
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
access-list inside_outbound_nat0_acl permit ip 192.84.7.0 255.255.255.0 192.168.254.0 255.255.255.0
access-list outside_cryptomap_20 permit ip 192.84.7.0 255.255.255.0 192.168.254.0 255.255.255.0
pager lines 24
logging on
logging buffered debugging
interface ethernet0 10baset
interface ethernet1 10full
mtu outside 1500
mtu inside 1500
ip address outside ***.*.198.138 255.255.255.248
ip address inside 192.84.7.99 255.255.255.0
ip verify reverse-path interface outside
ip verify reverse-path interface inside
ip audit info action alarm drop reset
ip audit attack action alarm drop reset
pdm location 192.84.7.111 255.255.255.255 inside
pdm logging informational 100
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list inside_outbound_nat0_acl
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
route outside 0.0.0.0 0.0.0.0 ***.*.198.137 1
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
aaa-server LOCAL protocol local
http server enable
http 192.84.7.111 255.255.255.255 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
no sysopt route dnat
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto map outside_map 20 ipsec-isakmp
crypto map outside_map 20 match address outside_cryptomap_20
crypto map outside_map 20 set peer ***.**.102.209
crypto map outside_map 20 set transform-set ESP-3DES-SHA
crypto map outside_map interface outside
isakmp enable outside
isakmp key **************** address ***.***.102.209 netmask 255.255.255.255 no-xauth no-config-mode
isakmp policy 20 authentication pre-share
isakmp policy 20 encryption 3des
isakmp policy 20 hash sha
isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
telnet 192.84.1.0 255.255.255.0 inside
telnet timeout 50
ssh timeout 5
terminal width 80

Welsh PIX
nameif ethernet0 outside security0
nameif ethernet1 inside security100
hostname TMAXWALES
domain-name ciscopix.com
fixup protocol ftp 21
fixup protocol http 80
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol ils 389
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
access-list inside_outbound_nat0_acl permit ip 192.168.254.0 255.255.255.0 192.84.7.0 255.255.255.0
access-list outside_cryptomap_20 permit ip 192.168.254.0 255.255.255.0 192.84.7.0 255.255.255.0
pager lines 24
logging trap debugging
logging host inside 192.168.254.10
interface ethernet0 10baset
interface ethernet1 10full
mtu outside 1500
mtu inside 1500
ip address outside ***.**.102.209 255.255.255.248
ip address inside 192.168.254.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
pdm location 192.168.254.10 255.255.255.255 inside
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list inside_outbound_nat0_acl
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
route outside 0.0.0.0 0.0.0.0 ***.**.102.208
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
aaa-server LOCAL protocol local
http server enable
http 192.168.254.10 255.255.255.255 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
no sysopt route dnat
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto map outside_map 20 ipsec-isakmp
crypto map outside_map 20 match address outside_cryptomap_20
crypto map outside_map 20 set peer ***.*.198.138
crypto map outside_map 20 set transform-set ESP-3DES-SHA
crypto map outside_map interface outside
isakmp enable outside
isakmp key ***************************** address ***.**.198.138 netmask 255.255.255.255 no-xauth no-config-mode
isakmp policy 20 authentication pre-share
isakmp policy 20 encryption 3des
isakmp policy 20 hash sha
isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
telnet timeout 5
ssh timeout 5
terminal width 80

 

[br0ck]

First off

>WelshPIX Outside 194.73.102.208
are you doing NATing in two placeses? (router & PIX)

i don't thing the VPN will pass over NAT at your head-end router

disable NATing at the head-end router and allow the pix to do that work
the put side interface of the pix needs to be a public ip

2nd
>logging trap debugging

turn this down to 5 or 6
I have had problems if the logging is jacked up clogging traffic
with logging at 6 you will get enough info about the VPN with out seeing everything the pix is doing
also do show commands to get more info on the vpn processes

sh crypto sa etc...
look up the config on cisco.com and there are show commands for vpn's at the end of the documents for troubleshooting this

i will assume that you can ping each other (pix 2 pix)
if not add
access-l 101 permit icmp any any
access-g 101 in interface outside
to both PIX and it will respond to pings on the outside

this can be removed after testing is don if nessary


Good luck

 

[sunyasee]

Try using the command 'show crypto isakmp sa' to check whether the tunnel is being established between both PIX.

You should see something like...

Total : 1
Embryonic : 0
dst src state pending created
***.**.102.209 ***.*.198.138 QM_IDLE 0 1

If this is the case try doing pings from both ends to see where the connection is broken, it might be the server is configured with the incorrect gateway.




----

Sunyasee