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Billion BiGuard S20 & GreenBow VPN Configuration

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    TheGreenBow IPSec VPN Client

    Configuration Guide

    Bil lion BiGuard S20

    WebSite: http://www.thegreenbow.com

    Contact: [email protected]

    Configuration Guide written by:

    Writer: TheGreenBow Support Team

    Company: www.thegreenbow.com

    http://www.thegreenbow.com/http://www.thegreenbow.com/mailto:[email protected]:[email protected]:[email protected]://www.thegreenbow.com/
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    Table of contents

    1 Introduction .................................................................................................................................................... 31.1 Goal of this document ............................................................................................................................ 31.2 VPN Network topology ........................................................................................................................... 31.3 Billion BiGuard S20 Restrictions ............................................................................................................ 31.4 Billion BiGuard S20 VPN Gateway ........................................................................................................ 31.5 Billion BiGuard S20 VPN Gateway product info ..................................................................................... 4

    2 Billion BiGuard S20 VPN configuration .......................................................................................................... 53 TheGreenBow IPSec VPN Client configuration ............................................................................................. 8

    3.1 VPN Client Phase 1 (IKE) Configuration ................................................................................................ 83.2 VPN Client Phase 2 (IPSec) Configuration .......................................................................................... 103.3 Open IPSec VPN tunnels ..................................................................................................................... 11

    4 Tools in case of trouble ................................................................................................................................ 124.1 A good network analyser: Wireshark ................................................................................................... 12

    5 VPN IPSec Troubleshooting ........................................................................................................................ 135.1 PAYLOAD MALFORMED error (wrong Phase 1 [SA]) ................................................................. 135.2 INVALID COOKIE error.................................................................................................................. 135.3 no keystate error ............................................................................................................................ 135.4 received remote ID other than expected error ................................................................................ 135.5 NO PROPOSAL CHOSEN error .................................................................................................... 145.6 INVALID ID INFORMATION error .................................................................................................. 145.7 I clicked on Open tunnel, but nothing happens. ................................................................................. 145.8 The VPN tunnel is up but I cant ping ! ................................................................................................. 14

    6 Contacts ....................................................................................................................................................... 16

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    1 Introduction1.1 Goal of this documentThis configuration guide describes how to configure TheGreenBow IPSec VPN Client with a Billion BiGuard S20VPN router.

    n BiGuard S20VPN router.

    1.2 VPN Network topology1.2 VPN Network topologyIn our VPN network example (diagram hereafter), we will connect TheGreenBow IPSec VPN Client to the LANbehind the Billion BiGuard S20 router. The VPN client is connected to the Internet with a DSL connection orthrough a LAN. All the addresses in this document are given for example purpose.

    In our VPN network example (diagram hereafter), we will connect TheGreenBow IPSec VPN Client to the LANbehind the Billion BiGuard S20 router. The VPN client is connected to the Internet with a DSL connection orthrough a LAN. All the addresses in this document are given for example purpose.

    Internet BiGuardS20

    192.168.1.78

    192.168.1.1mygateway.dyndns.org

    IPSec VPN ClientRemote

    192.168.1.3

    IPSec VPN Client

    (as seen on the LAN)

    1.3 Billion BiGuard S20 Restrictions1.3 Billion BiGuard S20 RestrictionsNo known restrictions.No known restrictions.

    1.4 Billion BiGuard S20 VPN Gateway1.4 Billion BiGuard S20 VPN GatewayOur tests and VPN configuration have been conducted with Billion BiGuard S20, Bootrom version 1.13 &Software version 3.14a4.Our tests and VPN configuration have been conducted with Billion BiGuard S20, Bootrom version 1.13 &Software version 3.14a4.

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    1.5 Bil lion BiGuard S20 VPN Gateway product infoIt is critical that users find all necessary information about Billion BiGuard S20 VPN Gateway. All product info,User Guide and knowledge base for the Billion BiGuard S20 VPN Gateway can be found on the Billion website:http://www.billion.com/.

    Billion BiGuard S20 Product page http://www.billion.com/product/biguard/biguards20.php

    Billion BiGuard S20 User Guidehttp://www.billion.com/_Internet/datasheet/BiGuard_SSL_VPN_Series.pdf

    Billion BiGuard S20 FAQ/KnowledgeBase

    http://www.billion.com/support/faq/faq-bi0.php

    http://www.billion.com/http://www.billion.com/http://www.billion.com/product/biguard/biguards20.phphttp://www.billion.com/product/biguard/biguards20.phphttp://www.billion.com/_Internet/datasheet/BiGuard_SSL_VPN_Series.pdfhttp://www.billion.com/_Internet/datasheet/BiGuard_SSL_VPN_Series.pdfhttp://www.billion.com/_Internet/datasheet/BiGuard_SSL_VPN_Series.pdfhttp://www.billion.com/support/faq/faq-bi0.phphttp://www.billion.com/support/faq/faq-bi0.phphttp://www.billion.com/support/faq/faq-bi0.phphttp://www.billion.com/_Internet/datasheet/BiGuard_SSL_VPN_Series.pdfhttp://www.billion.com/_Internet/datasheet/BiGuard_SSL_VPN_Series.pdfhttp://www.billion.com/product/biguard/biguards20.phphttp://www.billion.com/
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    2 Billion BiGuard S20 VPN configurationThis section describes how to build an IPSec VPN configuration with your Billion BiGuard S20 VPN router.

    Once connected to your Billion BiGuard S20 VPN gateway, you must select Configuration and IPSec tabs.In this part, you click on Create in order to make a new IPSec Policy.

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    It will bring you to the following page in which you will fill in all IPSec parameters:

    ThenetworktoreachbyVPNClient/LANsubnet

    ofBillionRouter

    VPNClientIPAddress

    The local ID ([email protected]) in this router corresponds to the Remote ID in the VPN Client whereasthe remote ID ([email protected]) to the Local ID in Phase 1 Advanced in VPN Client software.

    The local network corresponds to Remote LAN Address and for the remote network (10.0.0.1); it is for the VPNClient Address.

    Then we selected the Aggressive Mode with an ESP method (using AES256 and SHA1), a Preshared Key(0123456789), and activated the PFS (Modp 1536 / Group 5).

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    After having configured all these parameters of the Billion BiGuard S20 router, you click on Apply! You will seethe below page:

    Click Save Config to Flash and Apply.

    Now youve completed the configuration of the Billion BiGuard S20 VPN router for TheGreenBow VPN Clientsoftware.

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    3 TheGreenBow IPSec VPN Client conf igurationThis section describes the required configuration to connect to a Billion BiGuard S20 VPN router.

    To download the latest release of TheGreenBow IPSec VPN Client software, please go tohttp://www.thegreenbow.com/vpn_down.html.

    3.1 VPN Client Phase 1 (IKE) Configuration

    TheremoteVPNGatewayIPaddressiseitheranexplicitIP

    address,oraDNSName.(WAN1addressofRouter)

    0123456789

    Phase 1 conf iguration

    So, here you find the same parameters as in the Billion BiGuard S20 router VPN Configuration (see page 5).

    The Remote Gateway shall match the WAN1 address of the Billion BiGuard S20 VPN router.

    http://www.thegreenbow.com/vpn_down.htmlhttp://www.thegreenbow.com/vpn_down.html
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    Then click on P1 Advanced.

    In this Phase 1 Advanced, select Aggressive Mode as we do in the Billion router.

    The Local ID in the VPN Client shall match the Remote ID and the Remote ID, the Local ID in the BillionBiGuard S20 VPN router.

    Click on Ok.

    Now youve completed configuration of the Phase 1.

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    3.2 VPN Client Phase 2 (IPSec) Conf iguration

    VPNClientIPAddress.ConfiguredinBillion

    router.(Page6)

    RemoteLANtoreachbyVPNClient

    Phase 2 Configuration

    The part ESP shall match the Phase2 group in the Billion BiGuard S20 (in the part Proposal, EncryptionProtocol Authentication Protocol and PFS) VPN router.

    Click on Save & Apply.

    And you have finished the configuration of the TheGreenBow VPN Client software.

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    3.3 Open IPSec VPN tunnelsOnce both Billion BiGuard S20 router and TheGreenBow IPSec VPN Client software have been configuredaccordingly, you are ready to open VPN tunnels. First make sure you enable your firewall with IPSec traffic.

    1. Click on "Save & Apply" to take into account all modifications we've made on your VPN Client configuration

    2. Click on "Open Tunnel", or generate traffic that will automatically open a secure IPSec VPN Tunnel (e.g. ping,IE browser)

    3. Select "Connections" to see opened VPN Tunnels

    4. Select "Console" if you want to access to the IPSec VPN logs and adjust filters to display less IPSecmessaging. The following example shows a successful connection between TheGreenBow IPSec VPN Client anda Billion BiGuard S20 VPN router.

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    4 Tools in case of troubleConfiguring an IPSec VPN tunnel can be a hard task. One missing parameter can prevent a VPN connectionfrom being established. Some tools are available to find source of troubles during a VPN establishment.

    4.1 A good network analyser: WiresharkWireshark is a free software that can be used for packet and traffic analysis. It shows IP or TCP packets receivedon a network card. This tool is available on website http://www.wireshark.org. It can be used to follow protocolexchange between two devices. For installation and use details, read its specific documentation(http://www.wireshark.org/docs/).

    http://www.wireshark.org/http://www.wireshark.org/http://www.wireshark.org/docs/http://www.wireshark.org/docs/http://www.wireshark.org/docs/http://www.wireshark.org/
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    5 VPN IPSec Troubleshooting5.1 PAYLOAD MALFORMED error (wrong Phase 1 [SA])114920 Default (SA Gateway1-P1) SEND phase 1 Main Mode [SA][VID]

    114920 Default (SA Gateway1-P1) RECV phase 1 Main Mode [NOTIFY]

    114920 Default exchange_run: exchange_validate failed

    114920 Default dropped message from 195.100.205.114 port 500 due to notification

    type PAYLOAD_MALFORMED

    114920 Default SEND Informational [NOTIFY] with PAYLOAD_MALFORMED error

    If you have an PAYLOAD MALFORMED error you might have a wrong Phase 1 [SA], check if the encryptionalgorithms are the same on each side of the VPN tunnel.

    5.2 INVALID COOKIE error115933 Default message_recv: invalid cookie(s) 5918ca0c2634288f 7364e3e486e49105115933 Default dropped message from 195.100.205.114 port 500 due to notification

    type INVALID_COOKIE

    115933 Default SEND Informational [NOTIFY] with INVALID_COOKIE error

    If you have an INVALID COOKIE error, it means that one of the endpoint is using a SA that is no more in use.Reset the VPN connection on each side.

    5.3 no keystate error115315 Default (SA Gateway1-P1) SEND phase 1 Main Mode [SA][VID]

    115317 Default (SA Gateway1-P1) RECV phase 1 Main Mode [SA][VID]

    115317 Default (SA Gateway1-P1) SEND phase 1 Main Mode [KEY][NONCE]

    115319 Default (SA Gateway1-P1) RECV phase 1 Main Mode [KEY][NONCE]

    115319 Default (SA Gateway1-P1) SEND phase 1 Main Mode [ID][HASH][NOTIFY]

    115319 Default ipsec_get_keystate: no keystate in ISAKMP SA 00B57C50

    Check if the preshared key is correct or if the local ID is correct (see Advanced button). You should havemore information in the remote endpoint logs.

    5.4 received remote ID other than expected error120348 Default (SA Gateway1-P1) SEND phase 1 Main Mode [SA][VID]

    120349 Default (SA Gateway1-P1) RECV phase 1 Main Mode [SA][VID]

    120349 Default (SA Gateway1-P1) SEND phase 1 Main Mode [KEY][NONCE]

    120351 Default (SA Gateway1-P1) RECV phase 1 Main Mode [KEY][NONCE]120351 Default (SA Gateway1-P1) SEND phase 1 Main Mode [ID][HASH][NOTIFY]

    120351 Default (SA Gateway1-P1) RECV phase 1 Main Mode [ID][HASH][NOTIFY]

    120351 Default ike_phase_1_recv_ID: received remote ID other than expected

    [email protected]

    The Remote ID value (see Advanced Button) does not match what the remote endpoint is expected.

    mailto:[email protected]:[email protected]
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    5.5 NO PROPOSAL CHOSEN error115911 Default (SA Gateway1-P1) SEND phase 1 Main Mode [SA][VID]

    115913 Default (SA Gateway1-P1) RECV phase 1 Main Mode [SA][VID]

    115913 Default (SA Gateway1-P1) SEND phase 1 Main Mode [KEY][NONCE]

    115915 Default (SA Gateway1-P1) RECV phase 1 Main Mode [KEY][NONCE]115915 Default (SA Gateway1-P1) SEND phase 1 Main Mode [ID][HASH][NOTIFY]

    115915 Default (SA Gateway1-P1) RECV phase 1 Main Mode [ID][HASH][NOTIFY]

    115915 Default phase 1 done: initiator id c364cd70: 195.100.205.112, responder id

    c364cd72: 195.100.205.114, src: 195.100.205.112 dst: 195.100.205.114

    115915 Default (SA Gateway1-Tunnel1-P2) SEND phase 2 Quick Mode

    [SA][KEY][ID][HASH][NONCE]

    115915 Default RECV Informational [HASH][NOTIFY] with NO_PROPOSAL_CHOSEN error

    115915 Default RECV Informational [HASH][DEL]

    115915 Default Gateway1-P1 deleted

    If you have an NO PROPOSAL CHOSEN error, check that the Phase 2 encryption algorithms are thesame on each side of the VPN Tunnel.

    Check Phase 1 algorithms if you have this:

    115911 Default (SA Gateway1-P1) SEND phase 1 Main Mode [SA][VID]

    115911 Default RECV Informational [NOTIFY] with NO_PROPOSAL_CHOSEN error

    5.6 INVALID ID INFORMATION error122623 Default (SA Gateway1-P1) SEND phase 1 Main Mode [SA][VID]

    122625 Default (SA Gateway1-P1) RECV phase 1 Main Mode [SA][VID]

    122625 Default (SA Gateway1-P1) SEND phase 1 Main Mode [KEY][NONCE]

    122626 Default (SA Gateway1-P1) RECV phase 1 Main Mode [KEY][NONCE]

    122626 Default (SA Gateway1-P1) SEND phase 1 Main Mode [ID][HASH][NOTIFY]

    122626 Default (SA Gateway1-P1) RECV phase 1 Main Mode [ID][HASH][NOTIFY]

    122626 Default phase 1 done: initiator id c364cd70: 195.100.205.112, responder id

    c364cd72: 195.100.205.114, src: 195.100.205.112 dst: 195.100.205.114

    122626 Default (SA Gateway1-Tunnel1-P2) SEND phase 2 Quick Mode

    [SA][KEY][ID][HASH][NONCE]

    122626 Default RECV Informational [HASH][NOTIFY] with INVALID_ID_INFORMATION error

    122626 Default RECV Informational [HASH][DEL]

    122626 Default Gateway1-P1 deleted

    If you have an INVALID ID INFORMATION error, check if Phase 2 ID (local address and networkaddress) is correct and match what is expected by the remote endpoint.

    Check also ID type (Subnet address and Single address). If network mask is not check, you are using aIPV4_ADDR type (and not a IPV4_SUBNET type).

    5.7 I clicked on Open tunnel , but nothing happens.Read logs of each VPN tunnel endpoint. IKE requests can be dropped by firewalls. An IPSec Client uses UDPport 500 and protocol ESP (protocol 50).

    5.8 The VPN tunnel is up but I cant ping !If the VPN tunnel is up, but you still cannot ping the remote LAN, here are a few guidelines:

    Check Phase 2 settings: VPN Client address and Remote LAN address. Usually, VPN Client IP addressshould not belong to the remote LAN subnet

    Once VPN tunnel is up, packets are sent with ESP protocol. This protocol can be blocked by firewall.

    Check that every device between the client and the VPN server does accept ESP Check your VPN server logs. Packets can be dropped by one of its firewall rules.

    Check your ISP support ESP

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    If you still cannot ping, follow ICMP traffic on VPN server LAN interface and on LAN computer interface(with Wireshark for example). You will have an indication that encryption works.

    Check the default gateway value in VPN Server LAN. A target on your remote LAN can receive pingsbut does not answer because there is a no Default gateway setting.

    You cannot access to the computers in the LAN by their name. You must specify their IP address insidethe LAN.

    We recommend you to install Wireshark (http://www.wireshark.org) on one of your target computer. Youcan check that your pings arrive inside the LAN.

    http://www.wireshark.org/http://www.wireshark.org/
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    6 ContactsNews and updates on TheGreenBow web site: http://www.thegreenbow.com

    Technical support by email at [email protected] contacts by email at [email protected]

    http://www.thegreenbow.com/http://www.thegreenbow.com/mailto:[email protected]:[email protected]:[email protected]?subject=Please%20call%20me%20backmailto:[email protected]?subject=Please%20call%20me%20backmailto:[email protected]?subject=Please%20call%20me%20backmailto:[email protected]://www.thegreenbow.com/