04-15-2011 11:53 AM
I have two PIX 501 devices with virtually the same configuration (except with different outisde and inside IP addresses, VPN pool IPs, etc). I can get to the outside on both from within the inside network. I have VPN connectivity set up on both. However, I can only access the VPN through one of the devices. I compared the configuration on the working PIX to the one on the non-working one but cannot see what the issue can be. I also cannot ping the outside interface on the problem pix, which I think may the cause of the issue since when I try to connect to the VPN it gives an error indicating that the PPTP-VPN server is not responding. I have PAT set up on both for the outside interface and that works fine. The config of the problem PIX is below. Any help is greatly appreciated.
Building configuration...
: Saved
:
PIX Version 6.3(3)
interface ethernet0 auto
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password tdkuTUSh53d2MT6B encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname attdslpix2
domain-name mycompany.com
clock timezone EST -5
clock summer-time EDT recurring
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 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 inside_outbound_nat0_acl permit ip any 172.26.0.192 255.255.255.248
access-list outside_access_in permit udp any any eq 4500
access-list outside_access_in permit udp any any eq isakmp
access-list outside_access_in permit icmp any any
access-list splittunnel permit ip 172.26.0.0 255.255.0.0 172.26.0.0 255.255.0.0
access-list TLC_splitTunnelAcl permit ip 172.26.0.0 255.255.0.0 any
pager lines 24
logging on
logging standby
mtu outside 1500
mtu inside 1500
ip address outside 70.xxx.xx.158 255.255.255.248
ip address inside 172.26.0.249 255.255.0.0
ip audit info action alarm
ip audit attack action alarm
ip local pool pptp-client-ip 172.26.5.195-172.26.5.199
pdm location 172.26.5.192 255.255.255.248 outside
pdm location 172.26.0.192 255.255.255.248 outside
pdm logging alerts 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
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 70.xxx.xx.153 1
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 uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server RADIUS protocol radius
aaa-server LOCAL protocol local
http server enable
http 172.26.0.0 255.255.0.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
tftp-server inside 172.26.0.54 /pix549
floodguard enable
sysopt connection permit-pptp
sysopt connection permit-l2tp
crypto ipsec transform-set TRANS_ESP_3DES_MD5 esp-3des esp-md5-hmac
crypto ipsec transform-set TRANS_ESP_3DES_MD5 mode transport
crypto dynamic-map outside_dyn_map 20 set transform-set TRANS_ESP_3DES_MD5
crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map
crypto map outside_map interface outside
isakmp enable outside
isakmp key ******** address 0.0.0.0 netmask 0.0.0.0
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
vpngroup TLC address-pool pptp-client-ip
vpngroup TLC dns-server 172.26.0.250 172.26.0.251
vpngroup TLC wins-server 172.26.0.250 172.26.0.251
vpngroup TLC split-tunnel splittunnel
vpngroup TLC idle-time 1800
vpngroup TLC password ********
telnet 172.26.0.0 255.255.0.0 inside
telnet 0.0.0.0 0.0.0.0 inside
telnet timeout 5
ssh timeout 5
management-access inside
console timeout 0
vpdn group PPTP-VPDN-GROUP accept dialin pptp
vpdn group PPTP-VPDN-GROUP ppp authentication chap
vpdn group PPTP-VPDN-GROUP ppp authentication mschap
vpdn group PPTP-VPDN-GROUP ppp encryption mppe auto required
vpdn group PPTP-VPDN-GROUP client configuration address local pptp-client-ip
vpdn group PPTP-VPDN-GROUP client configuration dns 172.26.0.250 172.26.0.251
vpdn group PPTP-VPDN-GROUP pptp echo 60
vpdn group PPTP-VPDN-GROUP client authentication local
vpdn username bjulien password *********
vpdn enable outside
vpdn enable inside
dhcpd address 172.26.5.100-172.26.5.130 inside
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd auto_config outside
dhcpd enable inside
terminal width 80
Cryptochecksum:696e36174e523ef7b16b20cd9532d111
: end
[OK]
04-16-2011 10:38 AM
Hi,
What kind of VPN tunnel are you trying to connect?
Also you have mentioned "I also cannot ping the outside interface on the problem pix, which I think may the cause of the issue since when I try to connect to the VPN it gives an error indicating that the PPTP-VPN server is not responding"
Form where are you trying to ping the outside interface?
Also please paste the exact error message that you receive along with the working PIX config.
Regards,
Anisha
P.S.: please mark this thread as answered if you feel your query is resolved. Do rate helpful posts.
04-17-2011 07:43 AM
It's a PPTP vpn tunnel.
I get no response when I ping the IP of the outside interface from home or anywhere outside of the physical office location. I can ping the IP address of the outside interface of the working PIX successfully.
The error message I get is:
"The PPTP-VPN server did not respond. Please contact your systems administrator. Try reconnecting. If the problem continues, verify your settings and contact your Administator."
Here is the config of the working PIX:
Building configuration...
: Saved
:
PIX Version 6.3(5)
interface ethernet0 auto
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password tdkuTUSh53d2MT6B encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname dslpix
domain-name mycompany.com
clock timezone EST -5
clock summer-time EDT recurring
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 rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
no fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol tftp 69
no names
name 172.26.0.238 tlc042
name 172.26.0.250 tlc001
name 172.26.0.251 tlc002
name 172.26.0.41 lkm-srv-dcs-01
name 172.26.5.20 TLCXCH01
name 172.26.0.11 TLCXCH01_Web_Mail
access-list outside_access_in permit tcp any host 172.26.0.11 eq imap4
access-list outside_access_in permit tcp any host 68.xxx.xxx.10 eq ssh
access-list outside_access_in permit tcp any host 172.26.0.11 eq www
access-list outside_access_in permit tcp any host 172.26.0.11 eq smtp
access-list outside_access_in permit udp any any eq 4500
access-list outside_access_in permit udp any any eq isakmp
access-list outside_access_in permit icmp any any
access-list inside_outbound_nat0_acl permit ip any 172.26.0.192 255.255.255.248
access-list splittunnel permit ip 172.26.0.0 255.255.0.0 172.26.0.0 255.255.0.0
access-list TLC_splitTunnelAcl permit ip 172.26.0.0 255.255.0.0 any
pager lines 24
logging on
mtu outside 1500
mtu inside 1500
ip address outside 68.xxx.xxx.14 255.255.255.248
ip address inside 172.26.0.253 255.255.0.0
ip audit info action alarm
ip audit attack action alarm
ip local pool pptp-client-ip 172.26.0.195-172.26.0.199
pdm location 172.26.0.238 255.255.255.255 inside
pdm location 172.26.0.250 255.255.255.255 inside
pdm location 172.26.0.251 255.255.255.255 inside
pdm location 172.26.0.41 255.255.255.255 inside
pdm location 192.168.5.0 255.255.255.0 inside
pdm location 172.26.0.192 255.255.255.248 outside
pdm location 172.26.5.20 255.255.255.255 inside
pdm location 172.26.0.11 255.255.255.255 inside
pdm location 172.26.0.54 255.255.255.255 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
static (inside,outside) 68.xxx.xxx.12 172.26.0.251 netmask 255.255.255.255 0 0
static (inside,outside) 68.xxx.xxx.10 172.26.0.250 netmask 255.255.255.255 0 0
static (inside,outside) 172.26.5.20 172.26.5.20 netmask 255.255.255.255 0 0
static (inside,outside) 172.26.0.11 172.26.0.11 netmask 255.255.255.255 0 0
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 68.xxx.xxx.9 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
http server enable
http 172.26.0.0 255.255.0.0 inside
no snmp-server location
no snmp-server contact
snmp-server community my-public
no snmp-server enable traps
floodguard enable
sysopt connection permit-pptp
sysopt connection permit-l2tp
crypto ipsec transform-set TRANS_ESP_3DES_MD5 esp-3des esp-md5-hmac
crypto ipsec transform-set TRANS_ESP_3DES_MD5 mode transport
crypto dynamic-map outside_dyn_map 20 set transform-set TRANS_ESP_3DES_MD5
crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map
crypto map outside_map interface outside
isakmp enable outside
isakmp key ******** address 0.0.0.0 netmask 0.0.0.0
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 TLC address-pool pptp-client-ip
vpngroup TLC dns-server 172.26.0.250 172.26.0.251
vpngroup TLC wins-server 172.26.0.250 172.26.0.251
vpngroup TLC default-domain TLCUSA.mycompany.com
vpngroup TLC split-tunnel splittunnel
vpngroup TLC idle-time 1800
vpngroup TLC password ********
telnet 172.26.0.0 255.255.0.0 inside
telnet 0.0.0.0 0.0.0.0 inside
telnet timeout 5
ssh timeout 5
management-access inside
console timeout 0
vpdn group PPTP-VPDN-GROUP accept dialin pptp
vpdn group PPTP-VPDN-GROUP ppp authentication chap
vpdn group PPTP-VPDN-GROUP ppp authentication mschap
vpdn group PPTP-VPDN-GROUP ppp encryption mppe auto required
vpdn group PPTP-VPDN-GROUP client configuration address local pptp-client-ip
vpdn group PPTP-VPDN-GROUP client configuration dns 172.26.0.250 172.26.0.251
vpdn group PPTP-VPDN-GROUP pptp echo 60
vpdn group PPTP-VPDN-GROUP client authentication local
vpdn username yyyyy password *********
vpdn enable outside
vpdn enable inside
dhcpd address 172.26.0.254-172.26.1.29 inside
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd auto_config outside
username xxxx password eNFScgcUsDOLFsBQ encrypted privilege 2
username zzzzz password HKVV2E67LcaGEJHY encrypted privilege 2
terminal width 80
Cryptochecksum:455e098afea58a4aa09d4c05896e7924
: end
[OK]
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