I have a stable l2tp/ipsec config that I have been using for many years with the Windows XP native VPN client and the iPhone VPN client.This configuration does not seem to work with the native Windows 7 VPN client. What has changed between XP and 7 on the native VPN client front? I'm running IOS 12.4(15)T5.
View 1 Repliesi have configure l2tp/ipsec vpn on cisco ASA 5520 and also configure windows 7 client but its getting error
Error in ASA debug log
debug crypto isakmp 7
Mar 26 07:44:28 [IKEv1]: IP = 59.161.130.13, IKE_DECODE RECEIVED Message
[Code]......
I'm having problem establish l2tp/ipsec vpn connection from Windows vista/7 vpn client to cisco 1921 ( ios 15.2 )
C1 --------> (internet cloud) ---------> (cisco 1921)----->LAN
Error that I'm retrieving is always the same: Error 789: "The L2TP connection attempt failed because the security layer encountered a processing error during initial negotiations with the remote computer"
But I'm able to establish l2tp/ipsec vpn connection to the same vpn server with my iPhone 4.
Below is isakmp debug log from lns router(cisco 1921) when I've tried to establish vpn with windows client. Anything useful from these logs to point me on the right direction to finally solve this problem with windows clients.
#debug crypto isakmp
*Apr 8 10:56:47.018: ISAKMP (0): received packet from 186.51.43.137 dport 500 sport 987 Global (N) NEW SA
*Apr 8 10:56:47.018: ISAKMP: Created a peer struct for 186.51.43.137, peer port 987
*Apr 8 10:56:47.018: ISAKMP: New peer created peer = 0x3296C24C peer_handle = 0x80000068
[Code]...
I'm trying to setup a L2TP over IPSEC vpn connection on a PIX 501 that will use key sharing. In addition, I have a PPTP connection setup which allows connectivity. Two things, the L2TP vpn client I am using does not connect and times out. The second is that the PPTP client I use does connect, but cannot ping any resources on the network.
The config on the PIX is below:
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
[ Code] .....
I am trying to get a L2TP/IPSEC VPN going on one of my servers behind the DIR655 router I have used Port Forwarding and Virtual Server and neithere seem to allow these ports to be open in either situation a port scan shows the ports closed..My ISP (Comcast) does not block these ports?
View 14 Replies View RelatedI had my PPTP VPN working great at my old place, now that I moved I also upgraded my speed which means I got a different 2Wire. This 2Wire can only do DMZ mode and can't bridge. ( I tried everything, including the mdc page, no go). This works fine apart from blocking GRE somehow. I'm using a Mikrotik RB450G as my PPTP server. Does L2TP or IPSEC use the GRE protocol?
View 1 Replies View RelatedI have a Cisco 7200 and need to establish L2TP over IPSEC session with a Draytek Fly200. Draytek must use L2TP over IPSEC to provide LAN-to-LAN connectivity. IPSEC phase 1 and 2 is ok, L2TP tunnel is also established, but on cloned virtual-access IPCP negotiation is not completed:
*Sep 16 09:50:36.911: %LINK-3-UPDOWN: Interface Virtual-Access3, changed state to up
L2X_ADJ: Vi3:midchain adj reqd for ip 0.0.0.0, cid 0
*Sep 16 09:50:38.911: Vi3 IPCP: O CONFREQ [REQsent] id 2 len 10
*Sep 16 09:50:38.911: Vi3 IPCP: Address 192.168.176.2 (0x0306C0A8B002)
*Sep 16 09:50:38.911: Vi3 IPCP: Event[Timeout+] State[REQsent to REQsent]
I think my VPDN configuration from Cisco side is not correct, but I cannot find configuration examples for this kind of solution.
I have a 5510 that i have configured for L2TP over IPSEC, not using AnyConnect. The first, and most prevelant being, VPN clients are unable to ping/access any of the hosts that are assigned a static NAT from the inside interface to the outside interface. I was able to circumvent this by adding another static NAT to the public interface for the incoming clients, but this caused intermittent connectivity issues with inside hosts. The second issue involves DNS. I have configured two DNS servers, both of which reside on the internal network and are in the split_tunnel ACL for VPN clients, but no clients are using this DNS. What is the workaround for using split tunneling AND internal DNS servers, if any?
i've had two different CCNA's look at this numerous times to no avail. A ping from a VPN client to any internal host works fine, unless it is one that is NAT'd. You can see in the config where i added the extra STATIC NAT to try and fix the issue. And this works perfectly across the tunnel but only intermittenly from the internal 10.1.4.x network. [code]
Co-worker just got a Blackberry Playbook tablet and, try as I might, we cannot get the darn thing to successfully set up a working IPSEC/L2TP vpn tunnel to our ASA 5510, which acts as a multi-purpose VPN concentrator. Any luck setting up L2TP/IPSEC VPN to ASA from Blackberry Playbook?
View 0 Replies View RelatedI'm opening a new topic related to my problem with the VPN connection, to avoid confusion, since there are many, in the old information, no longer required.
I would like to configure my ASA5510 L2PT/IpSec to accept connections from Windows clients. I happen to authenticate via AD credentials. When I try to connect is because the error 691. I enabled debugging on the machine the following:
debug crypto isakmp 3
debug crypto ipsec 3
debug ldap 255
Successfull in setting up an L2TP/IPsec tunnel through NAT-T against a Windows 2008/ R2 RRAS server? I am using an 881 router and the layout is someting like this:Client -> 881 -> NAT -> internet -> Windows 2008 RRAS.The tunnel goes form the 881 to the Windows server (not from the client...).
View 4 Replies View Relatedi am now trying to configure a Cisco Small Business Pro SRP 521w router for a branch office, i am trying to get the router to connect to a L2TP VPN server inside my datacenter, but seems to me like L2TP VPN client function is not supported inside the SRP 521w router.
Can Cisco implement L2TP VPN client into the firmware for the SRP 521w router in the future ?
i configurated ipsec vpn at cisco asa 5510. all them are working very well. now i want to change ipsec remote vpn to L2tp over ipsec.i have router, asa and 3750 switch. all nat translation are done at router , ipsec vpn configurate at asa.
this is my ipsec configuration. this is working config. as you see i do static nat asa outside ip for vpn at router. now i want l2tp over ipsec. before i do it i have some question
1. must i do static nat port udp 1701 for l2tp over ipsec vpn? can i write access list at asa to open port 1701?
2. can i remove this static nat or i can not be change anything.is this nat is true for l2tp over ipsec vpn?
3.as you see user authentication from radius server at ipsec vpn. i also want this is same as l2tp over ipsec vpn..
4. i think that i must be add this addtional config. is this true? tunnel-group DefaultRAGroup ppp-attributesno authentication chapauthentication ms-chap-v2
is this config enougth for l2tp over ipsec vpn?? what is addtional config i need?
Any good vpn config for a router to allow vpn connections from Android phones using L2TP-IPSEC? Router is an 1841 running most current IOS ver 15.1.
View 1 Replies View RelatedWe have ASA 5520 running 8.2(3) software and we're trying to make Remote Access VPN (l2tp/ipsec) working from Android. We succeeded in making IPSEC tunnel (ending "Phase 2 completed"), but we cannot make L2TP tunnel working.We're using RADIUS for L2TP authentication, but ASA doesn't even try to check credentials entered by use. The same set of credentials entered on Windows {XP, VISTA, 7, Mobile} works ok. Which debugging options should we turned on?
View 3 Replies View RelatedI have a Cisco ASA 5505 Firewall. I am using windows VPN. I have configure IPSEC/L2TP Vpn. And now i hv some problem..
1) VPN is connected but I notices that VPN client connection gets in "HANG" mode after couple of minutes.
2) I am getting error when i try to connect my SQL Server (windows 2008) [code]
Is it possible to configure Layer 2 Tunneling Protocol (L2TP) over IPsec on a cisco router like 1921 ISR? This link shows basically what i want to achieve but instead of an ASA, i would like to use just a router with sec..
[URL]
I'm trying to setup a L2TP VPN Connection on my ASA 5510 to connect with Android/Windows (Native Clients).I'm using the newest Releases:Cisco Adaptive Security Appliance Software Version 8.3(2) Device Manager Version 6.3(5)
My asa config just the interesting part:
crypto ipsec transform-set trans esp-3des esp-sha-hmac crypto ipsec transform-set trans mode transportcrypto ipsec security-association lifetime seconds 28800crypto ipsec security-association lifetime kilobytes 4608000crypto dynamic-map dyno 10 set transform-set transcrypto map vpn 20 ipsec-isakmp dynamic dynocrypto map vpn interface outsidecrypto isakmp enable outsidecrypto isakmp policy 10 authentication pre-share encryption 3des hash sha group 2 lifetime 86400no crypto isakmp nat-traversal
[code]....
If i try to connect with a Windows 7 Client (NOT behind NAT) I get the Error 691.
I see that Phase 1/2 are working with debug:
Dec 22 16:32:16 [IKEv1]: Group = DefaultRAGroup, IP = XXXXXX, PHASE 1 COMPLETED
Dec 22 16:51:25 [IKEv1]: Group = DefaultRAGroup, IP = XXXXXX, PHASE 2 COMPLETED (msgid=00000001)
Then I see this "Error":
Dec 22 16:51:26 [IKEv1]: Group = DefaultRAGroup, IP = XXXXX, Session is being torn down. Reason: L2TP initiated
I don't understand why it doens't work....I tried many templates from the net but nothings works.
I have added an ASA 5510 to my network between the Internet and a Windows 2008R2 server running ForeFront TMG. Before the ASA was added, vpn clients using Microsoft Windows 7 vpn client using L2TP/IPsec connected to our vpn. After ASA was added, clients can no longer connect. I would like to know how to configure the ASA to forward the vpn requests to the ForeFront TMG server for authentication and access to internal network resources. Mail is forwarded appropriately through the ASA to internal mail server and Internet access for LAN users works just fine.
Topology:
ASA 5510 (outside interface is ISP IP address, inside interface is 192.168.1.1)................Forefront TMG (outside nic 192.168.1.2, inside nic is LAN gateway IP address).
I have altered the registry key of the client vpn pc's per Microsoft Technet URL
I’m configuring a L2TP IPSEC VPN on a 5505 asa so that windows 7 clients can natively connect. It connects correctly during Phase 1 and 2, but I can’t ping anything or access resources on the internal network. This is my first time working with an ASA.
Master# sh run
: Saved
:
ASA Version 8.2(2)
!
hostname Master
domain-name service.local
[code]....
we have made migration from CISCO 2821 to ASR1002-X.Cisco router is used as LNS for our ADSL links, using L2TP protocol. On 2821, everything worked fine. Migrating with same config on ASR1002-X, everything worked except L2P sessions.
We wanted to debug but no debug is displayed about L2TP or PPP in console with commands :
- debug aaa authentication
- debug aaa authorization
- debug radius
- debus vpdn l2x-events
- debus vpdn l2x-errors
- debus vpdn l2x-packet
- debug ppp negotiation
- debug ppp authentication
We don't understand why no debug log ??? Is it a bug in IOS XE ?show vpdn session all and show vpdn tunnel all gave "%No active L2TP tunnels"
Here our configuration :
sh ver
Cisco IOS Software, IOS-XE Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 1
5.2(4)S1, RELEASE SOFTWARE (fc3)
Technical Support: [URL]
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Sat 06-Oct-12 13:03 by mcpre
[code]....
We have a Cisco ASA 5520
We are attempting to setup RRAS on Windows 2008R2 using L2TP. Server is on the inside of the network at 10.10.10.20 our ASA is 10.10.10.1 its outside interface is 68.0.0.0.3/28.
I set a static NAT rule to allow all traffic pointed at 68.0.0.4 to be directed to 10.10.10.20 and have ACLs allowing the following.
esp, ah, udp/500, udp/4500, udp/1701
Mac Clients have no issues with but windows clients seem to hang and never connect. I know the ASA configuration is somehow to blame, if I attempt to connect to LAN IP (10.10.10.20) from withn the same network every thing works fine (making sure all the Windows Issues are covered).We have 2 other IPSEC tunnels established to teh ASA from our COLO and a Satalite office, not sure if this makes it any harder.
We are setting up a new VPN from an ASA to a cisco 2801 router (behind a third parties checkpoint firewall). We seem to be almost there with the setup but the tunnel is not working correctly. I have included a debug from the 2801 router and its config and a diagram of the setup. [code]
View 2 Replies View RelatedI have setup a ASA and everything but ipsec seems to be working. I was able to use the clientless ssl but I need ipsec working. I'm at a loss. config is a little sloppy and i will be cleaning it up but would like to get this working first.
Cisco Systems VPN Client Version 5.0.07.0290
Copyright (C) 1998-2010 Cisco Systems, Inc. All Rights Reserved.
Client Type(s): Windows, WinNT
[Code].....
I'm actualy trying to bring two IPSec VPN on only one interface. I've successfully created a tunnel between Par and Barcelone and between Par and Mad. But I can't create it between Barcelone et Mad. We have a cisco ISR1921 in Mad and Barcelone, and a Netgear in Par.
Barcelone config:
crypto isakmp policy 10
encr 3des
authentication pre-share
[Code].....
i've an Cisco ASA 5510 with Security Appliance Software Version 8.0(2), in this ASA i've many L2L tunnels to this ASA, anda sometims new tunnels can't connect, the older tunnels still ok and working, yesterday this situation occured again and i've tried to clear all ipsec tunnels and try to reconnect again no one cames up again. At the time of this situation memory usage was about 78% and CPU is was around 5%. I've made a reload without changes and the situation returns to the normality.
At the time of the fail i've collect the outpu from debug crypto isakmp 255, the outpu was in the annexed file.
How to make a Cisco 881 router finally work. I have the following configuration:
Current configuration : 2964 bytes
!
! No configuration change since last restart
version 15.1
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
[code].....
As much as I understand, the VPN tunnel is active.I can access the Internet, but I cannot access anything through the VPN tunnel.
I configured my cisco client with the info from the vpn wizard and get the following error :
error in the cisco vpn client when enabling the log : Invalid SPI size (log) + reason 412 the remote peer is no longer responding (application) message I see via the ASDM-IDM : Built inbound UDP connection for interface WAN
I'll explain briefly what I'm trying to do here :
* Remote vpn with windows users having cisco clients
* Group authentication and in the asa5510 LOCAL authentication
My WAN interface contains a public ip/29 I also defined a LAN interface with security level 100 in 10.0.60.0 255.255.252.0 range the vpn dhcp range I want to attribute to vpn users : 10.0.69.0/24
Basically I want users to initiate the vpn tunnel to the public IP and be able only to access the LAN range with the 10.0.60.0/22 range
ASA Version 8.2(5)
!
hostname xxxx
domain-name xxxx
[Code].....
I have set up a remote access ipsec vpn on an asa 5520. I can connect, and ping internal ip addresses, however I cannot ping back out to the internet, and dns resolution does not work.
View 3 Replies View RelatedWe have 2 RV220W Routers installed in seperate offices. We are attempting to setup a IPSec tunnel between the two sites. So far we have been unsuccessful in getting this to work.On both sides, we are getting a successful connection established, but netiher site is recieving any packets. Both sides are transmitting packets though. We have exhausted our resources trying to figure out why.
View 4 Replies View RelatedA customer of mine has two RV082 in different locations. The "main" router is providing a gateway-to-gateway VPN tunnel, and is also used by a few road warriors for VPN access. We've had some issues with the "main" router lately, so we've decided to exchange it for a brand new device (v3). The old RV082 was a hardware revision v2 device, so I had to manually rebuild the config on the new router. The new router is working fine so far - connectivity and gateway-to-gateway VPN are fine. IPsec Client VPN, however, doesn't work at all. The config of the new router is identical to the config of the old one, IPsec Client VPN used to work fine on the old router.
The router is running the latest firmware (v4.0.4.02-tm). I've been trying to make IPsec VPN work with "QuickVPNplus ver: 1.0.6" and the "Cisco QuickVPN Client v1.4.2.1". From what I understand, both programs first connect to the routers external IP and download some sort of VPN config file. The info in that file is then used to create the actual connection. The problem is that the config file is invalid. It contains HTML code instead of config data. This is the code: "<HTML><HEAD><meta http-equiv="refresh" content="0; URL=/cgi-bin/welcome.cgi"></HEAD><BODY></BODY></HTML>". The URL is the same I see when logging in to the admin interface of the router. The Cisco client tells me in its "wget_error.txt": "rwConnStart message=All 1 wget requests did not return a valid vpnserver.conf". Both clients connect to the router fine, and the config download itself is working - only the returned data is invalid.
I've already tried lots of stuff to make the problem go away - enabling/disabling the firewall, VPN passthrough options, and other things. I'm beginning to think that there may be a bug in the firmware I'm using, or that the way Client VPN works has changed in a way that makes connecting with a client implementing the "old" method impossible. By the way, PPTP is working fine, so we're using it as a temporary workaround. My client, however, isn't happy with this workaround - he bought a relatively expensive router so he can make use of its advanced features, after all.
Problem: IPsec VPN setup seems ok (Client to gateway) but is not responding from client requests. However, remote manage works, PPTP works.
My environment:
Hardware: RV016 10/100 16-Port VPN Router
Firmware: v4.2.1.02 (Jan 18 2012 14:10:55)
Clients: Mac OS X 10.8 (integrated VPN client) , Windows 7 (build in VPN client) OR both with NCP-E VPN client.
None of the above works with IPsec. I have tried all kinds of combinations. I don't think the problem is wether I use Group1 or Group2 or DES or AES...It must be something else... Neither of the built-in VPN (IPsec) clients in Mac OS X or Windows can be configured in an easy way. BUT the NCP-E client can. I have tried to set it up to exactly meet the settings on the server but no progress...How do I setup an IPsec VPN group so that I can use any of my VPN clients to work?
PS. I have also tried the client that comes delivered. 1- It does not work and 2- it's only available for Windows.
laptop and iPhone should get access to the private LAN
- Speedport is connected to ADSL with an dynamic IP, but DynDns is activated
- Speedport uses NAT for forwarding ports 500 and 4500 to RV042
- RV042 should be the VPN-server
- LAN should be completely able to be accessed by the VPN-client (network printer, shared folders on windows, remote access ...)
- VPN connection should use IPSec for high security
- NAT-T must been used because Speedport only forwards UDP/TCP-ports and no protocols
I have some questions:
- how should I configure the IPSec on RV042?
- which VPN client software should I use ( NAT-T an Win7 64bit must be supported ) and how should it been configured?
This scenario with VPN-server behind a router should be a common one, but I can't realise it alone.Normally I work as professional supporter for Cisco SMB (since 3 weeks), but this scenario is new for me and I don't know how to solve this problem.