Cisco VPN :: Force IPsec VPN Client To Use ASA 5520

Jun 24, 2012

I have made the following change to my ASA 5520 using ASDM to try and force VPN clients to use a self assigned certificate from the ASA. I made the following changes Remove Access VPN > Certificate Management > Identity Certificates > Add Certificate.Then I made the following change.. Remote Access VPN > Network (Client) Access > IPSec(IKEv1) Connection Profiles > Connection Profile > Edit > IKE Peer Authentication > Pre Shared key and pointed the identity certificate to the one I created in the step above.Having made this change I am still able to VPN without a certificate configured in authentication settings.I was expecting that the VPN would attempt to issue the self assigned cert to client machine?

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Cisco VPN :: Force Use Of NAT-T On IPSEC L2L Tunnel

May 4, 2011

can I force an IPSEC L2L tunnel to use NAT-T encapsulation no matter what? Automatic detection says none of the endpoints are behind NAT. I know I can disable it by the "crypto map XXX set nat-t-disable" command, but I want the exact opposite.
I have a very strange issue where asynchronos routing is making my life as a technician very hard.
A side question; Can I do something about an ISP that is policy-base-routing its ESP traffic (and/or translating it)?
ASA5505 ===>===>===> ISAKMP traffic ===>===>===> ASA5510                                                        (traffic source IP:


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Cisco VPN :: ASA5505 / WebVPN - RDP Plugin Cannot Force Java Client

Jun 22, 2010

I have just configured a ASA5505 running 8.2.2 as a webvpn server for clientless VPN connections.
I need to setup a particular bookmark for a RDP session which forces the use of the java client for those who can't seem to get the ActiveX control working for some reason or another (virus scanners/firewalls/scerutiy policies etc).
I created a bookmark as follows, but it always tries to connect with the ActiveX control first when logging on from an IE client.

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Cisco Firewall :: Force ASA 5520 Traffic Out Specific Interface

Jun 1, 2011

I'm trying to route all default traffic from my production environment through my ASA 5520 on the "outside2" interface.The 5520 has a site to site VPN to our DR site on the "outside/inside" interfaces via one ISP. On another ISP, interfaces "outside2/inside2" go to the internet.
When I make my 3750 stack default route for the inside2 interface IP I cannot get to the internet. When it is pointed to the inside interface on my 5505, I can.
I get the following errors when I try to open from a production server:Why is the 5520 trying to use the "outside" interface instead of the "outside2" interface to go out?

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Cisco Switching/Routing :: Configure 3560 To Force Client To Get IP By DHCP Relay Server?

Jul 30, 2012

How to configure cisco 3560 to force the client only can get ip by dhcp-relay server ?
The company i am working in has 5 vlans which have been set an lay-3 switch(3560), uses the dhcp-relay server .(in svi configuration: ip helper-address X.X.X.X) well , that works ok~
Now , I got my problem: I need to force the client only can get ip by dhcp-relay server, that means if anyone set static IP manunally , he can't really access to anywhere (to provent anyone set static IP with malignancy )
I know if a h3c router , how to set this configuration n svi configuration : dhcp relay security address-check enable )
the how to configure on a cisco 3560 ?

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Cisco VPN :: 5520 Should SSL VPN Performance Be On Par With IPSEC

May 22, 2010

Currently running a pair of 5520 as VPN routers. running 8.0.3, been using only Anyconnect SSL VPN for end users. These boxes do nothing else except serve VPN clients.However, recently we tried testing some IPSEC clients and are realizing that the Anyconnect SSL VPN clients is about 10x slower than the IPSEC client.From my house, downloading either CIFS or FTP, I can pull pretty close to 1.0mbps, while using Anyconnect, I pull 0.1mbps. What could be causing this slowdown? Should SSL VPN performance be on par with IPSEC? Clients all are windows 7, 64 bit. and the testing is being conducted on the same device.

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Cisco :: Routing And IPSec On ASA 5520

Nov 19, 2011

The network design is a hub and spoke using a carrier provided MPLS network with a ASA 5520 at the hub that has a IPSec tunnel to another part of the company.This configuration has worked for sometime now (long before I came to the company a couple of months ago).The thing that does not make sense to me is that the those networks out on the spokes did not have a route to the inside interface network of the ASA. With the way this MPLS works, if a network is not in the MPLS network routing tables it will not pass that network. The network was not in the MPLS network, nor was it in any of our edge routers connecting to the MPLS.
These hub networks did have routes both in the MPLS and edge devices for the networks on the other side of the IPSec tunnel and have been reaching them for some time.So what I am trying to understand is how it is possible for these hosts that have no route to the ASA inside interface network, but do have routes to the remote networks, how are they able to successfully pass that traffic? There are no NAT devices between these WAN hosts and the ASA.

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Cisco VPN :: ASA 5520 IPsec VPN Performance?

Feb 17, 2011

I have a client that uses the ASA 5520 as both a firewall and VPN termination device.  Day to day VPN usage is 30-50 users and the memory (512 MB) is typically at 50% while the CPU is mostly under 30%.  I've suggested the RAM be upgrade to 1GB.The client would like to add a large block of VPN users which could see 250-300 concurrent users.  What kind of a system resource hit should the expect with this level of load?

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Cisco VPN :: Android / IOS IPSec Client For RV180

Oct 29, 2012

I currently have an RV180 in a small business set-up and curently being accessed remotely by laptops (Quick VPN) and Ipads/Android ICS tablets (PPTP).  All is working well but I've become concerned about the security risks of PPTP and would like to shift the tablets to IPSec.

1) For a  small business are the PPTP risks real?

2) What are the alternatives for Android ICS?  I can't find a Quick VPN client for Android, has anyone seen one.

3) I can't get the core IPSec VPN in Android to connect to the RV180?  Is this possible?  Has anyone succeeded?

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Cisco Routers :: RV180 And IPSec VPN Client

May 22, 2012

Does RV180 router support client VPN connections using regular Cisco VPN client? Datasheet says it works with Quick VPN client.

If regular non-Quick client is not supported, can both clients coexist (= be installed simultaneously) on the same PC?

Does Quick VPN client support split tunneling?

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Cisco VPN :: IPSec Client Connection Through ASA 5510?

Mar 28, 2013

I've got random connection issue when I try to connect to a VPN gateway through an ASA 5510 (IPSEC client ->ASA 5510->VPN Gateway).
When the tunnel is coming up, those two lines appears in the captured traffic on the internal interface :
<private internal IP>.500          > <destination IP>.500:  udp 541
<public external IP>.500 > <destination IP>.500:  udp 541
When it's not coming up, the port nuimber for the public IP is not 500
(private internal IP).500  >  (destination IP).500:  udp 541
(public external IP).442 >  (destination IP).500:  udp 541
I don't understand why sometimes the port for the public external IP is 500 and sometimes not.

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Cisco VPN :: 2600 Router As IPSec Client

Jan 16, 2013

Currently I'm using Cisco VPN client software to connect to a remote IPSec server on the workstations. I want to to configure IPSec client on Cisco 2600 router which connects to the remote IPSec server so the workstations can access VPN subnet without using VPN software. how to configure IPSec client on the router?

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Cisco VPN :: SR520 / IOS IPSec With VPN Client Configuration?

Apr 12, 2011

I am having a tough time getting my VPN client to reach any devices on my office network. I have a Cisco SR520 configured with IPSec to terminate Cisco VPN client sessions. The client is able to connect successfully. I get a username/password challenge, and then I get assigned a pool IP address on the client computer. So the VPN connection looks good at that point but I cannot reach any devices in the office network.

Config below:
Building configuration... 
Current configuration : 8066 bytes
! Last configuration change at 06:14:35 PDT Wed Apr 13 2011 by admin
! NVRAM config last updated at 06:17:11 PDT Wed Apr 13 2011 by admin
version 12.4


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Cisco Routers :: SA520W IPSec With VPN Client

Dec 14, 2009

I have a problem to configure a IPSEC VPN on the SA520W ( 1.0.39) with Cisco VPN Client ( In the logs are following error:
ERROR:  Could not find configuration for x.x.x.xERROR:  Could not find configuration for x.x.x.xERROR:  Could not find configuration for x.x.x.xERROR:  Could not find configuration for x.x.x.x

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Cisco VPN :: IPSec Client Error Through ASA5540?

Feb 27, 2013

We have an ASA 5540 successfully using SSL VPN Client Tunnels with no issues, and have been attempting to build the ability for IPSec Clients to connect as well.  I have the authentication working, yet cannot complete the establishment of the tunnel for the client.  The client receives an error of "Secure VPn Connection terminated by Peer, Reason 433: (Reason not specified by Peer)".  In the log on the client, I see the following when the connection drops:
(this is after successful connection, split tunnel setups, then this set of items appears in the log)
377    09:29:08.071  02/28/13  Sev=Info/4    IKE/0x63000014
 378    09:29:08.071  02/28/13  Sev=Info/5    IKE/0x63000045
RESPONDER-LIFETIME notify has value of 86400 seconds

I see the message where it terminates and where is says 'Account Start Failure' but I can't figure out what that is indicating..

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Cisco VPN :: IPSEC VPN Group Authorization ASA 5520

Feb 15, 2011

Options a user may reside in Austin, TX and I want the user to utilize the local proxy (i.e. texasproxy:8080). We currently only require the user to enter the RSA passcode and username to authentication (RSA/AD username are identical). Is there a way to have the user authenticate via RSA and have the user's AD group membership (TX) assign the user the specific IE proxy settings? We are utilizing an ASA 5520 on 8.2, but we are willing to upgrade to newer IOS or even consider anyconnect to resolve this issue.

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Cisco VPN :: ASA 5520 / Domain Based IPSEC VPN

May 28, 2012

Currently we are having a 2 ISP for Internet. Need to achieve redundancy for IPSEC VPN using the domain.

Requirement :Will configure a domain and assign two public IP address from 2 service providers. Will set the priority for the public ip address and do the manual change during the ISP failure.We will provide the domain name to the clients to setup the IPSEC VPN.So incase of failure by one ISP, we will change the priority in the domain to point to the availble address.So that we can reduce the downtime and no need of configuring new IPSEC VPN tunnels.

Question :Whether we can achieve this in Cisco ASA 5520.Or do we have an alternate solution to overceome this solution.

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Cisco VPN :: Anyconnect And IPSEC Vpn Coexist On ASA 5520?

Sep 8, 2011

When I try to add CAS to CAM a cannot choose a OOB Virtual Gateway or OOB Real-IP Gateway, because these operation modes are absent  in Type list.What can be reason it?

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Cisco WAN :: 871 / 5520 - L2L IPSec Tunnel Between Two Routers

Apr 4, 2011

Here is the situation: A CISCO871 router is configured to establish an IP SEC tunnel with a CISCO ASA5520. The configuration is OK about that. I wish to configure the same CISCO871 in order to establish a LAN-to-LAN IP sec Tunnel with another CISCO871 at the same time in order to reach private network. So, I have followed the Cisco procedure Document ID: 71462 "LAN-to-LAN IP sec Tunnel Between Two Routers Configuration Example"; it works, I can reach the peer private network BUT ONLY when the IP SEC tunnel with ASA is not established.
It seems to be a routing problem...I don't find how to configure to make both tunnels up and functional at the same time.

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Cisco VPN :: Asa 5505 - Connect From IPad With IPSec Client

Jan 27, 2013

Got some issues when setting up IPSEC/VPN on the asa 5505. I want to connect from the ipad with the built in IPSec client..Get these errors when i run the debug crypto isakmp.

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Cisco VPN :: Remote IPSec VPN - Windows 7 Client And ASA 5505?

Dec 20, 2011

I have difficulties with configuring Remote IPSec VPN with Cisco ASA 5505 and Windows 7 native VPN client. My client PC gets VPN pool IP address, and can access remote network behind ASA, but then I lose my internet connectivity. I have read that this should be an issue with split tunneling, but I did as it is told here and no luck.On Windows VPN Client settings, if I uncheck "use default gateway on remote network" I have internet connectivity (since client is using local gateway), but then, I cannot ping remote network.In log, I see this warnings of this type:Teardown TCP connection 256 for outside: to outside: duration 0:00:00 bytes 0 Flow is a loopback (cisco)I have attached my configuration file (without split-tunneling configuration I tried). If you need additional logs I'll send them right away.

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Cisco VPN :: Configuration IPSec Client At ASA 5505 Version 8.4

Feb 8, 2012

I want to configurate cisco ipsec vpn client at asa 5505. At my asa the software version is 8.4. Any link or some material to config ipsec vpn client at asa 5505 version 8.4.

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Cisco Routers :: RV082 V3 - IPsec Client VPN Not Working

Aug 29, 2011

A 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.

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Cisco VPN :: 1921 - IOS L2TP IPSec With Windows VPN Client

Apr 7, 2013

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 dport 500 sport 987 Global (N) NEW SA
*Apr  8 10:56:47.018: ISAKMP: Created a peer struct for, peer port 987
*Apr  8 10:56:47.018: ISAKMP: New peer created peer = 0x3296C24C peer_handle = 0x80000068

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Cisco Firewall :: Asa 5520 No Ipsec Involved With Office 3

Mar 2, 2013

I have two ASA 5520 units, both running version 8.3(2) code.  Among many other uses, they have an IPSec tunnel between them to link office 1 and office 3 together.  Office 2 does exist, and is connected to a different port on the ASA in office 3; there is no IPSec involved with office 3.

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Cisco VPN :: ASA 5520 IPSec DNS And Internet Access Not Working?

Jun 26, 2011

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. 

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Cisco VPN :: ASA 5520 8.4.1 IPSec VPN No Matching Connection For ICMP

Jun 23, 2011

I am trying to set up remote access vpn on an asa 5520 running 8.4.1.  I have the ipsec group, policies, and ip pool set up.  When I try and connect with the cisco vpn client I see the following in the logs.  Deny icmp src outside: dst outside: (type 3, code 3) by access-group "acl_inbound".  Do I need to put in some firewall rules to allow this traffice so that the VPN can connect?

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Cisco VPN :: 5520 ASAs - IPSec VPN Clients Not Being Able To Connect

Aug 25, 2011

I am currently having some problems on our 5520 ASAs. The problem is the IPSec VPN clients not being able to connect. We have had an issue twice this week where this happened. Earlier in the week we had folks not able to sign in, but some folks who were connected already stayed connected. The ASAs had been up for 200+ days and no changes have been made to it recently. At that point I had to reload the ASAs so users could start signing back in to it. Today we had a similar issue, but I didn’t have to reload the ASAs. The issue‘resolved’ itself. The VPN clients are getting Error code: 433 and the ASAs are getting Reason: Peer Address Changed when this occurs.
ASA5520, 2048 MB RAM, CPU Pentium 4 Celeron 2000 MHz version 8.3.2.

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Cisco VPN :: ASA 5520 IPSec Overlap - How To Route Traffic

Nov 13, 2011

We have multiple vpn tunnels coming to our cisco asa 5520 , the problem is that when we create another tunnel with the same network as another network on the firewall , it does not know how to route the traffic to which interface or sub interface.

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Cisco VPN :: 5520 Are RA IPSec And SSL VPN Ports Allowed By Default

Mar 27, 2013

We have set of PC's who will be connecting either RA IPsec or SSL VPN to another location. On our site, our perimeter device is an ASA 5520 8.2(3). The interfaces on this ASA doesn't have Access Lists applied, so from what I understand, there is a default policy applied globally (class-default). Now my question is: If we set up vpn clients on our pc, are the ports used by the clients to the VPN server allowed by default or do we need to tweak the class-default?

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Cisco VPN :: 5520 - How Much Traffic Pass Through Into IPSec In ASA Firewall

Mar 20, 2013

How can I see the quantity of traffic that is passing through into an IPSec VPN in a ASA 5520.

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Cisco VPN :: ASA 5520 - L2TP / IPSEC Not Working In Windows XP / 7

Mar 25, 2011

i 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 =, IKE_DECODE RECEIVED Message


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Cisco VPN :: 5520 BUN K9 Supports Data Compression On VPN IPsec

Sep 10, 2012

I would like to know if the ASA 5520 BUN K9 supports the data compression on VPN IPsec.

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