10-19-2010 08:37 AM
HI,
I have a pix firewall 501 with ios ver 6.3 and 3.0(4) pdm installed. I tried creating a remote access vpn through pdm vpn wizard. I could successfully connect to the firewall but none of my internal components can be accessed through the vpn. Also the pdm does show my vpn to be up and working. There is also one more thing. The firewall was only meant to act as a vpn terminator. No filtering was to be done and hence I created an access-list and applied it to both interfaces.
access-list outin permit ip any any
access-group outin in interface outside
access-group outin in interface inside
if both interfaces were configured to pass all traffic from both interface why can ppl from the vpn access any part of my network. Here is my pix configuration and sh ver output
sh run
: Saved
:
PIX Version 6.3(5)
interface ethernet0 100full
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password 8Ry2YjIyt7RRXU24 encrypted
passwd 28UZ5k5cyiO1vK/z encrypted
hostname punepix
domain-name rstforum.net
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
<--- More --->
names
access-list outin permit ip any any
access-list inside_outbound_nat0_acl permit ip any 192.168.200.0 255.255.255.128
access-list outside_cryptomap_dyn_20 permit ip any 192.168.200.0 255.255.255.128
access-list outin permit ip any any
access-group outin in interface outside
access-group outin in interface inside
pager lines 24
mtu outside 1500
mtu inside 1500
ip address outside 114.143.XX.XX 255.255.255.0
ip address inside 192.168.6.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool RST_VPN_POOL 192.168.200.1-192.168.200.100
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
router ospf 1
network 192.168.6.0 255.255.255.0 area 0
area 0 authentication message-digest
log-adj-changes
route outside 0.0.0.0 0.0.0.0 114.143.29.1 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
<--- More --->
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 0.0.0.0 0.0.0.0 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 client authentication LOCAL
crypto map outside_map interface outside
<--- More --->
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 RST_VPN address-pool RST_VPN_POOL
vpngroup RST_VPN dns-server 4.2.2.2
vpngroup RST_VPN idle-time 1800
vpngroup RST_VPN password ********
telnet 0.0.0.0 0.0.0.0 inside
telnet timeout 5
ssh timeout 5
console timeout 0
username rustom password zEkdgwmwPhkthzSs encrypted privilege 15
username vagish password tGokRW6wigOWAze8 encrypted privilege 15
terminal width 80
Cryptochecksum:05dc87d47eb55dc1b071e1590b16063f
: end
punepix#
punepix# sh ver
Cisco PIX Firewall Version 6.3(5)
Cisco PIX Device Manager Version 3.0(4)
Compiled on Thu 04-Aug-05 21:40 by morlee
punepix up 6 hours 20 mins
Hardware: PIX-501, 16 MB RAM, CPU Am5x86 133 MHz
Flash E28F640J3 @ 0x3000000, 8MB
BIOS Flash E28F640J3 @ 0xfffd8000, 128KB
0: ethernet0: address is 0009.4306.0bc3, irq 9
1: ethernet1: address is 0009.4306.0bc5, irq 10
Licensed Features:
Failover: Disabled
VPN-DES: Enabled
VPN-3DES-AES: Enabled
Maximum Physical Interfaces: 2
Maximum Interfaces: 2
Cut-through Proxy: Enabled
Guards: Enabled
URL-filtering: Enabled
Inside Hosts: Unlimited
please advice as I am not much into security.
Thank you
10-19-2010 10:36 AM
Please turn on NAT-t "isakmp nat-traversal" if your vpn client is behind a NAT device.
10-19-2010 10:16 PM
HI, DID TRY THE FOLLOWING BUT STILL AM FACING THE SAME PROBLEM. THERE IS SOMETHING UNUSUAL GOING ON IN MY NETWORK. I HAVE ATTACHED A NETWORK DIAGRAM SO YOU CAN UNDERSTAND THE SCENARIO. I CAN PING HTE CALL MANAGER IN TEH DIAGRAM. BUT NOT REGISTER ANY PHONES ON IT. I CAN NOT PING ANY OF THE ROUTERS INTERFACES BUT CAN PING A FEW HOSTS ON THE NETWORK. I CAN PING 192.168.5.3 HOST ON A NETWORK BUT CANNOT TELNET THROUGH THE VPN. IF THE ACCESS-LIST SAYS PERMIT IP ANY ANY ON BOTH INTERFACES THEN WHY IS IT NOT ALLOWING ANY TRAFFIC. I HAVE ATTACHED A DIAGRAM WHICH CONTAINS A MAP AND ROUTING TABLE EXAMPLE OF THE SCENAIRO. I HAVE BEEN TRYING THIS OUT SINCE THE LAST WEEK. PLZ DO SUGGEST AS I'M GETTING FRUSTRATED.
THANK YOU
10-20-2010 08:31 AM
Hi,
Are you able to ping the router's 192.168.6.2 IP address?
What is the host that has the IP address of 192.168.5.3? Please apply captures on the PIX's inside interface and let's see what is exactly going on over there.
https://supportforums.cisco.com/docs/DOC-1222
Regards,
Prapanch
10-20-2010 09:10 AM
If you can ping the inside IP from VPN client, you VPN should be OK.
As for why you can not telnet to the inside host or IP softphone can not register with Call manager, it might be caused by something else.
I would suggestion you
1) turn on logging buffer on PIX, then try the telnet connection and ip phone registrataion to see if you can see any error in the log.
2) capture 'show crypto ipsec sa" before and after you try the telnet or ip phone registration to see if the decap/encap count incrementing
3) can you telnet to the router's IP successfully from vpn client?
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