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:214.67.39.42 dst outside:24.252.51.73 (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 :: ICMP Through ASA 5520?

Jan 26, 2012

I cannot seem to ping between devices on two networks hanging off a 5520 unless I use the same-security interface command. I have the relevant ACL's set up between the interfaces, but it just doesnt work unless I have that command in - if I use that command, it bypasses the ACL.

Config

interface GigabitEthernet0/0.224
description NMS
vlan 224
nameif NMS
security-level 100
ip address 10.11.120.225 255.255.255.240[code].....

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Cisco VPN :: ASR901 Support IPsec - Cannot Encrypt ICMP Packet Back

Apr 25, 2013

I'm trying to setup a GDOI based IPsec connection between a cisco AS901 (advanced Metro lic - asr901-universalk9-mz.152-2.SNI ) and a 7606-S.What I see is that the ASR901 is capable of decrypting the IPsec packet but I cannot encrypt the ICMP packet back, so the question is if the AS901 can support IPsec in software. What I could not find in the docs on CCO. [code]

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Cisco Firewall :: ASA 5520 Removed Icmp Inspection From Default Policy-map

May 10, 2012

i have removed the icmp inspection from my default policy-map in my ASA 5520,now i could not able to ping to 4.2.2.2 from my LAN even though i have configured an ICMP Access-list in my asa like ,but I can't ping 4.2.2.2 for testing the Internet connectivity,what shall i do to allow only my self as admin to ping outside?
 
-icmp permit host 192.168.60.60 echo
-icmp permit host 192.168.60.60 echo-reply

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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 :: 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 :: 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 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 :: 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 = 59.161.130.13, IKE_DECODE RECEIVED Message

[Code]......

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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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Cisco VPN :: ASA 5520 - IPSec Remote Access VPN Design

Mar 7, 2011

Is there any documents that I can use to design an IPSEC remote access solution using 2 data centers . One data center is primary and other one is secondary. The VPN is terminated in ASA 5520. End users using cisco client.

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Cisco Firewall :: Setup Of IPSec Passthrough On ASA 5520

Mar 28, 2012

I am working on IPSec Passthrough on an ASA 5520, with version 8.3, and ASDM 6.3. Currently I have a requirement for users in my internal network (10.10.249.128 / 25) to be able to connect to external IPSec VPN servers.
 
So I created a network object with 10.10.249.128 / 25, and used dynamic PAT to translate the source ip address to the external internet facing outside interface:

I then added the following rules on the inside-in ACL: However troubleshooting shows that isakmp is passing through the firewall, but esp and ah is not.
 
For isakmp:
 
For ESP:Seems like the nat rule is drawing my ESP traffic,

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Cisco VPN :: 5520 / IPSec VPN Won't Initiate From Remote Site

Sep 8, 2012

I have a site-to-site VPN configured between a 5520 at our data center, and a 1700 at a client's site for site-to-site connectivity.  What I've noticed is, is that the VPN can only initiate from my Data Center, never from the client router.  I can telnet into the router and start a telnet session sourced from the "inside" interface and it fails, yet I can see the NAT translations get created in the state table that should match the crypto-map.  However, if I ping a host on the inside of the remote LAN from my workstation (behind the 5520) to bring the tunnel up, and run the exact same command on the client router once the tunnel is up, it works.  Right now I have a continuous ping running from my workstation to keep the tunnel up, but obviously that's not the best solution
 
I had to modify this config to NAT the LAN addresses at the client to a non-overlapping subnet, so anything coming from 128.1.0.0/16 should be NAT'd to 192.168.105.[50-200]/24.  I've also got two static NATs for inbound access from the data center and those seem to work fine.
 
Current configuration : 2787 bytes
!
! No configuration change since last restart
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption

[code]...

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Cisco VPN :: ASA 5520 - ASDM Shows Lot Of IPsec VPN Sessions In GUI

Jan 20, 2013

I have upgraded my ASA 5520 til version 9.1 with ASDM version 7.1. After the upgrade ASDM shows a lot of IPSEC VPN-sessions in the GUI that i cannot see from the ASA. Right now the GUI says that I have 28 IPSEC-sessions while the output from "show vpn-sessiondb l2l" shows the expected 4 tunnels and the output from "show vpn-sessiopndb remote" shows 0 as expected. (I do not use IPSEC from remote users).

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Cisco VPN :: 5520 - Monitoring IPSec Tunnel Bandwidth Utilization

Sep 8, 2011

We have a Cisco ASA 5520 supporting multiple VPNs - both remote-access  and Lan-to-Lan.  We would like to monitor the bandwidth utilization of the IPSec Lan-to-Lan tunnels.

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Cisco VPN :: 5520 Remote Access VPN (IPSec) Configuration Using FQDN

Apr 29, 2013

We have dns server(only Internal IP) inside our network, right now we have configured Remote Access VPN using Public IP and we connect it using the same Public IP. I need to use FQDN instead using Public IP. What is the configuration for this.
 
-Device : ASA 5520
-Configuration Type : IPSec

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Cisco Firewall :: ASA 5520 - IPSec Tunnel Without Private Network

Apr 11, 2013

I'm trying to achieve a site-to-site ipsec tunnel to a Cisco ASA 5520.  Most examples feature the ASA with a public interface that terminates the tuennel and a private network on another interface that the tunnel interacts with.  Where my scenario differs is that the interface that accepts the tunnel is part of a public /29 network where I want the remaining hosts on that subnet to be able to route thrugh to the other end of the tunnel.  My tunnel gets established, but any attempts to route via the IP assigned to that one interface result in the ASA rejecting traffic. If so, what configuration options should I consider?

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Cisco Firewall :: Command To Check IPSEC Tunnel On ASA 5520?

Jan 7, 2013

Need to check how many tunnels IPSEC are running over ASA 5520.Tried commands which we use on Routers no luck?

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Cisco VPN :: ASA 5520 Resets All Clients Sessions When Create New Ipsec

Oct 26, 2011

We have asa 5520 with 8.4(2) release and asdm 6.4(5). When we create new ipsec connection profiles (by ipsec wizard for example), ASA reset all vpnclients sessions active. Now we need to create new profiles, but we have 170 vpnclients sessions active, so we cant'.

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Cisco Firewall :: 5520 - Restrict Remote IPSec Vpn From Company Pcs Only?

Aug 19, 2012

we wish to implement IPSec remote access vpn with the condition that employees should be able connect to this vpn only from company issued laptops and not from any other computers. I assume using client side certs is one of the ways to do it but I couldn't find any doc that was really useful. Cisco's documentation seems quite obscure. We are on 8.1 (5520)

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Cisco VPN :: ASA 5520 / IPSec Over TCP - IKE Initiator Unable To Find Policy?

Jun 9, 2012

I've tried to set up IPSec over TCP with a VPN-Client V5.0.07.0440 on Win 7 64b to my ASA 5520 (Version 8.2(2)16) regarding to
 
[URL]
 
IPSec over TCP activated at the ASA
crypto isakmp ipsec-over-tcp port 10000
 
and in the transport tap of the VPN connection 'enable transport tunneling' with IPSec over TCP an port 10000 instead of 'IPSec over UDP' The connect timed out with error code 412 And this is my log from the ASA:
 
%ASA-7-710005: TCP request discarded from 178.x.x.x/53225 to INTERNET:212.x.x.x/10000
%ASA-3-713042: IKE Initiator unable to find policy: Intf INTERNET, Src: 212.x.x.x, Dst: 178.x.x.x
%ASA-7-710005: TCP request discarded from 178.x.x.x/53225 to INTERNET:212.x.x.x/10000
%ASA-3-713042: IKE Initiator unable to find policy: Intf INTERNET, Src: 212.x.x.x, Dst: 178.x.x.x
 
I don't have a clue what's here missing.I have static crypto maps for the L2L tunnels and the default dynamic crypto map for the VPN clients which come over NAT-T
 
crypto map INTERNET_map 65535 ipsec-isakmp dynamic SYSTEM_DEFAULT_CRYPTO_MAP
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 match address INTERNET_cryptomap_65535.65535
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set pfs
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set transform-set ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA ESP-3DES-MD5
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set reverse-route

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Cisco VPN :: ASA 5520 - IPSEC Tunnel / Error When Ping Protected Network

Nov 2, 2009

On my ASA5520 I am trying to do a IPSEC tunnel between two sites. When I ping the protected network on the other side I get this when debugging IPSEC:
 
IPSEC(crypto_map_check): crypt o map man map 20 does not hole match for ACL man1
 
Not too sure what this means...

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Cisco :: CME Matching The Dial Peer?

Dec 7, 2012

I believe that the Cisco Unified Communications Manager Express matches the outbound VoIP dial peer digit-by-digit, because:

1. when using the debug command it shows how it works digit-by-digit till it match a pattern

2. It says in the study guide ( If a match is found, the router immediately processes the call - chapter 6) so I understand its not en bloc

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