ACS seems to forget IPs assigned to VPN connections

Hi, I hope I am posting this in the right place and give the illusion that I have a pretty good idea of what I'm talking about. Otherwise, I apologize and would be recognizing all relevant entry.

My problem is that after authenticating correctly to ACS/RSA, VPN users receive a correct of the Pool of IP in their respective IP address, but GBA seems to forget that the IP address was assigned after a while so, for example, it shows 0 assigned IP address when the firewall reports that there are 4 active connections. What will happen inevitably, is that someone will eventually get assigned to an IP address previously assigned to an already existing connection, causing 0 connectivity on the network to the VPN user.

I assume this is a failure of communication between the firewall and the ACS in terms of which connections are still alived and IPs should be available.

Can someone idea me in mechanisms to interact the ACS and the firewall with regard to connection information active any experience or knowledge with this problem or maybe?

Thanks in advance.

Thank you for the response. It is currently set for 2 hours, but I guess I'm confused as to some of the terminology in regards to it releasing IP addresses not in use.

For example, if there is a valid VPN connection for 4 hours, it seems that the ACS will recover the IP after 2 hours, so does that mean 2 hours in, the IP will get re-assigned regardless? Or is there supposed to be some mechanism in place that says the connection is still valid so the IP is kept assigned beyond the 2 hour period?

Thanks again.

Hello

I do not think that there is a mechanism if ACS provides to the client the ip address, but yes, you can adjust the time of realease. I suggest you make time to 5-6 hours, we set up in our data center, the time is so great, it's the fact is that the user may not work for more than contnous for 5 to 6 hours if at all then connection will break and once agin it will be assigned to the new ip address once the user connects. It won't be problem in the normal network.

Hope to help

So useful don't rate

Ganesh.H

Tags: Cisco Security

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    Customer recevrait.31 ou.32...

    Of course assumed that the customer was or would not be on a LAN 192.168.10.X to start. If it was so I could have problems connecting to shares on my LAN Server.

    MS - MVP Windows Desktop Experience
    "When all else fails try what the captain suggested before you started...". »

  • Running the logon script after AnyConnect VPN connection

    Is it possible (such as the Launcher on the IPSec client) to run a login script after establishing a VPN connection? When a user connects to the VPN client AnyConnect I need to be able run a login script to map drives. I looked the ASDM, but see anywhere that it seems that this would be configured. I thought I would check to make sure I'm not missing something.

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  • IPSec VPN: connected to the VPN but cannot access resources

    Hello

    I configured a VPN IPSec on two ISP with IP SLA configured, there is a redundancy on the VPN so that if address main is it connect to the VPN backup.

    QUESTIONS

    -Connect to the primary address and I can access resources

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    I want a way to connect to backup and access on my servers resources. Please help look in the config below

    configuration below:

    interface GigabitEthernet0/0

    LAN description

    nameif inside

    security-level 100

    IP 192.168.202.100 255.255.255.0

    !

    interface GigabitEthernet0/1

    Description CONNECTION_TO_DOPC

    nameif outside

    security-level 0

    IP address 2.2.2.2 255.255.255.248

    !

    interface GigabitEthernet0/2

    Description CONNECTION_TO_COBRANET

    nameif backup

    security-level 0

    IP 3.3.3.3 255.255.255.240

    !

    !

    interface Management0/0

    Shutdown

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    no level of security

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    boot system Disk0: / asa831 - k8.bin

    boot system Disk0: / asa707 - k8.bin

    passive FTP mode

    clock timezone WAT 1

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    DNS server-group DefaultDNS

    Name-Server 4.2.2.2

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    permit same-security-traffic intra-interface

    network of object obj-200

    192.168.200.0 subnet 255.255.255.0

    Description LAN_200

    network of object obj-202

    192.168.202.0 subnet 255.255.255.0

    Description LAN_202

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    subnet 192.168.30.0 255.255.255.128

    network of the RDP_12 object

    Home 192.168.202.12

    Web server description

    service object RDP

    source eq 3389 destination eq 3389 tcp service

    network obj012 object

    Home 192.168.202.12

    the Backup-PAT object network

    192.168.202.0 subnet 255.255.255.0

    NETWORK LAN UBA description

    the DM_INLINE_NETWORK_1 object-group network

    object-network 192.168.200.0 255.255.255.0

    object-network 192.168.202.0 255.255.255.0

    the DM_INLINE_NETWORK_2 object-group network

    network-object object obj-200

    network-object object obj-202

    access-list extended INSIDE_OUT allow ip 192.168.200.0 255.255.255.0 any

    access-list extended INSIDE_OUT allow ip 192.168.202.0 255.255.255.0 any

    OUTSIDE_IN list extended access permit icmp any any idle state

    OUTSIDE_IN list extended access permit tcp any object obj012 eq inactive 3389

    gbnltunnel_splitTunnelAcl standard access list allow 192.168.200.0 255.255.255.0

    standard access list gbnltunnel_splitTunnelAcl allow 192.168.202.0 255.255.255.0

    BACKUP_IN list extended access permit icmp any any idle state

    access extensive list ip 196.216.144.0 encrypt_acl allow 255.255.255.192 192.168.202.0 255.255.255.0

    pager lines 24

    Enable logging

    asdm of logging of information

    Within 1500 MTU

    Outside 1500 MTU

    backup of MTU 1500

    Backup2 MTU 1500

    local pool GBNLVPNPOOL 192.168.30.0 - 192.168.30.100 255.255.255.0 IP mask

    no failover

    ICMP unreachable rate-limit 1 burst-size 1

    ICMP allow any backup

    ASDM image disk0: / asdm-645 - 206.bin

    don't allow no asdm history

    ARP timeout 14400

    NAT (inside, outside) static static source NETWORK_OBJ_192.168.30.0_25 destination DM_INLINE_NETWORK_1 DM_INLINE_NETWORK_1 NETWORK_OBJ_192.168.30.0_25

    NAT (inside, outside) static source DM_INLINE_NETWORK_2 DM_INLINE_NETWORK_2 NETWORK_OBJ_192.168.30.0_25 NETWORK_OBJ_192.168.30.0_25 non-proxy-arp-search of route static destination

    !

    network of object obj-200

    NAT dynamic interface (indoor, outdoor)

    network of object obj-202

    dynamic NAT (all, outside) interface

    network obj012 object

    NAT (inside, outside) interface static service tcp 3389 3389

    the Backup-PAT object network

    dynamic NAT interface (inside, backup)

    !

    NAT source auto after (indoor, outdoor) dynamic one interface

    Access-group interface inside INSIDE_OUT

    Access-group OUTSIDE_IN in interface outside

    Access-group BACKUP_IN in the backup of the interface

    Route outside 0.0.0.0 0.0.0.0 2.2.2.2 1 followed by 100

    Backup route 0.0.0.0 0.0.0.0 3.3.3.3 254

    Timeout xlate 03:00

    Pat-xlate timeout 0:00:30

    Timeout conn 01:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02

    Sunrpc timeout 0:10:00 h323 0:05:00 h225 mgcp from 01:00 0:05:00 mgcp-pat 0:05:00

    Sip timeout 0:30:00 sip_media 0:02:00 prompt Protocol sip-0: 03:00 sip - disconnect 0:02:00

    Timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute

    timeout tcp-proxy-reassembly 0:01:00

    Floating conn timeout 0:00:00

    dynamic-access-policy-registration DfltAccessPolicy

    WebVPN

    value of the URL-list GBNL-SERVERS

    identity of the user by default-domain LOCAL

    the ssh LOCAL console AAA authentication

    AAA authentication http LOCAL console

    AAA authentication enable LOCAL console

    http server enable 441

    http 192.168.200.0 255.255.255.0 inside

    http 192.168.202.0 255.255.255.0 inside

    http 192.168.2.0 255.255.255.0 inside

    http 192.168.30.0 255.255.255.0 inside

    http 0.0.0.0 0.0.0.0 outdoors

    http 0.0.0.0 0.0.0.0 backup

    No snmp server location

    No snmp Server contact

    Server enable SNMP traps snmp authentication linkup, linkdown warmstart of cold start

    ALS 10 monitor

    type echo protocol ipIcmpEcho 31.13.72.1 interface outside

    NUM-package of 5

    Timeout 3000

    frequency 5

    Annex monitor SLA 10 life never start-time now

    Crypto ipsec transform-set ikev1 ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac

    Crypto ipsec transform-set ikev1 ESP-DES-SHA esp - esp-sha-hmac

    Crypto ipsec transform-set ikev1 SHA-ESP-3DES esp-3des esp-sha-hmac

    Crypto ipsec transform-set ikev1 esp ESP-DES-MD5-esp-md5-hmac

    Crypto ipsec transform-set ikev1 ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac

    Crypto ipsec transform-set ikev1 ESP-3DES-MD5-esp-3des esp-md5-hmac

    Crypto ipsec transform-set ikev1 ESP-AES-256-SHA esp-aes-256 esp-sha-hmac

    Crypto ipsec transform-set ikev1 ESP-AES-128-SHA aes - esp esp-sha-hmac

    Crypto ipsec transform-set ikev1 ESP-AES-192-SHA esp-aes-192 esp-sha-hmac

    Crypto ipsec transform-set ikev1 ESP-AES-128-MD5-esp - aes esp-md5-hmac

    crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 pfs Group1 set

    crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 define ikev1 transform-set ESP-AES-128-SHA ESP-AES-128-MD5 ESP-AES-192-SHA ESP-AES-192-MD5 ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA MD5-ESP-3DES ESP-DES-SHA ESP-DES-MD5

    card crypto IPSec_map 10 corresponds to the address encrypt_acl

    card crypto IPSec_map 10 set peer 196.216.144.1

    card crypto IPSec_map 65535-isakmp dynamic ipsec SYSTEM_DEFAULT_CRYPTO_MAP

    outside_map card crypto 65535-isakmp dynamic ipsec SYSTEM_DEFAULT_CRYPTO_MAP

    inside_map card crypto 65535-isakmp dynamic ipsec SYSTEM_DEFAULT_CRYPTO_MAP

    inside crypto map inside_map interface

    ipsec_map card crypto 65535-isakmp dynamic ipsec SYSTEM_DEFAULT_CRYPTO_MAP

    ipsec_map interface card crypto outside

    gbnltunnel card crypto 65535-isakmp dynamic ipsec SYSTEM_DEFAULT_CRYPTO_MAP

    backup of crypto gbnltunnel interface card

    Crypto ca trustpoint ASDM_TrustPoint0

    Terminal registration

    name of the object CN = GBNLVPN.greatbrandsng.com, O = GBNL, C = ng

    Configure CRL

    Crypto ikev1 allow inside

    Crypto ikev1 allow outside

    Crypto ikev1 enable backup

    IKEv1 crypto policy 10

    authentication crack

    aes-256 encryption

    sha hash

    Group 2

    life 86400

    IKEv1 crypto policy 20

    authentication rsa - sig

    aes-256 encryption

    sha hash

    Group 2

    life 86400

    IKEv1 crypto policy 30

    preshared authentication

    aes-256 encryption

    sha hash

    Group 2

    life 86400

    IKEv1 crypto policy 40

    authentication crack

    aes-192 encryption

    sha hash

    Group 2

    life 86400

    IKEv1 crypto policy 50

    authentication rsa - sig

    aes-192 encryption

    sha hash

    Group 2

    life 86400

    IKEv1 crypto policy 60

    preshared authentication

    aes-192 encryption

    sha hash

    Group 2

    life 86400

    IKEv1 crypto policy 70

    authentication crack

    aes encryption

    sha hash

    Group 2

    life 86400

    IKEv1 crypto policy 80

    authentication rsa - sig

    aes encryption

    sha hash

    Group 2

    life 86400

    IKEv1 crypto policy 90

    preshared authentication

    aes encryption

    sha hash

    Group 2

    life 86400

    IKEv1 crypto policy 100

    authentication crack

    3des encryption

    sha hash

    Group 2

    life 86400

    IKEv1 crypto policy 110

    authentication rsa - sig

    3des encryption

    sha hash

    Group 2

    life 86400

    IKEv1 crypto policy 120

    preshared authentication

    3des encryption

    sha hash

    Group 2

    life 86400

    IKEv1 crypto policy 130

    authentication crack

    the Encryption

    sha hash

    Group 2

    life 86400

    IKEv1 crypto policy 140

    authentication rsa - sig

    the Encryption

    sha hash

    Group 2

    life 86400

    IKEv1 crypto policy 150

    preshared authentication

    the Encryption

    sha hash

    Group 2

    life 86400

    enable client-implementation to date

    !

    track 10 rtr 100 accessibility

    !

    Track 100 rtr 10 accessibility

    Telnet 192.168.200.0 255.255.255.0 inside

    Telnet 192.168.202.0 255.255.255.0 inside

    Telnet timeout 5

    SSH 192.168.202.0 255.255.255.0 inside

    SSH 192.168.200.0 255.255.255.0 inside

    SSH 0.0.0.0 0.0.0.0 inside

    SSH 0.0.0.0 0.0.0.0 outdoors

    SSH 0.0.0.0 0.0.0.0 backup

    SSH timeout 30

    SSH group dh-Group1-sha1 key exchange

    Console timeout 0

    management-access inside

    a basic threat threat detection

    threat detection statistics

    a statistical threat detection tcp-interception rate-interval 30 burst-400-rate average rate 200

    WebVPN

    allow outside

    enable backup

    activate backup2

    internal gbnltunnel group policy

    attributes of the strategy of group gbnltunnel

    Ikev1 VPN-tunnel-Protocol

    Split-tunnel-policy tunnelspecified

    greatbrandsng.com value by default-field

    Group Policy 'Group 2' internal

    type of remote access service

    type tunnel-group gbnltunnel remote access

    tunnel-group gbnltunnel General-attributes

    address GBNLVPNPOOL pool

    Group Policy - by default-gbnltunnel

    gbnltunnel group of tunnel ipsec-attributes

    IKEv1 pre-shared-key *.

    type tunnel-group GBNLSSL remote access

    type tunnel-group GBNL_WEBVPN remote access

    attributes global-tunnel-group GBNL_WEBVPN

    Group Policy - by default-gbnltunnel

    tunnel-group 196.216.144.1 type ipsec-l2l

    IPSec-attributes tunnel-group 196.216.144.1

    IKEv1 pre-shared-key *.

    !

    class-map inspection_default

    match default-inspection-traffic

    !

    !

    type of policy-card inspect dns preset_dns_map

    parameters

    maximum message length automatic of customer

    message-length maximum 512

    Policy-map global_policy

    class inspection_default

    inspect the preset_dns_map dns

    inspect the ftp

    inspect h323 h225

    inspect the h323 ras

    inspect the rsh

    inspect the rtsp

    inspect esmtp

    inspect sqlnet

    inspect the skinny

    inspect sunrpc

    inspect xdmcp

    inspect the sip

    inspect the netbios

    inspect the tftp

    Review the ip options

    inspect the icmp

    !

    global service-policy global_policy

    context of prompt hostname

    no remote anonymous reporting call

    HPM topN enable

    Cryptochecksum:6004bf457c9c0bc1babbdbf1cd8aeba5

    : end

    When you say that "the external interface is downwards using failover techniques" you mean this failover occurred because the ASA is no longer able to reach the 31.13.72.1?  Not that the actual interface is broken?

    If this is the case, then the NATing is your problem.  Since you're using the same VPN pool for VPN connections the ASA cannot distinguish between the two streams of traffic if the external interface is still in place.  The SLA tracking only removes a route in the routing table, but does not affect what happens in the NAT process.

    try to change the NAT statement follows him and the test (don't forget to remove the other statements to exempt of NAT for this traffic during the test):

    NAT (inside,any) static static source NETWORK_OBJ_192.168.30.0_25 destination DM_INLINE_NETWORK_1 DM_INLINE_NETWORK_1 NETWORK_OBJ_192.168.30.0_25

    If this does not work, I would either turn off the external interface when a failover occurs, or create a second connection profile that contains a separate mass of IP for the VPN connection and ask users to connect using this profile when a failover takes place.  Don't forget to create Nat exempt instructions for this traffic also.

    --

    Please note all useful posts

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