vpn NATting traffic

I have my vpn set up exactly as I need.  Users can connect to the vpn and get an IP of 172.16.17.0/24.  These users can access then machines hidden behind the asa on the private interface 172.16.16.1/24.  Users on the 172.16.16.1 interface can also access any machine not on the private through the router using nat interface.  What I can not understand how is allowing vpn also users to access any machine not on the private via NAT on the router interface. Help would be appreciated.

See the road from ciscoasa #.
Gateway of last resort is a.b.c.1 to network 0.0.0.0

C 172.16.16.0 255.255.254.0 is directly connected, igbprivate
S 172.16.17.20 255.255.255.255 [1/0] via a.b.c.189, igbpublic
C 255.255.252.0 a.b.c.0 is directly connected, igbpublic
C 192.168.1.0 255.255.255.0 is directly connected, management
S * 0.0.0.0 0.0.0.0 [1/0] via ak.b.c.124.1, igbpublic

access list

access list 101 line 1 permit extended ip 172.16.16.0 255.255.255.0 172.16.17.0 255.255.255.0

in the running-config nat statements

interface of global (igbpublic) 1
NAT (igbprivate) 0-access list 101
NAT (igbprivate) 1 0.0.0.0 0.0.0.0

If your VPN users connect on the side of the SAA Public then I still think Hairpining is what you should look into. It is very similar to my problem in which I want to VPN users to access internet through VPN. Packets from the VPN users must enter the public interface and return directly. I hope I understand this.

Tags: Cisco Security

Similar Questions

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    Thank you best regards &,.

    Ramanantsoa

    Thank you, and since you are just 1 IP 1.1.1.11 Polo, the traffic can only be initiated from your site to the remote end.

    Here is the configuration of NAT:

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    In addition, the ACL crypto for the tunnel from site to site should be as follows:

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    Hope that helps.

  • After VPN NAT

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    output

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  • VPN / Natting issue - connectivity to 3rd Party Partner Site

    Hello

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    Select this option.

    Hello

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  • Site to Site VPN of IOS - impossible route after VPN + NAT

    Hello

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    Hi Jürgen,

    First of all, when I went through your config, I saw these lines,

    !

    interface Vlan2

    IP 192.168.1.1 255.255.255.248

    !

    !

    IP route 192.168.2.0 255.255.255.0 192.168.1.254

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    With 255.255.255.248 192.168.1.1 and 192.168.1.254 subnet will fall to different subnets. So I don't think you can join 192.168.2.0/24 subnet to the local router at this point. I think you should fix that first.

    Maybe have 192.168.1.2 255.255.255. 248 on the router connected (instead of 192.168.1.254)

    Once this has been done. We will have to look at routing.

    You are 172.31.0.2-> 192.168.1.11 natting


    Now, in order for that to work, make sure that a source addresses (192.168.1.11) NAT is outside the subnet router to router connected (if you go with 192.168.1.0/29 subnet router to router, with 192.168.1.1/29 on the local router and 192.168.1.2/29 on the connected router as suggested, it will be fine). So in this case 192.168.1.8/29 to the subnet that your NAT would be sources fall.

    Have a static route on the router connected (192.168.1.2) for the network 192.168.1.8/29 pointing 192.168.1.1,

    !

    IP route 192.168.1.8 255.255.255.248 192.168.1.1

    !

    If return packets will be correctly routed toward our local router.

    If you have an interface on the connected rotuer which includes the NAT would be source address range, let's say 192.168.1.254/24, even if you do your packages reach somehow 192.168.2.0/24, the package return never goes to the local router (192.168.1.1) because the connected router sees it as a connected subnet, so it will only expire

    I hope I understood your scenario. Pleae make changes and let me know how you went with it.

    Also, please don't forget to rate this post so useful.

    Shamal

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    I need to configure NAT on a VPN tunnel to accomplish the following. I already have the tunnel upward and running just need to confirm my NAT config.

    ASA 8.2 Version running (5)

    I only need to set up A

    The internal subnet to site A is 172.30.6.0/24 and I need NAT this subnet to 172.31.183.0/24 when the destination subnet is 172.31.255.128/25

    So here's what I thought.

    Policy NAT 172.30.6.0/24 to 172.31.183.0/24 the translation when the destination is 172.31.255.128/25.

    Public static 172.31.183.0 (inside, outside) - CBC-NAT-TRANSLATION access list

    CBC-NAT-TRANSLATION scope ip 172.30.6.0 access list allow 255.255.255.0 172.31.255.128 255.255.255.128

    Then I would need that

    Public static 172.31.255.128 (exterior, Interior) 172.30.6.0 netmask 255.255.255.0

    That sounds about right.

    Thank you

    Mike

    Mike

    As I said that I did not use a network with a static NAT strategy, so I don't know if the host part of the IP address matches the host Party in the range NAT if you see what I mean.

    It could, but it cannot be a concern for you anyway. You would need to watch the xlate table once you make the connection to know for sure.

    In addition, it means all devices in this subnet may send packets to each device in the remote subnet but once again can not be a cause for concern.

    But apart from that, Yes, your config seems fine for me.

    I try with the first beach and establish a connection and then if it works check the xlate dashboard to see exactly what IP he chose.

    Jon

  • ASA 8.3 - SSL VPN - NAT problem

    Need help to find how to configure anyconnect VPN with VPN client using a NAT networking internal.

    There are many items on the side - how to disable NAT for vpn pool.

    I need to create the gateway VPN to the complex international lnetwork, vpnpool is out of range of regular subnet of that network, so it's going to be questions witout NAT routing.

    I so need to vpn clients connected to be PATed to . The problem is that there is also a dynamic to PAT rule for the ordinary acccess Iternet which translates as 'rules NAT asymmetry... "error.

    Create two times different NAT rules and moving them on up/down makes no difference. There are also some hidden rules of vpn setup :-(that could not be seen.

    V8.3 seems is destroying trust in Cisco firewall...

    Thank you.

    Stan,

    Something like this works for me.

    192.168.0.0/24---routeur--172.16.0.0/24 ASA-= cloud = host. (the tunnel he get IP address of 'over' pool, which is also connected to the inside)

    BSNs-ASA5520-10 (config) # clear xlate
    INFO: 762 xlates deleted
    BSNs-ASA5520-10 (config) # sh run nat
    NAT (inside, outside) static all of a destination SHARED SHARED static
    !
    NAT source auto after (indoor, outdoor) dynamic one interface
    BSNs-ASA5520-10 (config) # sh run object network
    network of the LOCAL_NETWORK object
    192.168.0.0 subnet 255.255.255.0
    The SHARED object network
    172.16.0.0 subnet 255.255.255.0
    BSNs-ASA5520-10 (config) # sh run ip local pool
    IP local pool ALL 10.0.0.100 - 10.0.0.200
    local IP ON 172.16.0.100 pool - 172.16.0.155
    BSNs-ASA5520-10 (config) # sh run tunne
    BSNs-ASA5520-10 (config) # sh run tunnel-group
    attributes global-tunnel-group DefaultWEBVPNGroup
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    If I get your drift... bypass inside and outside is not really necessary on Cisco equipment as it should work straight out of the box via the proxy arp, but I'm not face or solution providers for remote access.

    Marcin

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