ms-chap VPN question

Hello

I was just curious.  Given an ASA configured with the typical parameters of phases 1 and 2 ike, if I understand ppp-attribute with ms-chap authentication, when the xp client connects what it means that ms-chap uses the pre-shared key configured on the xp client and that 3des which was originally set on the policy of isakmp on the SAA is not used?  Or not the phases of set 1 and 2 complete ike, and then in the tunnel, the xp client sends the name of user and password with ms-chap?

Sorry me doing a little confused here comes the phase name of user and password.

Thanks in advance.

Since you speak of PPP with ms-chap as the authentication, I assume that you speak about L2TP over IPSec.

With the phase 1 and phase 2 that speaks to you, is that the IPSec part.

The PPP with ms-chap as the authentication is the part of L2TP.

So first, you will create a VPN IPSec tunnel, and once you have the established tunnel, the L2TP will be encrypted in the IPSec tunnel.

So, the part of ms-chap belongs to the L2TP authentication.

3DES is the method of encryption IPSec and pre-shared key is used by the IPSec as a method of authentication for the authentication of the peer.

Finally, user name and password is extended to the IPSec authentication and is part of the phase 1.

I hope this helps.

Tags: Cisco Security

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    hits = 4749562, user_data = 0xb2ed5ad0, cs_id = 0 x 0, reverse, flags = 0 x 0 = 0 protocol

    SRC ip = 0.0.0.0 mask 0.0.0.0, port = 0 =

    DST ip = 0.0.0.0 mask = 0.0.0.0, port = 0, dscp = 0 x 0

    Phase: 10

    Type: CREATING STREAMS

    Subtype:

    Result: ALLOW

    Config:

    Additional information:

    New workflow created with the 339487904 id, package sent to the next module

    Information module for forward flow...

    snp_fp_inspect_ip_options

    snp_fp_tcp_normalizer

    snp_fp_translate

    snp_fp_adjacency

    snp_fp_fragment

    snp_fp_tracer_drop

    snp_ifc_stat

    Information for reverse flow...

    snp_fp_inspect_ip_options

    snp_fp_translate

    snp_fp_tcp_normalizer

    snp_fp_adjacency

    snp_fp_fragment

    snp_fp_tracer_drop

    snp_ifc_stat

    Phase: 11

    Type:-ROUTE SEARCH

    Subtype: output and contiguity

    Result: ALLOW

    Config:

    Additional information:

    found 7.x.x.1 of next hop using ifc of evacuation outside

    contiguity Active

    0007.B400.1402 address of stretch following mac typo 51982146

    Result:

    input interface: cold

    entry status: to the top

    entry-line-status: to the top

    output interface: outside

    the status of the output: to the top

    output-line-status: to the top

    Action: allow

    What version are you running to ASA?

    My guess is that your two static NAT is configured above policy nat you have configured for the VPN?  If this is the case, move your above these static NAT NAT policy and you should see the traffic start to flow properly.

    --

    Please note all useful posts

  • IPhone and cisco vpn question

    All, I have an IPhone and I'm VPN'ing in a SAA with IOS 8.2.2.  I do not have vpn'ing of issues, but I have a question that is causing quite a stir here.  When I try to use names rather than IP addresses (trying to access a server or an internal Web site), the client does not receive DNS answers.  I can get to the servers via IP, but not by the name of the server.  I can use the same PCF file for my laptop, and it works fine.  Someone at - it a resolution to this scenario?  Any help appreciated.

    Add the domain name in the attributes of Group Policy: -.

    value by default-domain MYDOMAIN.COM

    Manish

  • Access remote VPN question - hairpin

    Hello, I did a search before posting this question but I have not found anything specific to my situation.

    We have our ASA5520 configured in our main office to allow remote access Cisco VPN client users to access our network.  We have a (network 192.168.1.0/24) remote desktop we have a configured on the same ASA5520 VPN IPSec tunnel that allows the use of internal users (in the main office) to access resources on the network remote (192.168.1.0) and vice versa.  The problem is that when users connect to the remote VPN access, they are not able to access the resources of the remote office network.  We created the nat0 ACL and labour, and split tunnel routing is implemented for users VPN remote network access (if I make a copy of the route on my laptop after connecting to the VPN, I see the road to 192.168.0.0/24 in my routing table).  Routing everything is in place to do this, since the IPSec VPN tunnel is up and working.  My suspicion is that the question has something to do with the consolidation of these VPN clients.

    What else needs to be configured to work?  Thank you.

    Hi Scott,.

    I have a client with a PIX 515E which allows connections to remote VPN and VPN LAN2LAN multiple connections.

    We had this problem too... so what I made in my pix was:

    TEST (config) # same-security-traffic intra-interface permits (its off by default)

    If you use ASDM go to:

    Configuration > Interfaces >

    at the bottom of this page, there is an option that says: 'enable traffic between two or more host computers connected to the same interface '.

    Check and it should work... I hope

    I await your comments...

    Kind regards.

    Joao Tendeiro

  • ASA (Active standby) site-to-Site VPN Question

    Hello

    I had the question as below

    Site A - 1 unit of VPN Netscreen firewall

    Site B - 2 units of ASA VPN firewall

    I'm trying to set up a VPN from Site to Site, but a problem with the configuration of the active standby.

    Initially, I tried Site A 1 unit Netscreen and Site B 1 unit ASA vpn site-to-site. There's no problem.

    but joins another ASA at site B and configure it as active / standby then I saw a few questions that I need help from here

    Things that confuse me.

    (1) do I need to use 2 public IP address on the SAA? (public IP for assets and the other a public IP ensures IP. it seems like a waste of the public IP address.)

    (2) link failover and dynamic failover can be configured on the same interface?

    Please help in this case, configuring VPN from Site to Site with active configuration / standby.

    just to add to this,

    just be careful when you dedicate an interface for dynamic failover, make sure that it is the highest capacity, or at least the same ability as an interface offers th

    so if you use concert for passing traffic interface uses a concert for dynamic failover port, several times we saw people using the management for steful interface when they ports of concert and they run into issues where the dynamic function does not work as expected

    You can read more here

    https://www.Cisco.com/en/us/docs/security/ASA/asa80/configuration/guide/failover.html#wp1051759

  • Gateway RV320 ping RV320 VPN question

    Hi all

    I have 3 x RV320 with the latest firmware to all configure to use VPN from gateway to gateway in a configuration of spokes and hub.

    On all RV320, I can see the connected state of the VPN tunnels. However, I can't do a ping to gateway to gateway or computer connected to each RV320. Firewall has been disabled on all RV320.

    Any help will be appreciated.

    concerning

    J

    Try the ping of the diagnosis of each rv320 page.  Recreational vehicles cannot ping between them?  If so, your tunnel is up, but something wrong with the subnet configs.

  • Planning VPN question...

    How would restrict a VPN user to specific IP addresses on the local network. I want them to be able to get to specific devices on the local network, but not all of the devices. I'm leaning towards ACL but do not know if this is the best way, and if it is how to create them. I am using a concentrator 3005.

    Thanks in advance

    Ron...

    Hi Ron

    Yes you can set up filters (ACL) 3005 concentrator.

    Please see the link for more information:

    http://www.Cisco.com/en/us/Tech/tk59/technologies_configuration_example09186a0080094eac.shtml

    Concerning

  • A connection VPN Question

    Dear,

    I have configured anyconnect on my asa and it works fine, but I can't manage the ASA it free VPN, all ideas session

    BR

    Hazem

    It is possible with the help of the command "access management". Please refer to the following documentation: -.

    http://www.Cisco.com/c/en/us/TD/docs/security/ASA/asa82/configuration/guide/config/access_management.html#wp1064497

    Make sure you have good split tunnel and free of nat-access list for traffic destined for the interface of the ASA.

    Kind regards
    Dinesh Moudgil

    PS Please rate helpful messages.

  • Multi frame ASA SSL VPN Question

    Hello

    We have a pair of firewalls, we do multiple contexts on clients.  We have recently updated their and have been using the newly Anyconnect customer support.  This all works fine but I feel I'm missing something.  If the customer does not have the anyconnect client already how do get?  Normally, you go to the web page and it will download the client, but all I get is "Clientless VPN is not supported in context mode Multiple." which is good, but how is the customer supposed to to get the customer in the first place?

    Any information would be helpful.

    Chris L.

    Hi Chris,

    The AnyConnect WebLaunch feature is not supported in ASA running on multi-contexte mode.

    There is a demand of improvement that has been opened to allow this as other characteristics while ASA in multi mode context. Here is the link, you can refer:

    https://Tools.Cisco.com/bugsearch/bug/CSCuw19758/?reffering_site=dumpcr

    Kind regards

    Aditya

    Please evaluate the useful messages and mark the correct answers.

  • L2L IOS VPN question

    Hello

    I created a vpn between two routers in two different sites. The VPN works well, but I noticed something that I can ping from peer1 at peer2 however the tunnel although the ACL of the interesting traffic allows no icmp between two counterparts, it is configured as follows:

    access-list 120 allow ip 10.10.10.0 255.255.255.0 192.168.2.0 255.255.255.0

    access-list 120 allow ip 1.1.1.1 host 2.2.2.2

    No icmp is allowed, but the icmp traffic is encapsulated, encrypted, and through the tunnel, why?

    Hello moahmed1981,

    When you configure access-list for IPs, so it includes ICMP, TCP, and UDP, therefore, it is expected that you will be able to ping across the tunnel.

    If you want to change this, please configure the VPN filter to prevent the ping to the vpn tunnel.
    Here's a doc for your reference:-
    https://popravak.WordPress.com/2011/11/07/Cisco-IOS-VPN-filter/

    Kind regards
    Dinesh Moudgil

    PS Please rate helpful messages.

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