Cisco VPN Client - what are the ports I need to open the 1841?

Hello. As it says on the Tin really, what are the ports I need to allow my access on our 1841 list to allow the Cisco VPN client on through it?

Ta

UDP 500 (isakmp)

UDP 4500 (nat - t)

Protocol ESP 50

Tags: Cisco Security

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  • [SOLVED] Native Iphone4s Cisco VPN client cannot establish the tunnel (victory clients do)

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    IPhone 4 s last IOS5 V 5.1.1 installed

    I'm not able to make the native IPSEC VPN connection upset my company Cisco 877

    Instead, all my computer laptop and netbook with Cisco VPN Client work installed fine when they connect remotely to society 877

    Turn debugging 877, it seems Iphone successfully passes the 1 connection ike (actually Iphone wonder phase2 user/pass), but it hung to phase2 give me the error 'Negotiation with the VPN server has no' back

    An idea or a known issue on this?

    This is how I configured my VPN 877 part:

    R1 (config) # aaa new-model

    R1 (config) # aaa authentication default local connection

    R1 (config) # aaa authentication login vpn_xauth_ml_1 local

    R1 (config) # aaa authentication login local sslvpn

    R1 (config) # aaa authorization network vpn_group_ml_1 local

    R1 (config) # aaa - the id of the joint session

    Crypto isakmp policy of R1 (config) # 1

    R1(config-ISAKMP) # BA 3des

    # Preshared authentication R1(config-ISAKMP)

    Group R1(config-ISAKMP) # 2

    R1(config-ISAKMP) #.

    R1(config-ISAKMP) #crypto isakmp policy 2

    R1(config-ISAKMP) # BA 3des

    Md5 hash of R1(config-ISAKMP) #.

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    Group R1(config-ISAKMP) # 2

    Output R1(config-ISAKMP) #.

    R1 (config) # CUSTOMER - VPN crypto isakmp client configuration group

    R1(config-ISAKMP-Group) # key xxxxxxxx

    R1(config-ISAKMP-Group) # 192.168.0.1 dns

    R1(config-ISAKMP-Group) # VPN - pool

    ACL R1(config-ISAKMP-Group) # 120

    R1(config-ISAKMP-Group) max-users # 5

    Output R1(config-ISAKMP-Group) #.

    R1 (config) # ip local pool VPN-pool 192.168.0.20 192.168.0.25

    R1 (config) # crypto ipsec transform-set encrypt-method-1 esp-3des esp-sha-hmac

    R1 (config) # crypto ipsec VPN-profile-1 profile

    R1(IPSec-Profile) # set the transform-set encrypt method 1

    Tunnel type interface virtual-Template2 R1 (config) #.

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    R1(Config-if) # tunnel mode ipsec ipv4

    Ipsec protection tunnel R1(Config-if) # VPN - profile - 1 profile

    Profile of R1 (config) # isakmp crypto vpn-ike-profile-1

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    Then run AccessList 120 for desired traffic ("access-list 120 now allows ip any any")

    I have configured my VPN Cisco "CUSTOMER-VPN" clients and relative password

    Whenever they connect, they are prompted for the password and username phase2 then they join the VPN with an IP address from local subnet released.

    With the same parameters required and confirmed in section ipsec VPN Iphone it does not work.

    It's 877 isakmp debug output after that Iphone wonder name of user and password (then I suppose that phase 1 completed):

    * 14:29:30.731 May 19: ISAKMP (0:2081): received 151.38.197.143 packet 500 Global 500 (R) sport dport CONF_XAUTH

    * 14:29:30.735 May 19: ISAKMP: (2081): responsible for operation of 151.38.197.143 of treatment. Message ID =-1427983983

    * 14:29:30.735 May 19: ISAKMP: Config payload RESPONSE

    * 14:29:30.735 May 19: ISAKMP/xauth: response XAUTH_USER_NAME_V2 attribute

    * 14:29:30.735 May 19: ISAKMP/xauth: response XAUTH_USER_PASSWORD_V2 attribute

    * 14:29:30.735 May 19: ISAKMP: (2081): node-1427983983 error suppression FALSE reason "made with Exchange of request/response xauth.

    * 14:29:30.735 May 19: ISAKMP: (2081): entry = IKE_MESG_FROM_PEER, IKE_CFG_REPLY

    * 14:29:30.735 May 19: ISAKMP: (2081): former State = new State IKE_XAUTH_REQ_SENT = IKE_XAUTH_AAA_CONT_LOGIN_AWAIT

    * 14:29:30.743 May 19: ISAKMP: node set 1322685842 to CONF_XAUTH

    * 19 May 14:29:30.747: ISAKMP: (2081): launch peer 151.38.197.143 config. ID = 1322685842

    * 19 May 14:29:30.747: ISAKMP: (2081): lot of 151.38.197.143 sending my_port 500 peer_port 500 (R) CONF_XAUTH

    * 14:29:30.747 May 19: ISAKMP: (2081): sending a packet IPv4 IKE.

    * 14:29:30.747 May 19: ISAKMP: (2081): entry = IKE_MESG_FROM_AAA, IKE_AAA_CONT_LOGIN

    * 14:29:30.747 May 19: ISAKMP: (2081): former State = new State IKE_XAUTH_AAA_CONT_LOGIN_AWAIT = IKE_XAUTH_SET_SENT

    * 14:29:31.299 May 19: ISAKMP (0:2081): received 151.38.197.143 packet 500 Global 500 (R) sport dport CONF_XAUTH

    * 14:29:31.299 May 19: ISAKMP: (2081): responsible for operation of 151.38.197.143 of treatment. Message ID = 1322685842

    * 14:29:31.299 May 19: ISAKMP: Config payload ACK

    * 19 May 14:29:31.303: ISAKMP: (2081): XAUTH ACK processed

    * 14:29:31.303 May 19: ISAKMP: (2081): error suppression node 1322685842 FALSE basis "Mode of Transaction.

    * 14:29:31.303 May 19: ISAKMP: (2081): talking to a customer of the unit

    * 14:29:31.303 May 19: ISAKMP: (2081): entry = IKE_MESG_FROM_PEER, IKE_CFG_ACK

    * 14:29:31.303 May 19: ISAKMP: (2081): former State = new State IKE_XAUTH_SET_SENT = IKE_P1_COMPLETE

    * 14:29:31.303 May 19: ISAKMP: (2081): entry = IKE_MESG_INTERNAL, IKE_PHASE1_COMPLETE

    * 14:29:31.303 May 19: ISAKMP: (2081): former State = new State IKE_P1_COMPLETE = IKE_P1_COMPLETE

    * 19 May 14:29:31.303: IPSEC (key_engine): had an event of the queue with 1 KMI message (s)

    * 14:29:31.315 May 19: ISAKMP: (2081): entry = IKE_MESG_INTERNAL, IKE_PHASE1_COMPLETE

    * 14:29:31.315 May 19: ISAKMP: (2081): former State = new State IKE_P1_COMPLETE = IKE_P1_COMPLETE

    * 14:29:31.623 may 19: ISAKMP (0:2081): received 151.38.197.143 packet 500 Global 500 (R) sport dport QM_IDLE

    * 14:29:31.623 may 19: ISAKMP: node set-851463821 to QM_IDLE

    * 14:29:31.623 may 19: ISAKMP: (2081): responsible for operation of 151.38.197.143 of treatment. Message ID =-851463821

    * 14:29:31.623 may 19: ISAKMP: Config payload REQUEST

    * 14:29:31.623 may 19: ISAKMP: (2081): verification of claim:

    * 14:29:31.623 may 19: ISAKMP: IP4_ADDRESS

    * 14:29:31.623 may 19: ISAKMP: IP4_NETMASK

    * 14:29:31.623 may 19: ISAKMP: IP4_DNS

    * 14:29:31.623 may 19: ISAKMP: IP4_NBNS

    * 14:29:31.623 may 19: ISAKMP: ADDRESS_EXPIRY

    * 14:29:31.623 may 19: ISAKMP: APPLICATION_VERSION

    * 14:29:31.623 may 19: ISAKMP: MODECFG_BANNER

    * 14:29:31.623 may 19: ISAKMP: domaine_par_defaut

    * 14:29:31.623 may 19: ISAKMP: SPLIT_DNS

    * 14:29:31.623 may 19: ISAKMP: SPLIT_INCLUDE

    * 14:29:31.623 may 19: ISAKMP: INCLUDE_LOCAL_LAN

    * 14:29:31.623 may 19: ISAKMP: PFS

    * 14:29:31.623 may 19: ISAKMP: MODECFG_SAVEPWD

    * 14:29:31.623 may 19: ISAKMP: FW_RECORD

    * 14:29:31.623 may 19: ISAKMP: serveur_sauvegarde

    * 14:29:31.623 may 19: ISAKMP: MODECFG_BROWSER_PROXY

    * 14:29:31.627 May 19: ISAKMP/author: author asks for CUSTOMER-VPNsuccessfully group AAA

    * 14:29:31.627 May 19: ISAKMP: (2081): entry = IKE_MESG_FROM_PEER, IKE_CFG_REQUEST

    * 14:29:31.627 May 19: ISAKMP: (2081): former State = new State IKE_P1_COMPLETE = IKE_CONFIG_AUTHOR_AAA_AWAIT

    * 14:29:31.627 May 19: ISAKMP: (2081): attributes sent in the message:

    * 19 May 14:29:31.627: address: 0.2.0.0

    * 19 May 14:29:31.627: ISAKMP: (2081):address of 192.168.0.21 assignment

    * 14:29:31.627 May 19: ISAKMP: sending private address: 192.168.0.21

    * 14:29:31.627 May 19: ISAKMP: send the subnet mask: 255.255.255.0

    * 14:29:31.631 May 19: ISAKMP: sending IP4_DNS server address: 192.168.0.1

    * 14:29:31.631 May 19: ISAKMP: sending ADDRESS_EXPIRY seconds left to use the address: 3576

    * 14:29:31.631 May 19: ISAKMP: string APPLICATION_VERSION sending: Cisco IOS software, software C870 (C870-ADVIPSERVICESK9-M), Version 12.4 (15) T7, VERSION of the SOFTWARE (fc3)

    Technical support: http://www.cisco.com/techsupport

    Copyright (c) 1986-2008 by Cisco Systems, Inc.

    Updated Friday 14 August 08 07:43 by prod_rel_team

    * 14:29:31.631 May 19: ISAKMP: split shipment include the name Protocol 120 network 0.0.0.0 mask 0.0.0.0 0 src port 0, port 0 DST

    * 14:29:31.631 May 19: ISAKMP: sending save the password answer value 0

    * 19 May 14:29:31.631: ISAKMP: (2081): respond to peer 151.38.197.143 config. ID =-851463821

    * 19 May 14:29:31.631: ISAKMP: (2081): lot of 151.38.197.143 sending my_port 500 peer_port 500 (R) CONF_ADDR

    * 14:29:31.631 May 19: ISAKMP: (2081): sending a packet IPv4 IKE.

    * 14:29:31.631 May 19: ISAKMP: (2081): node-851463821 error suppression FALSE reason "error no.".

    * 14:29:31.631 May 19: ISAKMP: (2081): talking to a customer of the unit

    * 14:29:31.631 May 19: ISAKMP: (2081): entry = IKE_MESG_FROM_AAA, IKE_AAA_GROUP_ATTR

    * 14:29:31.631 May 19: ISAKMP: (2081): former State = new State IKE_CONFIG_AUTHOR_AAA_AWAIT = IKE_P1_COMPLETE

    * 14:29:31.635 May 19: ISAKMP: (2081): entry = IKE_MESG_INTERNAL, IKE_PHASE1_COMPLETE

    * 14:29:31.635 May 19: ISAKMP: (2081): former State = new State IKE_P1_COMPLETE = IKE_P1_COMPLETE

    Here the Iphone remains unused for a few seconds...

    * 14:29:48.391 May 19: ISAKMP (0:2081): received 151.38.197.143 packet 500 Global 500 (R) sport dport QM_IDLE

    * 14:29:48.391 May 19: ISAKMP: node set 1834509506 to QM_IDLE

    * 19 May 14:29:48.391: ISAKMP: (2081): HASH payload processing. Message ID = 1834509506

    * 19 May 14:29:48.391: ISAKMP: (2081): treatment of payload to DELETE. Message ID = 1834509506

    * 14:29:48.391 May 19: ISAKMP: (2081): peer does not paranoid KeepAlive.

    * 14:29:48.395 May 19: ISAKMP: (2081): peer does not paranoid KeepAlive.

    * 14:29:48.395 May 19: ISAKMP: (2081): removal of HIS right State 'No reason' (R) QM_IDLE (post 151.38.197.143)

    * 14:29:48.395 May 19: ISAKMP: (2081): error suppression node 1834509506 FALSE reason 'informational (en) State 1.

    * 19 May 14:29:48.395: IPSEC (key_engine): had an event of the queue with 1 KMI message (s)

    * 19 May 14:29:48.395: IPSEC (key_engine_delete_sas): rec would notify of ISAKMP

    * 19 May 14:29:48.395: IPSEC (key_engine_delete_sas): remove all SAs shared with peer 151.38.197.143

    * 14:29:48.395 May 19: ISAKMP: node set-1711408233 to QM_IDLE

    * 19 May 14:29:48.395: ISAKMP: (2081): lot of 151.38.197.143 sending my_port 500 peer_port 500 (R) QM_IDLE

    * 14:29:48.395 May 19: ISAKMP: (2081): sending a packet IPv4 IKE.

    * 14:29:48.399 May 19: ISAKMP: (2081): purge the node-1711408233

    * 14:29:48.399 May 19: ISAKMP: (2081): entry = IKE_MESG_INTERNAL, IKE_PHASE1_DEL

    * 14:29:48.399 May 19: ISAKMP: (2081): former State = new State IKE_P1_COMPLETE = IKE_DEST_SA

    * 14:29:48.399 May 19: ISAKMP: (2081): removal of HIS right State 'No reason' (R) QM_IDLE (post 151.38.197.143)

    * 14:29:48.399 May 19: ISAKMP: (0): cannot decrement IKE Call Admission Control incoming_active stat because he's already 0.

    * 14:29:48.399 May 19: ISAKMP (0:2081): return address 192.168.0.21 to pool

    * 14:29:48.399 May 19: ISAKMP: Unlocking counterpart struct 0 x 84084990 for isadb_mark_sa_deleted(), count 0

    * 14:29:48.399 May 19: ISAKMP: return address 192.168.0.21 to pool

    * 14:29:48.399 May 19: ISAKMP: delete peer node by peer_reap for 151.38.197.143: 84084990

    * 14:29:48.399 May 19: ISAKMP: return address 192.168.0.21 to pool

    * 14:29:48.403 May 19: ISAKMP: (2081): node-1427983983 error suppression FALSE reason 'IKE deleted.

    * 14:29:48.403 May 19: ISAKMP: (2081): error suppression node 1322685842 FALSE reason 'IKE deleted.

    * 14:29:48.403 May 19: ISAKMP: (2081): node-851463821 error suppression FALSE reason 'IKE deleted.

    * 14:29:48.403 May 19: ISAKMP: (2081): error suppression node 1834509506 FALSE reason 'IKE deleted.

    * 14:29:48.403 May 19: ISAKMP: (2081): entry = IKE_MESG_FROM_PEER, IKE_MM_EXCH

    * 14:29:48.403 May 19: ISAKMP: (2081): former State = new State IKE_DEST_SA = IKE_DEST_SA

    * 19 May 14:29:48.403: IPSEC (key_engine): had an event of the queue with 1 KMI message (s)

    It seems 877 comes even to assign a local ip address of LAN for Iphone (192.168.0.21) but then something goes wrong...

    Any idea or suggestion on this?

    Thank you very much

    Hi Federico,.

    Please let us know.

    Please mark this message as answered while others will be able to learn the lessons.

    Thank you.

    Portu.

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    Mar 20 Oct 20:03:10 2015 (GMT + 0000): [r1] [IKE] INFO: received unknown Vendor ID
    Mar 20 Oct 20:03:10 2015 (GMT + 0000): [r1] [IKE] INFO: received Vendor ID: CISCO-UNITY
    Mar 20 Oct 20:03:10 2015 (GMT + 0000): [r1] [IKE] INFO: NAT detected: is located behind a device. NAT and alsoPeer is behind a NAT device
    Mar 20 Oct 20:03:10 2015 (GMT + 0000): [r1] [IKE] INFO: request sending Xauth for > [44074]
    Mar 20 Oct 20:03:10 2015 (GMT + 0000): [r1] [IKE] INFO: ISAKMP Security Association established for > [4500] -> [44074] with spi =>.
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] INFO: receives the type of the attribute 'ISAKMP_CFG_REPLY' of > [44074]
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] INFO: login successful for the user "myusername".
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] INFO: myusername XAuthUser connected from the IP >
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] INFO: sending of information Exchange: Notify payload [10381]
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] INFO: receives the type of the attribute 'ISAKMP_CFG_REQUEST' of > [44074]
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] ERROR: local configuration for > [44074] has no config mode
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] ERROR: local configuration for > [44074] has no config mode
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] ERROR: local configuration for > [44074] has no config mode
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] ERROR: local configuration for > [44074] has no config mode
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] WARNING: ignored attribute 5
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] ERROR: local configuration for > [44074] has no config mode
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] ERROR: local configuration for > [44074] has no config mode
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] ERROR: local configuration for > [44074] has no config mode
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] ERROR: local configuration for > [44074] has no config mode
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] ERROR: local configuration for > [44074] has no config mode
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] ERROR: local configuration for > [44074] has no config mode
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] WARNING: attribute ignored 28683
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] ERROR: local configuration for > [44074] has no mode config
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] WARNING: attribute ignored 28684
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] ERROR: local configuration for > [44074] has no config mode
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] ERROR: local configuration for > [44074] has no mode config
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] ERROR: remove the invalid payload with doi:0.
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] INFO: purged-Association of ISAKMP security with proto_id = ISAKMP and spi =>.
    Mar 20 Oct 20:03:15 2015 (GMT + 0000): [r1] [IKE] INFO: myusername XAuthUser Logged Out of the IP >
    Mar 20 Oct 20:03:16 2015 (GMT + 0000): [r1] [IKE] INFO: ISAKMP Security Association deleted for > [4500] -> [44074] with spi =>

    The router configuration

    IKE policy

    VPN strategy

    Client configuration

    Hôte : < router="" ip=""> >

    Authentication group name: remote.com

    Password authentication of the Group: mysecretpassword

    Transport: Enable Transparent Tunneling; IPSec over UDP (NAT/PAT)

    Username: myusername

    Password: mypassword

    Please contact Cisco.

    Correct, the RV180 is not compatible with the Cisco VPN Client.  The Iphone uses the Cisco VPN Client.

    You can use the PPTP on the RV180 server to connect a PPTP Client.

    In addition, it RV180 will allow an IPsec connection to third-party customers 3.  Greenbow and Shrew Soft are 2 commonly used clients.

  • VPN client: What ports and protocols?

    Anyone know which ports and protocols are used by the cisco VPN client? (Telco needs this info, because the VPN client does not work in its network)

    I know of UDP/500 (ISAKMP)

    Erik

    Erik,

    In addition to ISAKMP, Protocol ESP 50 you and, possibly, NAT - T which is UDP/4500.

    Andy

  • What is a VPN solution that is more stable than IPSEC VPN? What is the latest version of VPN client recommended for Windows 7 &amp; 8 users?

    Hello

    I would like to ask a few details & concerns on our existing VPN configuration.

    1. What is the Cisco VPN client recommended for users of Windows 7 and 8? Is there an official documentation for this Cisco? We currently use customer VPN Ciso 5.0.7.

    2. we are running IPSEC VPN with only 1 gateway & only local authentication (No ACS) for our client. Recently, we have some concerns that they are the VPN connection is down. Whereas if I'm the one connected to the VPN, my connection is stable. Is there any point that we must consider up in the network. Is there a better configuration or solution that we could recommend to the customer as SSL VPN?

    3. If you want to use SSL VPN anyconnect secure mobility & we want to implement redundancy on the FW, how will the license work?

    Thank you!

    An AnyConnect-based VPN is the replacement recommended for remote IPsec VPN access. (source)

    AnyConnect can use SSL or IPsec (IKEv2) for transport.

    For an ASA redundant firewalls (running 8.3 (1) or later) any permit required AnyConnect are shared between them. that is, you just buy licenses for a member of the HA pair. (source)

  • How to create a VPN file .pcf for the CISCO VPN CLIENT software profile

    Dear all

    How to create a VPN file .pcf for the CISCO VPN CLIENT software profile

    Concerning

    Hi Imran,

    Can't do much about that because it depends on what authenticate you the VPN server and how the settings. But let me introduce you to the memory layout. Once you install and open a VPN client. Press it again and it opens up a new page for the VPN config.

    Example of configuration as it is attached. But it differs depending on the configuration of your vpn server.

    Once you create and save this profile. Your FCP file is stored.

    Please assess whether the information provided is useful.

    By

    Knockaert

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