Cannot ping inside the vpn client hosts. It's a NAT problem
Hello everyone, I'm running into what seems to be a cause of exclusion with an IOS IPSEC VPN NAT/nat. I can connect to the VPN with cisco IPSEC VPN client, and I am able to authenticate. Once I have authenticate, I'm not able to reach one of the guests inside. Below is my relevant config. Any help would be greatly appreciated.
AAA new-model
!
!
AAA authentication login default local
radius of group AAA authentication login userauthen
AAA authorization exec default local
AAA authorization groupauthor LAN
crypto ISAKMP policy 3
BA 3des
preshared authentication
Group 2
!
ISAKMP crypto client configuration group businessVPN
key xxxxxx
DNS 192.168.10.2
business.local field
pool vpnpool
ACL 108
Crypto isakmp VPNclient profile
businessVPN group identity match
client authentication list userauthen
ISAKMP authorization list groupauthor
client configuration address respond
!
!
Crypto ipsec transform-set esp-3des esp-sha-hmac RIGHT
!
Crypto-map dynamic dynmap 10
Set transform-set RIGHT
Define VPNclient isakmp-profile
market arriere-route
!
!
10 ipsec-isakmp crypto map clientmap Dynamics dynmap
interface Loopback0
IP 10.1.10.2 255.255.255.252
no ip redirection
no ip unreachable
no ip proxy-arp
IP virtual-reassembly
!
Null0 interface
no ip unreachable
!
interface FastEthernet0/0
IP 111.111.111.138 255.255.255.252
IP access-group outside_in in
no ip redirection
no ip unreachable
no ip proxy-arp
NAT outside IP
inspect the outgoing IP outside
IP virtual-reassembly
automatic duplex
automatic speed
clientmap card crypto
!
the integrated-Service-Engine0/0 interface
description Locator is initialized with default IMAP group
IP unnumbered Loopback0
no ip redirection
no ip unreachable
no ip proxy-arp
IP virtual-reassembly
ip address of service-module 10.1.10.1 255.255.255.252
Service-module ip default gateway - 10.1.10.2
interface BVI1
IP 192.168.10.1 255.255.255.0
no ip redirection
no ip unreachable
no ip proxy-arp
IP nat inside
IP virtual-reassembly
IP nat inside source static tcp 192.168.10.2 25 interface FastEthernet0/0 25
IP nat inside source static tcp 192.168.10.2 443 interface FastEthernet0/0 443
IP nat inside source static tcp 192.168.10.2 3389 interface FastEthernet0/0 3389
IP nat inside source map route nat interface FastEthernet0/0 overload
nat extended IP access list
deny ip 192.168.10.0 0.0.0.255 192.168.109.0 0.0.0.255
refuse the 10.1.1.0 ip 0.0.0.255 192.168.109.0 0.0.0.255
ip licensing 10.1.1.0 0.0.0.255 any
permit ip 192.168.10.0 0.0.0.255 any
sheep extended IP access list
permit ip 192.168.10.0 0.0.0.255 192.168.109.0 0.0.0.255
ip permit 10.1.10.0 0.0.0.255 192.168.109.0 0.0.0.255
ip licensing 10.1.1.0 0.0.0.255 192.168.109.0 0.0.0.255
outside_in extended IP access list
permit tcp object-group Yes_SMTP host 111.111.111.138 eq smtp
permit any any eq 443 tcp
permit tcp 20.20.20.96 0.0.0.31 host 111.111.111.138 eq 3389
permit tcp 20.20.20.96 0.0.0.31 host 111.111.111.138 eq 22
allow any host 111.111.111.138 esp
allow any host 111.111.111.138 eq isakmp udp
allow any host 111.111.111.138 eq non500-isakmp udp
allow any host 111.111.111.138 ahp
allow accord any host 111.111.111.138
access-list 108 allow ip 192.168.109.0 0.0.0.255 192.168.10.0 0.0.0.255
access-list 108 allow ip 192.168.109.0 0.0.0.255 10.1.1.0 0.0.0.255
access-list 108 allow ip 192.168.109.0 0.0.0.255 10.1.10.0 0.0.0.255
!
!
!
!
route nat allowed 10 map
match ip address nat
1 channel ip bridge
In my view, the acl applied to customer is back. It must allow traffic from the internal network to the pool of customers.
To confirm, you can open the Cisco VPN client statistics (after login) then go in the route Details tab. We should see the networks you should be able to reach the customer. Make sure that the good ones are here.
Kind regards
Tags: Cisco Security
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hostname horse
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activate 2KFQnbNIdI.2KYOU encrypted password
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interface GigabitEthernet0/1
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interface GigabitEthernet0/2
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interface GigabitEthernet0/3
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!
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Statistics-list of access threat detection
no statistical threat detection tcp-interception
SSL-trust outside ASDM_TrustPoint6 point
WebVPN
allow outside
CSD image disk0:/csd_3.5.2008-k9.pkg
AnyConnect image disk0:/anyconnect-win-3.1.04066-k9.pkg 1
AnyConnect enable
tunnel-group-list activate
attributes of Group Policy DfltGrpPolicy
Ikev1 VPN-tunnel-Protocol l2tp ipsec without ssl-client
internal VPN_CLIENT_POLICY group policy
VPN_CLIENT_POLICY group policy attributes
WINS server no
value of server DNS 192.168.11.198
VPN - 5 concurrent connections
VPN-session-timeout 480
client ssl-VPN-tunnel-Protocol
Split-tunnel-policy tunnelspecified
value of Split-tunnel-network-list VPN_CLIENT_ACL
myComp.local value by default-field
the address value VPN_CLIENT_POOL pools
WebVPN
activate AnyConnect ssl dtls
AnyConnect Dungeon-Installer installed
AnyConnect ssl keepalive 20
time to generate a new key 30 AnyConnect ssl
AnyConnect ssl generate a new method ssl key
AnyConnect client of dpd-interval 30
dpd-interval gateway AnyConnect 30
AnyConnect dtls lzs compression
AnyConnect modules value vpngina
value of customization DfltCustomization
internal IT_POLICY group policy
IT_POLICY group policy attributes
WINS server no
value of server DNS 192.168.11.198
VPN - connections 3
VPN-session-timeout 120
Protocol-tunnel-VPN-client ssl clientless ssl
Split-tunnel-policy tunnelspecified
value of Split-tunnel-network-list VPN_CLIENT_ACL
field default value societe.com
the address value VPN_CLIENT_POOL pools
WebVPN
activate AnyConnect ssl dtls
AnyConnect Dungeon-Installer installed
AnyConnect ssl keepalive 20
AnyConnect dtls lzs compression
value of customization DfltCustomization
username vpnuser password PA$ encrypted $WORD
vpnuser username attributes
VPN-group-policy VPN_CLIENT_POLICY
type of remote access service
Username vpnuser2 password PA$ encrypted $W
username vpnuser2 attributes
type of remote access service
username admin password ADMINPA$ $ encrypted privilege 15
VPN Tunnel-group type remote access
General-attributes of VPN Tunnel-group
address VPN_CLIENT_POOL pool
Group Policy - by default-VPN_CLIENT_POLICY
VPN Tunnel-group webvpn-attributes
the aaa authentication certificate
enable VPN_to_R group-alias
type tunnel-group IT_PROFILE remote access
attributes global-tunnel-group IT_PROFILE
address VPN_CLIENT_POOL pool
Group Policy - by default-IT_POLICY
tunnel-group IT_PROFILE webvpn-attributes
the aaa authentication certificate
enable IT Group-alias
!
class-map inspection_default
match default-inspection-traffic
!
!
type of policy-card inspect dns preset_dns_map
parameters
maximum message length automatic of customer
message-length maximum 512
Policy-map global_policy
class inspection_default
inspect the preset_dns_map dns
inspect the ftp
inspect h323 h225
inspect the h323 ras
inspect the rsh
inspect the rtsp
inspect esmtp
inspect sqlnet
inspect the skinny
inspect sunrpc
inspect xdmcp
inspect the sip
inspect the netbios
inspect the tftp
Review the ip options
inspect the icmp
!
global service-policy global_policy
context of prompt hostname
no remote anonymous reporting call
: end
Help me please! Thank you!
Hello
Please set ACLs to allow ICMP between these two subnets (192.168.11.0 and 192.168.12.0) and check. It should ping. Let me know if it does not work.
Thank you
swap
-
Cannot ping inside the ASA from the inside interface
Don't know what I did wrong... appreciate any help
Here is the page layout
laptop--> cisco 3750 switch--> ASA5505 firewall--> future VPN tunnel
Laptop, switch interface VLAN and inside the ASA are all in the same subnet
Switch and ASA have all interfaces local network VIRTUAL 52 (the subnet in question), except for the external interface
-----------------
This is the problem
laptop getting ip addressing and def GW via DHCP from the firewall
switch and FW can ping each other without problem
FW can't ping, still gets the DHCP scope.
Thank you
Dave
Hello
How did you setup?
The laptop is connected to a port of the 3750 (VLAN 52).
The connection between the 3750 and the SAA is a chest or a link L3?
If the 3750 has a SVI belonging to VLAN52, you can ping from the correct PC? As well as the ASA?
Federico.
-
Cannot Ping across the VPN remote access
Hello world
I hope I posted this in the right place!
I'm a bit new to Cisco IOS, so please forgive me if I ask a stupid question!
We have a firewall of 515E PIX 6.3 (4) on which I used the VPN Wizard to set up a remote access VPN the Cisco VPN client on the external interface.
When I connect to home on my laptop Windows XP Pro SP2 running Cisco VPN Client 4.0.5(C) I seem to be able to connect to most of the network resources (IE file shares, I can RDP into servers, etc.) but I can't seem to be able to ping anything : I just request times out.
I'm sure it's something stupid I've done (or not done).
I have attached my config and would be grateful if someone could take a look and point me in the right direction.
Thanks in advance for your help,
Peter.
Hi Peter,.
You must add a line to the inside_access_in access list:
Enable
conf t
access-list inside_access_in allow icmp a whole
output
write members
Kind regards
Cathy
-
The VPN Clients cannot Ping hosts
I'll include a post my config. I have clients that connect through the VPN tunnel on the 180.0.0.0/24 network, 192.168.1.0/24 is the main network for the office.
I can connect to the VPN, and I received a correct address assignment. I belive tunneling can be configured correctly in the aspect that I can always connect to the internet then on the VPN, but I can't ping all hosts on the 192.168.1.0 network. In the journal of the ASDM debugging, I see pings to the ASA, but no response is received on the client.
6 February 21, 2013 21:54:26 180.0.0.1 53508 192.168.1.1 0 Built of ICMP incoming connections for faddr gaddr laddr 192.168.1.1/0 (christopher) 192.168.1.1/0 180.0.0.1/53508 Any help would be greatly appreciated, I'm currently presuring my CCNP so I would get a deeper understanding of how to resolve these issues.
-Chris
hostname RegencyRE - ASA
domain regencyrealestate.info
activate 2/VA7dRFkv6fjd1X of encrypted password
2KFQnbNIdI.2KYOU encrypted passwd
names of
name 180.0.0.0 Regency
!
interface Ethernet0/0
switchport access vlan 2
!
interface Ethernet0/1
link to the description of REGENCYSERVER
!
interface Ethernet0/2
!
interface Ethernet0/3
!
interface Ethernet0/4
!
interface Ethernet0/5
!
interface Ethernet0/6
!
interface Ethernet0/7
link to the description of RegencyRE-AP
!
interface Vlan1
nameif inside
security-level 100
192.168.1.120 IP address 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
IP x.x.x.x 255.255.255.248
!
passive FTP mode
clock timezone PST - 8
clock summer-time recurring PDT
DNS lookup field inside
DNS domain-lookup outside
DNS server-group DefaultDNS
Server name 208.67.220.220
name-server 208.67.222.222
domain regencyrealestate.info
inside_nat0_outbound to access ip 192.168.1.0 scope list allow 255.255.255.0 Regency 255.255.255.224
RegencyRE_splitTunnelAcl list standard access allowed 192.168.1.0 255.255.255.0
outside_access_in list extended access permit icmp any one
pager lines 24
Enable logging
asdm of logging of information
Within 1500 MTU
Outside 1500 MTU
mask Regency 180.0.0.1 - 180.0.0.20 255.255.255.0 IP local pool
ICMP unreachable rate-limit 1 burst-size 1
ICMP allow any inside
ICMP allow all outside
ASDM 255.255.255.0 inside Regency location
ASDM location 192.168.0.0 255.255.0.0 inside
don't allow no asdm history
ARP timeout 14400
Global 1 interface (outside)
NAT (inside) 0-list of access inside_nat0_outbound
Access-group outside_access_in in interface outside
Route outside 0.0.0.0 0.0.0.0 12.186.110.2 1
Route inside 192.0.0.0 255.0.0.0 192.168.1.102 1
Timeout xlate 03:00
Timeout conn 01:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
Sunrpc timeout 0:10:00 h323 0:05:00 h225 mgcp from 01:00 0:05:00 mgcp-pat 0:05:00
Sip timeout 0:30:00 sip_media 0:02:00 prompt Protocol sip-0: 03:00 sip - disconnect 0:02:00
Timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
Floating conn timeout 0:00:00
dynamic-access-policy-registration DfltAccessPolicy
the ssh LOCAL console AAA authentication
LOCAL AAA authentication serial console
http server enable 8443
http 0.0.0.0 0.0.0.0 outdoors
http 0.0.0.0 255.255.255.0 inside
No snmp server location
No snmp Server contact
Server enable SNMP traps snmp authentication linkup, linkdown cold start
Crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac
Crypto ipsec transform-set ESP-DES-SHA esp - esp-sha-hmac
Crypto ipsec transform-set ESP-DES-MD5 esp - esp-md5-hmac
Crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac
Crypto ipsec transform-set ESP-3DES-MD5-esp-3des esp-md5-hmac
Crypto ipsec transform-set ESP-AES-256-SHA 256 - aes - esp esp-sha-hmac
Crypto ipsec transform-set ESP-AES-128-SHA aes - esp esp-sha-hmac
Crypto ipsec transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac
Crypto ipsec transform-set ESP-AES-128-MD5-esp - aes esp-md5-hmac
Crypto ipsec transform-set esp-SHA-ESP-3DES-3des esp-sha-hmac
life crypto ipsec security association seconds 28800
Crypto ipsec kilobytes of life - safety 4608000 association
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 pfs Group1 set
Crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 value transform-set ESP-AES-128-SHA ESP-AES-128-MD5 ESP-AES-192-SHA ESP-AES-192-MD5 ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA MD5-ESP-3DES ESP-DES-SHA ESP-DES-MD5
outside_map card crypto 65535-isakmp dynamic ipsec SYSTEM_DEFAULT_CRYPTO_MAP
outside_map interface card crypto outside
crypto ISAKMP allow outside
crypto ISAKMP policy 10
preshared authentication
3des encryption
sha hash
Group 2
life 86400
Telnet timeout 5
SSH 0.0.0.0 0.0.0.0 inside
SSH 0.0.0.0 0.0.0.0 outdoors
SSH timeout 15
SSH version 2
Console timeout 0
dhcprelay Server 192.168.1.102 inside
a basic threat threat detection
Statistics-list of access threat detection
no statistical threat detection tcp-interception
NTP server 69.25.96.13 prefer external source
NTP server 216.171.124.36 prefer external source
WebVPN
internal RegencyRE group strategy
attributes of Group Policy RegencyRE
value of server DNS 208.67.220.220 208.67.222.222
Protocol-tunnel-VPN IPSec
Split-tunnel-policy tunnelspecified
value of Split-tunnel-network-list RegencyRE_splitTunnelAcl
username password encrypted adriana privilege 0
christopher encrypted privilege 15 password username
irene encrypted password privilege 0 username
type tunnel-group RegencyRE remote access
attributes global-tunnel-group RegencyRE
Regency address pool
Group Policy - by default-RegencyRE
IPSec-attributes tunnel-group RegencyRE
pre-shared key R3 & eNcY1.
!
class-map inspection_default
match default-inspection-traffic
!
!
type of policy-card inspect dns preset_dns_map
parameters
maximum message length automatic of customer
message-length maximum 512
Policy-map global_policy
class inspection_default
inspect the preset_dns_map dns
inspect the ftp
inspect h323 h225
inspect the h323 ras
Review the ip options
inspect the netbios
inspect the rsh
inspect the rtsp
inspect the skinny
inspect esmtp
inspect sqlnet
inspect sunrpc
inspect the tftp
inspect the sip
inspect xdmcp
!
global service-policy global_policy
context of prompt hostname
no remote anonymous reporting call
call-home
Profile of CiscoTAC-1
no active account
http https://tools.cisco.com/its/service/oddce/services/DDCEService destination address
email address of destination [email protected] / * /
destination-mode http transport
Subscribe to alert-group diagnosis
Subscribe to alert-group environment
Subscribe to alert-group monthly periodic inventory
monthly periodicals to subscribe to alert-group configuration
daily periodic subscribe to alert-group telemetry
Cryptochecksum:35bc3a41701f7f8e9dde5fa35532896d
: end
Hello
-be sure that the destination host 192.168.1.x has a route towards 180.0.0.0 by the ASA gateway.
-Configure the following figure:
capture capin interface inside match icmp 192.168.1.x host 180.0.0.x
capture ASP asp type - drop all
then make a continuous ping and get 'show capin cap' and 'asp cap.
-then check the ping, the 'encrypted' counter is increasing in the VPN client statistics
I would like to know about it, hope this helps
----
Mashal
-
Client VPN cannot get inside the network
The VPN client connects to the 2600 on the serial interface, should be able to get to the 10.10.0.0 network beyond 192.168.1.14. The customer ping responds failure of external serial interface address.
If you still have problems... can you check that there is a static route BOF 192.168.100.0/24 on router 192.168.1.14 and initiate a tracert to a host on the network of 10.10.x.x at 192.168.100.7 and see where it goes... your tests show that the VPN client knows how to get to this subnet, but it seems that there is a problem of routing between 10.X.X.X going 192.168.100.0
I hope that helps!
-
try VPN remote ping inside the network
I use this Setup
http://www.Cisco.com/image/gif/en/us/guest/tech/TK372/c1492/ccmigration_09186a008009442e.gif
I cannot ping inside user from the remote client?
do you know why?
Add...
management-access inside
Please evaluate the useful messages.
-
The VPN Clients need access to the subnet on another router
Hello
We have a pix 515e PIX Version 8.0 (2)
We have two subnet 10.1.x.x/16 and 10.2.x.x/16
The firewall is on 10.1.x.x and vpn clients can access this subnet.
The firewall can ping 10.2.x.y where x is a server in the other subnet.
On the 10.2.x.x customers out the firewall.
The problem is that vpn clients cannot access the server of 10.2.x.y even if the pix can ping 10.2.x.y and the road for him.
What I need to check that the vpn rules are correct in the pix 515e?
I think it is a rule of exemption nat or something like that not exactly sure.
Everything would be a great help.
Thank you
Hello
For clients VPN access to these subnets, check the following:
1 NAT exemption include these subnets (if not using NAT)... it's the NAT0 ACL command
2. these subnets is included in the split tunneling
3. these subnets have a route to the PIX to send traffic to the VPN client pool.
4. There are no ACLs not applied to the inside interface of the PIX deny this communication.
Federico.
-
Routing problem between the VPN Client and the router's Ethernet device
Hello
I have a Cisco 1721 in a test environment.
A net 172.16.0.0/19 simulates the Internet and a net 192.168.1.0/24 simulates the net, the VPN tunnel must go to (intranet).
The net 172.16.0.0 depends on the router 0 FastEthernet, Intranet (VPN) hangs on Ethernet 0.
The configuration was inspired form the sample Configuration
"Configuring the Client VPN Cisco 3.x for Windows to IOS using Local extended authentication"
and the output of the ConfigMaker configuration.
Authentication and logon works. Client receives an IP address from the pool. But there's a routing problem
side of routers. Ping client-side - do not work (the VPN client statistics that count encrypt them packets, but not to decrypt).
Ping the router works too, but decrypt and encrypt customer statistics in VPN packets count progressive
(customer has a correct route and return ICMP packets to the router).
The question now is:
How to route packets between the Tunnel and an Ethernet device (Ethernet 0)?
conf of the router is attached - hope that's not too...
Thanks & cordially
Thomas Schmidt
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- snipp .-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
!
version 12.2
horodateurs service debug uptime
Log service timestamps uptime
encryption password service
!
!
host name * moderator edit *.
!
enable secret 5 * moderator edit *.
!
!
AAA new-model
AAA authentication login userauthen local
AAA authorization groupauthor LAN
!
! only for the test...
!
username cisco password 0 * moderator edit *.
!
IP subnet zero
!
audit of IP notify Journal
Max-events of po verification IP 100
!
crypto ISAKMP policy 3
3des encryption
preshared authentication
Group 2
!
ISAKMP crypto client configuration group 3000client
key cisco123
pool ippool
!
! We do not want to divide the tunnel
! ACL 108
!
Crypto ipsec transform-set esp-3des esp-sha-hmac RIGHT
!
Crypto-map dynamic dynmap 10
Set transform-set RIGHT
!
map clientmap client to authenticate crypto list userauthen
card crypto clientmap isakmp authorization list groupauthor
client configuration address map clientmap crypto answer
10 ipsec-isakmp crypto map clientmap Dynamics dynmap
!
interface Ethernet0
no downtime
Description connected to VPN
IP 192.168.1.1 255.255.255.0
full-duplex
IP access-group 101 in
IP access-group 101 out
KeepAlive 10
No cdp enable
!
interface Ethernet1
no downtime
address 192.168.3.1 IP 255.255.255.0
IP access-group 101 in
IP access-group 101 out
full-duplex
KeepAlive 10
No cdp enable
!
interface FastEthernet0
no downtime
Description connected to the Internet
IP 172.16.12.20 255.255.224.0
automatic speed
KeepAlive 10
No cdp enable
!
! This access group is also only for test cases!
!
no access list 101
access list 101 ip allow a whole
!
local pool IP 192.168.10.1 ippool 192.168.10.10
IP classless
IP route 0.0.0.0 0.0.0.0 172.16.12.20
enable IP pim Bennett
!
Line con 0
exec-timeout 0 0
password 7 * edit from moderator *.
line to 0
line vty 0 4
!
end
^-^-^-^-^-^-^-^-^-^-^-^-^- snapp ^-^-^-^-^-^-^-^-^-^-^-^-^-^-
Thomas,
Can't wait to show something that might be there, but I don't see here. You do not have the card encryption applied to one of the interfaces, perhaps it was not copied. Assuming your description you do it, or should it be, applied to the fa0 and you are connected. Try how you ping? Since the router or a device located on E0? If you ping the router, you will need to do an extended ping of E0 to the ip address of the client has been assigned. If your just ping the router without the extension, you will get sales and decrypts that you declare on the client. Have you tried to ping from the client to interface E0? Your default route on the router is pointing to fa0? You have a next hop to affect? You have several NIC on the client pc? Turn off your other network cards to check that you don't have a problem with routing on the client if you have more than one.
Kurtis Durrett
-
The VPN client VPN connection behind other PIX PIX
I have the following problem:
I wanted to establish the VPN connection the client VPN to PIX on GPRS / 3G, but I didn t have a bit of luck with PIX IOS version 6.2 (2).
So I upgraded PIX to 6.3 (4) to use NAT - T and VPN client to version 4.0.5
I have configured PIX with NAT-T(isakmp nat-traversal 20), but I still had a chance, he would not go through the 1st phase. As soon as I took nat-traversal isakmp off he started working, and we can connect to our servers.
Now, I want to connect to the VPN client behind PIX to our customer PIX network. VPN connection implements without problem, but we can not access the servers. If I configure NAT - T on the two PIX, or only on the customer PIX or only on our PIX, no VPN connection at all.
If I have to connect VPN client behind PIX to the customer's network and you try to PING DNS server for example, on our PIX, I have following error:
305006: failed to create of portmap for domestic 50 CBC protocol translation: dst outside:194.x.x.x 10.10.1.x
194.x.x.x is our customer s address IP PIX
I understand that somewhere access list is missing, but I can not understand.
Of course, I can configure VPN site to site, but we have few customers and take us over their servers, so it'd just connect behind PIX VPN and client connection s server, instead of the first dial-in and then establish a VPN connection.
Can you please help me?
Thank you in advan
The following is extracted from ASK THE DISCUSSION FORUM of EXPERTS with Glenn Fullage of Cisco.
I've cut and pasted here for you to read, I think that the problem mentioned below:
Question:
Hi Glenn,.
Following is possible?
I have the vpn client on my PC, my LAN is protected by a pix. I can launch the vpn client to connect to remote pix. Authenticates the vpn client and the remote pix makes my PC with the assigned ip appropriate to its pool of ip address.
The problem that I am facing is that I can not anything across the pix remote ping from my PC which is behind my pix. Can you please guide me what I have to do to make this work, if it is possible?
My PC has a static ip address assigned with the default gateway appropriate pointing to my s pix inside interface.
Thank you very much for any help provided in advance.
Response from Glenn:
First of all, make sure that the VPN connection works correctly when the remote PC is NOT behind a PIX. If that works fine, but then breaks when put behind a PIX, it is probably that the PIX is PAT, which usually breaks IPSec. Add the following command on your PIX VPN client is behind:
fixup protocol esp-ike
See http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_sw/v_63/cmdref/df.htm#wp1067379 for more details.
If it still has issues, you can turn on NAT - T on the remote PIX that ends the VPN, the client and the remote PIX must encapsulate then all IPSec in UDP packets that your PIX will be able to PA correctly. Add the following command on the remote PIX:
ISAKMP nat-traversal
See http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_sw/v_63/cmdref/gl.htm#wp1027312 for more details.
NAT - T is a standard for the encapsulation of the UDP packets inot IETF IPSec packets.
ESP IPSec (Protocol that use your encrypted data packets) is an IP Protocol, it is located just above IP, rather than being a TCP or UDP protocol. For this reason, it has no TCP/UDP port number.
A lot of features that make the translation of address of Port (PAT) rely on a single to PAT TCP/UDP source port number ' ing. Because all traffic is PAT would be at the same source address, must be certain uniqueness to each of its sessions, and most devices use the port number TCP/UDP source for this. Because IPSec doesn't have one, many features PAT fail to PAT it properly or at all, and the data transfer fails.
NAT - T is enabled on both devices of the range, they will determine during the construction of the tunnel there is a PAT/NAT device between them, and if they detect that there is, they automatically encapsulate every IPSec packets in UDP packets with a port number of 4500. Because there is now a port number, PAT devices are able to PAT it correctly and the traffic goes normally.
Hope that helps.
-
Terminating the VPN client on 871W
Hello
I tried to install EasyVPN on a cisco 871W by SDM. The goal is to finish the VPN client with authentication with an external RADIUS/advertising (on a local subnet). I implemented the IAS on a win2003 Server advertising and checked the accounts.
SDM was missing the 'crypto map' piece of config. After you add this in the CLI it still didn't work. Thus, EasyVPN is not as easy at is sounds...
Could someone with some knowledge of VPN and IPsec and so forth please look at this config? Maybe it gives me an idea of what I did wrong (which, without a doubt, must be the case).
Thank you
Erik
==
AAA new-model
!
AAA rad_eap radius server group
auth-port 1645 10.128.7.5 Server acct-port 1646
!
AAA rad_mac radius server group
!
AAA rad_acct radius server group
!
AAA rad_admin radius server group
!
AAA server Ganymede group + tac_admin
!
AAA rad_pmip radius server group
!
RADIUS server AAA dummy group
!
AAA authentication login default local
AAA authentication login eap_methods group rad_eap
AAA authentication login mac_methods local
AAA authentication login sdm_vpn_xauth_ml_1 local
AAA authorization exec default local
AAA authorization ipmobile default group rad_pmip
AAA authorization sdm_vpn_group_ml_1 LAN
AAA accounting network acct_methods
action-type market / stop
Group rad_acct
!
!
!
AAA - the id of the joint session
clock timezone MET 1
clock to DST DST PUTS recurring last Sun Mar 02:00 last Sun Oct 02:00
!
Crypto pki trustpoint TP-self-signed-1278336536
enrollment selfsigned
name of the object cn = IOS - Self - signed - certificate - 1278336536
revocation checking no
rsakeypair TP-self-signed-1278336536
!
!
TP-self-signed-1278336536 crypto pki certificate chain
certificate self-signed 01
3082024A 308201B 3 A0030201 02020101 300 D 0609 2A 864886 F70D0101 04050030
2 060355 04031326 494F532D 53656 C 66 2 AND 536967 6E65642D 43657274 31312F30
69666963 31323738 33333635 6174652D 3336301E 170 3039 31303237 32313237
32395A 17 0D 323030 31303130 30303030 305A 3031 06035504 03132649 312F302D
4F532D53 5369676E 656C662D 43 65727469 66696361 74652 31 32373833 65642D
33363533 3630819F 300 D 0609 2A 864886 01050003, 818, 0030, 81890281 F70D0101
81008B 56 5902F5DF FCE1A56E 3A63350E 45956514 1767EF73 FEC6CD16 7E982A82
B0AF8546 ABB3D35A B7C3A7E3 3ACCB34A 8B655C97 F103DBD5 9AAEFEFC 37A 02103
4EFC398B 0C8B6BE5 AD3E568E 6CB69F87 CBCA0785 EAED0A28 726F2F0A B0B0453E
32E6B3B7 861F87FA 222197DD 3410D8A9 35939E9B CBF95F20 B8DA6ADE BF460F5C
BF8F0203 010001A 3 72307030 130101 1 FF040530 030101FF 301D 0603 0F060355
551 1104 16301482 12444341 4E495430 302E6361 6E2D6974 2E657530 1F060355
1 230418 30168014 84C9223E 661B2EB4 5BAB0B0E 1BE3A27A 64B3AEB0 301D 0603
551D0E04 16041484 C9111E66 1B2EB45B AB0B0E1B E3A27A64 B3AEB030 0D06092A
010104 05000381 8693B 599 70EC1F1A D2995276 F3E4AF9D 81002F4A 0D 864886F7
17E3583A 46C749F9 38743E6F F5E60478 5B9B5091 E944C689 7BA6DCA2 94D2FBD3
AFDE4500 A0A3644E 603A852D 55ED7A87 93501D5C 1662DAED 3FFFEC5A F1C38ED4
E0787561 BA5C14A3 6D065FCF 7DBDEBB6 9186C2D9 AA253FBF A9E38BC3 342C3AC9
2BEF6821 E4C50277 493AD5B6 2AFE
quit smoking
dot11 syslog
!
IP source-route
!
!
DHCP excluded-address IP 10.128.1.250 10.128.1.254
DHCP excluded-address IP 10.128.150.250 10.128.150.254
DHCP excluded-address IP 10.128.7.0 10.128.7.100
DHCP excluded-address IP 10.128.7.250 10.128.7.254
!
pool IP dhcp VLAN30-COMMENTS
import all
Network 10.128.1.0 255.255.255.0
router by default - 10.128.1.254
10.128.7.5 DNS server
-10.128.7.5 NetBIOS name server
aaa.com domain name
4 rental
!
IP dhcp VLAN20-STAFF pool
import all
Network 10.128.150.0 255.255.255.0
router by default - 10.128.150.254
10.128.7.5 DNS server
-10.128.7.5 NetBIOS name server
aaa.com domain name
4 rental
!
IP dhcp SERVERS VLAN10 pool
import all
Network 10.128.7.0 255.255.255.0
router by default - 10.128.7.254
10.128.7.5 DNS server
-10.128.7.5 NetBIOS name server
aaa.com domain name
4 rental
!
!
IP cef
no ip domain search
IP domain name aaa.com
inspect the tcp IP MYFW name
inspect the IP udp MYFW name
No ipv6 cef
!
Authenticated MultiLink bundle-name Panel
!
VPDN enable
!
!
!
username privilege 15 secret 5 xxxx xxxx
!
!
crypto ISAKMP policy 1
BA 3des
preshared authentication
Group 2
!
ISAKMP crypto client configuration group vpn
key xxxx
pool SDM_POOL_1
netmask 255.255.255.0
!
!
Crypto ipsec transform-set esp-SHA-ESP-3DES-3des esp-sha-hmac
!
crypto dynamic-map SDM_DYNMAP_1 1
market arriere-route
!
!
card crypto SDM_CMAP_1 client authentication list sdm_vpn_xauth_ml_1
map SDM_CMAP_1 isakmp authorization list sdm_vpn_group_ml_1 crypto
client configuration address map SDM_CMAP_1 crypto answer
map SDM_CMAP_1 65535-isakmp dynamic SDM_DYNMAP_1 ipsec crypto
!
Crypto ctcp port 10000
Archives
The config log
hidekeys
!
!
!
Bridge IRB
!
!
interface Loopback0
10.128.201.1 the IP 255.255.255.255
map SDM_CMAP_1 crypto
!
interface FastEthernet0
switchport access vlan 10
!
interface FastEthernet1
switchport access vlan 20
!
interface FastEthernet2
switchport access vlan 10
!
interface FastEthernet3
switchport access vlan 30
!
interface FastEthernet4
no ip address
Speed 100
full-duplex
PPPoE enable global group
PPPoE-client dial-pool-number 1
No cdp enable
!
interface Dot11Radio0
no ip address
Shutdown
No dot11 extensions aironet
!
interface Vlan1
address IP AAA. BBB. CCC.177 255.255.255.240
no ip redirection
no ip proxy-arp
NAT outside IP
no ip virtual-reassembly
No autostate
Hold-queue 100 on
!
interface Vlan10
SERVER description
no ip address
IP nat inside
no ip virtual-reassembly
No autostate
Bridge-group 10
Bridge-group of 10 disabled spanning
!
interface Vlan20
Description of the STAFF
no ip address
IP nat inside
no ip virtual-reassembly
No autostate
Bridge-group 20
Bridge-group 20 covering people with reduced mobility
!
Vlan30 interface
Description COMMENTS
no ip address
IP nat inside
no ip virtual-reassembly
No autostate
Bridge-group 30
Bridge-group 30 covering people with reduced mobility
!
interface Dialer1
MTU 1492
IP unnumbered Vlan1
no ip redirection
no ip proxy-arp
NAT outside IP
inspect the MYFW over IP
IP virtual-reassembly
encapsulation ppp
Dialer pool 1
Dialer-Group 1
PPP authentication pap callin
PPP pap sent-name of user password 7 xxxx xxxxx
!
interface BVI10
Description the server network bridge
IP 10.128.7.254 255.255.255.0
IP nat inside
IP virtual-reassembly
!
interface BVI20
Description personal network bridge
IP 10.128.150.254 255.255.255.0
IP nat inside
IP virtual-reassembly
!
interface BVI30
Bridge network invited description
IP 10.128.1.254 255.255.255.0
IP access-group Guest-ACL in
IP nat inside
IP virtual-reassembly
!
pool of local SDM_POOL_1 192.168.2.1 IP 192.168.2.100
IP forward-Protocol ND
IP route 0.0.0.0 0.0.0.0 Dialer1
IP http server
access-class 2 IP http
local IP http authentication
IP http secure server
IP http secure ciphersuite 3des-ede-cbc-sha
IP http secure-client-auth
IP http timeout policy slowed down 60 life 86400 request 10000
!
!
overload of IP nat inside source list 101 interface Vlan1
IP nat inside source static tcp 10.128.7.1 25 AAA. BBB. Expandable 25 CCC.178
IP nat inside source static tcp 10.128.7.1 80 AAA. BBB. CCC.178 extensible 80
IP nat inside source static tcp 10.128.7.1 443 AAA. BBB. CCC.178 extensible 443
IP nat inside source static tcp 10.128.7.1 8333 AAA. BBB. CCC.178 extensible 8333
IP nat inside source static tcp 10.128.7.2 25 AAA. BBB. Expandable 25 CCC.179
IP nat inside source static tcp 10.128.7.2 80 AAA. BBB. CCC.179 extensible 80
IP nat inside source static tcp 10.128.7.2 443 AAA. BBB. CCC.179 extensible 443
IP nat inside source static tcp 10.128.7.2 8333 AAA. BBB. CCC.179 extensible 8333
IP nat inside source static tcp 10.128.7.3 25 AAA. BBB. Expandable 25 CCC.180
IP nat inside source static tcp 10.128.7.3 80 AAA. BBB. CCC.180 extensible 80
IP nat inside source static tcp 10.128.7.3 443 AAA. BBB. CCC.180 extensible 443
IP nat inside source static tcp 10.128.7.3 8333 AAA. BBB. CCC.180 extensible 8333
IP nat inside source static tcp 10.128.7.4 25 AAA. BBB. Expandable 25 CCC.181
IP nat inside source static tcp 10.128.7.4 80 AAA. BBB. CCC.181 extensible 80
IP nat inside source static tcp 10.128.7.4 443 AAA. BBB. CCC.181 extensible 443
IP nat inside source static tcp 10.128.7.4 8333 AAA. BBB. CCC.181 extensible 8333
IP nat inside source static tcp 10.128.7.5 25 AAA. BBB. Expandable 25 CCC.182
IP nat inside source static tcp 10.128.7.5 80 AAA. BBB. CCC.182 extensible 80
IP nat inside source static tcp 10.128.7.5 443 AAA. BBB. CCC.182 extensible 443
IP nat inside source static tcp 10.128.7.5 8333 AAA. BBB. CCC.182 extensible 8333
IP nat inside source static tcp 10.128.7.6 25 AAA. BBB. Expandable 25 CCC.183
IP nat inside source static tcp 10.128.7.6 80 AAA. BBB. CCC.183 extensible 80
IP nat inside source static tcp 10.128.7.6 443 AAA. BBB. CCC.183 extensible 443
IP nat inside source static tcp 10.128.7.6 8333 AAA. BBB. CCC.183 extensible 8333
IP nat inside source static tcp 10.128.7.7 25 AAA. BBB. Expandable 25 CCC.184
IP nat inside source static tcp 10.128.7.7 80 AAA. BBB. CCC.184 extensible 80
IP nat inside source static tcp 10.128.7.7 443 AAA. BBB. CCC.184 extensible 443
IP nat inside source static tcp 10.128.7.7 8333 AAA. BBB. CCC.184 extensible 8333
IP nat inside source static tcp 10.128.7.8 25 AAA. BBB. Expandable 25 CCC.185
IP nat inside source static tcp 10.128.7.8 80 AAA. BBB. CCC.185 extensible 80
IP nat inside source static tcp 10.128.7.8 443 AAA. BBB. CCC.185 extensible 443
IP nat inside source static tcp 10.128.7.8 8333 AAA. BBB. CCC.185 extensible 8333
IP nat inside source static tcp 10.128.7.9 25 AAA. BBB. Expandable 25 CCC.186
IP nat inside source static tcp 10.128.7.9 80 AAA. BBB. CCC.186 extensible 80
IP nat inside source static tcp 10.128.7.9 443 AAA. BBB. CCC.186 extensible 443
IP nat inside source static tcp 10.128.7.9 8333 AAA. BBB. CCC.186 extensible 8333
IP nat inside source static tcp 10.128.7.10 25 AAA. BBB. Expandable 25 CCC.187
IP nat inside source static tcp 10.128.7.10 80 AAA. BBB. CCC.187 extensible 80
IP nat inside source static tcp 10.128.7.10 443 AAA. BBB. CCC.187 extensible 443
IP nat inside source static tcp 10.128.7.10 8333 AAA. BBB. CCC.187 extensible 8333
IP nat inside source static tcp 10.128.7.11 25 AAA. BBB. Expandable 25 CCC.188
IP nat inside source static tcp 10.128.7.11 80 AAA. BBB. CCC.188 extensible 80
IP nat inside source static tcp 10.128.7.11 443 AAA. BBB. CCC.188 extensible 443
IP nat inside source static tcp 10.128.7.11 8333 AAA. BBB. CCC.188 extensible 8333
IP nat inside source static tcp 10.128.7.12 25 AAA. BBB. Expandable 25 CCC.189
IP nat inside source static tcp 10.128.7.12 80 AAA. BBB. CCC.189 extensible 80
IP nat inside source static tcp 10.128.7.12 443 AAA. BBB. CCC.189 extensible 443
IP nat inside source static tcp 10.128.7.12 8333 AAA. BBB. CCC.189 extensible 8333
!
Guest-ACL extended IP access list
deny ip any 10.128.7.0 0.0.0.255
deny ip any 10.128.150.0 0.0.0.255
allow an ip
IP Internet traffic inbound-ACL extended access list
allow udp any eq bootps any eq bootpc
permit any any icmp echo
permit any any icmp echo response
permit icmp any any traceroute
allow a gre
allow an esp
!
access-list 1 permit 10.128.7.0 0.0.0.255
access-list 1 permit 10.128.150.0 0.0.0.255
access-list 1 permit 10.128.1.0 0.0.0.255
access-list 2 allow 10.0.0.0 0.255.255.255
access-list 2 refuse any
access-list 101 permit ip 10.128.7.0 0.0.0.255 any
access-list 101 permit ip 10.128.150.0 0.0.0.255 any
access-list 101 permit ip 10.128.1.0 0.0.0.255 any
Dialer-list 1 ip Protocol 1
!
!
!
!
format of server RADIUS attribute 32 include-in-access-req hour
RADIUS-server host 10.128.7.5 auth-port 1645 acct-port 1646 borders 7 xxxxx
RADIUS vsa server send accounting
!
control plan
!
IP route 10 bridge
IP road bridge 20
IP road bridge 30
Banner motd ^.
Unauthorized access prohibited. *
All access attempts are logged! ***************^
!
Line con 0
password 7 xxxx
no activation of the modem
line to 0
line vty 0 4
access-class 2
privilege level 15
transport input telnet ssh
!
max-task-time 5000 Planner
AAA.BBB.CCC.ddd NTP server
endErik,
The address pool you are talking about is to assign to the customer or the public router interface? If you want to set up your vpn client software point a full domain name instead of an IP address that you can do it too long you can ensure the use of the name is resolved by a DNS SERVER.
The range of addresses that you can be asigned to your Dialer interface will depend on your ISP.
-Butterfly
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