dynamic ip vpn configuration

Hey friends

I'm just CCNA, I have a project to set up vpn site to site and remote access on the pix firewall and cisco routers 3000... but the problem is that the main site has static ip address while other sites have dynamic IP addresses. can anyone guid me is possible vpn if

1 - both sides have dynamic ips.

2 - a site were static and the other dynamic.

Hi Adam

Please see this:

How to configure a VPN tunnel to static-dynamic between a router with a dynamic IP address and an ASA

Dynamic IPsec Tunnel between a statically addressed ASA and dynamically addressed Cisco IOS router that uses the example of Configuration of CCP

LAN-to-LAN tunnels on a concentrator VPN 3000 with a PIX firewall DHCP

HTH.

Portu.

Please note all useful posts

Tags: Cisco Security

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    --------------------

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    ---------------------

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    -------------------------
    OUTPUTS:

    *********************

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    1 peer IKE: 11.11.11.2
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    Generate a new key: no State: MM_ACTIVE

    ---------------------

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    Remote ident (addr, mask, prot, port): (172.16.10.0/255.255.255.0/0/0)
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    compressed #pkts: 0, unzipped #pkts: 0
    #pkts uncompressed: 50, comp #pkts failed: 0, #pkts Dang failed: 0
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    Sent #PMTUs: 0, #PMTUs rcvd: 0, reassembly: 20th century / of frgs #decapsulated: 0
    #send errors: 0, #recv errors: 0

    local crypto endpt. : 12.12.12.2, remote Start crypto. : 11.11.11.2

    ------------------------
    ASA2 (config) # sh crypto isakmp his

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    Total SA IKE: 1

    1 peer IKE: 12.12.12.2
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    Generate a new key: no State: MM_ACTIVE

    ------------------------

    ASA2 (config) # sh crypto ipsec his
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    Remote ident (addr, mask, prot, port): (10.10.10.0/255.255.255.0/0/0)
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    #pkts program: 49, #pkts encrypt: 49, #pkts digest: 49
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    -------------------------

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    Attached image...

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    security-level 50
    IP 10.181.10.2 255.255.255.0

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    inside_access_in list extended access permit icmp any one
    inside_access_in of access allowed any ip an extended list
    outside_access_in of access allowed any ip an extended list
    outside_access_in list extended access permit icmp any one
    outside_1_cryptomap to access extended list ip 192.168.20.0 allow 255.255.255.0 255.255.255.0 network-remote control
    inside_nat0_outbound to access extended list ip 192.168.20.0 allow 255.255.255.0 255.255.255.0 network-remote control

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    Crypto ipsec kilobytes of life - safety 4608000 association
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    crypto ISAKMP policy 10
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    Corporate

    description of remote control-network name 192.168.20.0 Community Network
    !
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    Outside description
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    !
    interface Ethernet0/1
    Inside description
    !
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    !

    !
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    security-level 100
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    inside_access_in_1 of access allowed any ip an extended list
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    permit inside_nat0_outbound to access extended list ip 192.168.10.0 255.255.255.0 255.255.255.0 network-remote control
    pager lines 24

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    inside_access_in_1 access to the interface inside group
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    Crypto ipsec transform-set esp-SHA-ESP-3DES-3des esp-sha-hmac
    life crypto ipsec security association seconds 28800
    Crypto ipsec kilobytes of life - safety 4608000 association
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    outside_map interface card crypto outside
    crypto ISAKMP allow outside
    crypto ISAKMP policy 10
    preshared authentication
    3des encryption
    sha hash
    Group 2
    life 86400
    tunnel-group 10.181.10.2 type ipsec-l2l
    IPSec-attributes tunnel-group 10.181.10.2
    pre-shared key *.
    !

    Hi haidar_alm,

    After a quick glance to the configuration, I found an error with the vpn peer on the Community Site:

    peer set card crypto outside_map 1 10.181.1.1

    tunnel-group 10.181.1.1 type ipsec-l2l
    IPSec-attributes tunnel-group 10.181.1.1

    The public ip address of morality is 10.181.10.1.

    Correct configuration:

    peer set card crypto outside_map 1 10.181.10.1

    tunnel-group 10.181.10.1 type ipsec-l2l
    IPSec-attributes tunnel-group 10.181.10.1

    -JP-

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