PIX 501 - VPN - based

Hello

I am considering the implementation of a vpn pptp on win2k server behind a pix 501 firewall (+ nat) with only 1 static IP address. I will also have to have at least 2-3 Terminal Server client connected simultaneously.

The Terminal Server service will pass through vpn tunnel.

Can this be achieved? A local Tech told me that I need at least 2 IP addresses.

Thank you

Mike

For Terminal Server services, you can do it with just an IP address that is assigned to the external interface of the PIX, just create a static mapped port to port 3389 thru peripheral inward.

For PPTP, you must however an IP address separate, different from that assigned to the PIX outside the int. This is because PPTP uses two TCP/1723 and GRE protocols. You can create a static mapped ports for TCP/1723 through the PPTP server, but you can't do it for the GRE. This is because GRE is not a TCP/UDP protocol, it is located just above IP and has therefore no port number to map through. You need an IP address unique address and card. You config should look like this:

list of allowed inbound tcp access any host 200.1.1.1 eq 1723

list of allowed incoming access will any host 200.1.1.1

Access-group interface incoming outside

public static 200.1.1.1 (indoor, outdoor) 10.1.1.1 netmask 255.255.255.255

where 200.1.1.1 is your second (different from the PIX off int) routable IP address 10.1.1.1 is your PPTP server inside

If you only want to use an IP address, why don't the PIX not set itself up as a PPTP server and put an end to your connections on this. The PPTP client end simply on the PIX outside IP address, and you will not need all the others.

See http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a0080143a5d.shtml for more details.

Tags: Cisco Security

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

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    Hello

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

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    See the race
    : Saved
    :
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    <--- more="" ---="">

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    Hello

    At least the NAT0 ACL is not in use

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    -Jouni

  • VPN with PIX 501

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  • L2l IPSec VPN 3000 and PIX 501

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    Any help or advice are appreciated.

    I just noticed that the PIX firewall, the phase 1 paramateres are not configured. You must configure the same PASE 1 and phase 2 settings on both ends of the tunnel.

    For example, on CVPN 3000, you have configured settings Phase 1 as 3DES, pre-shared key etc... We have the same configuration on the PIX firewall too.

    Here is an example of sample config

    http://www.Cisco.com/en/us/products/HW/vpndevc/ps2284/products_configuration_example09186a00800949d2.shtml

    I hope this helps!

  • PIX 501 for Cisco 3640 VPN router

    -Start ciscomoderator note - the following message has been changed to remove potentially sensitive information. Please refrain from publishing confidential information about the site to reduce the risk to the security of your network. -end of the note ciscomoderator-

    Have a 501 PIX and Cisco 3640 router. The 3640 is configured for dynamic map for VPN. The PIX 501 is set to pointing to the 3640 router static map. I can establish a tunnel linking the PIX to the router and telnet to a machine AIX on the inside network to the router. When I try to print on the network of the PIX 501 inside it fails.

    What Miss me? I added the configuration for the PIX and the router.

    Here are the PIX config:

    PIX Version 6.1 (1)

    ethernet0 nameif outside security0

    nameif ethernet1 inside the security100

    enable encrypted password xxxxxxxxxxxxxxxx

    xxxxxxxxxxxxx encrypted passwd

    pixfirewall hostname

    fixup protocol ftp 21

    fixup protocol http 80

    fixup protocol h323 1720

    fixup protocol rsh 514

    fixup protocol rtsp 554

    fixup protocol smtp 25

    fixup protocol sqlnet 1521

    fixup protocol sip 5060

    fixup protocol 2000 skinny

    names of

    pager lines 24

    interface ethernet0 10baset

    interface ethernet1 10full

    Outside 1500 MTU

    Within 1500 MTU

    IP address outside dhcp setroute

    IP address inside 192.168.1.1 255.255.255.0

    alarm action IP verification of information

    alarm action attack IP audit

    PDM logging 100 information

    history of PDM activate

    ARP timeout 14400

    Global 1 interface (outside)

    NAT (inside) 1 0.0.0.0 0.0.0.0 0 0

    Timeout xlate 0:05:00

    Timeout conn 01:00 half-closed 0: 10:00 udp 0:02:00 CPP 0: h323 from 10:00 0:05:00 sip 0:30:00 sip_media 0:02:00

    Timeout, uauth 0:05:00 absolute

    GANYMEDE + Protocol Ganymede + AAA-server

    RADIUS Protocol RADIUS AAA server

    Enable http server

    http 192.168.1.0 255.255.255.0 inside

    No snmp server location

    No snmp Server contact

    SNMP-Server Community public

    No trap to activate snmp Server

    enable floodguard

    No sysopt route dnat

    Telnet timeout 5

    SSH timeout 5

    dhcpd address 192.168.1.2 - 192.168.1.33 inside

    dhcpd lease 3600

    dhcpd ping_timeout 750

    dhcpd outside auto_config

    dhcpd allow inside

    Terminal width 80

    Cryptochecksum:XXXXXXXXXXXXXXXXXXX

    : end

    Here is the router config

    Router #sh runn

    Building configuration...

    Current configuration: 6500 bytes

    !

    version 12.2

    no service button

    tcp KeepAlive-component snap-in service

    a tcp-KeepAlive-quick service

    horodateurs service debug datetime localtime

    Log service timestamps datetime localtime

    no password encryption service

    !

    router host name

    !

    start the flash slot1:c3640 - ik9o3s - mz.122 - 16.bin system

    queue logging limit 100

    activate the password xxxxxxxxxxxxxxxxx

    !

    clock TimeZone Central - 6

    clock summer-time recurring CENTRAL

    IP subnet zero

    no ip source route

    !

    !

    no ip domain-lookup

    !

    no ip bootp Server

    inspect the name smtp Internet IP

    inspect the name Internet ftp IP

    inspect the name Internet tftp IP

    inspect the IP udp Internet name

    inspect the tcp IP Internet name

    inspect the name DMZ smtp IP

    inspect the name ftp DMZ IP

    inspect the name DMZ tftp IP

    inspect the name DMZ udp IP

    inspect the name DMZ tcp IP

    audit of IP notify Journal

    Max-events of po verification IP 100

    !

    crypto ISAKMP policy 1

    BA 3des

    preshared authentication

    Group 2

    !

    crypto ISAKMP policy 20

    BA 3des

    preshared authentication

    Group 2

    ISAKMP crypto key address x.x.180.133 xxxxxxxxxxx

    ISAKMP crypto keys xxxxxxxxxxx address 0.0.0.0 0.0.0.0

    !

    !

    Crypto ipsec transform-set esp-3des esp-sha-hmac vpn test

    Crypto ipsec transform-set esp-3des esp-sha-hmac PIXRMT

    !

    dynamic-map crypto dny - Sai 25

    game of transformation-PIXRMT

    match static address PIX1

    !

    !

    static-card 10 map ipsec-isakmp crypto

    the value of x.x.180.133 peer

    the transform-set vpn-test value

    match static address of Hunt

    !

    map ISCMAP 15-isakmp ipsec crypto dynamic dny - isc

    !

    call the rsvp-sync

    !

    !

    !

    controller T1 0/0

    framing ESF

    linecode b8zs

    Slots 1-12 channels-group 0 64 speed

    Description controller to the remote frame relay

    !

    controller T1 0/1

    framing ESF

    linecode b8zs

    Timeslots 1-24 of channel-group 0 64 speed

    Description controller for internet link SBIS

    !

    interface Serial0/0:0

    Description CKT ID 14.HXGK.785129 Frame Relay to Remote Sites

    bandwidth 768

    no ip address

    no ip redirection

    no ip unreachable

    no ip proxy-arp

    encapsulation frame-relay

    frame-relay lmi-type ansi

    !

    interface Serial0 / point to point 0:0.17

    Description Frame Relay to xxxxxxxxxxx location

    IP unnumbered Ethernet1/0

    no ip redirection

    no ip unreachable

    no ip proxy-arp

    IP nat inside

    No arp frame relay

    dlci 17 frame relay interface

    !

    interface Serial0 / point to point 0:0.18

    Description Frame Relay to xxxxxxxxxxx location

    IP unnumbered Ethernet1/0

    no ip redirection

    no ip unreachable

    no ip proxy-arp

    IP nat inside

    No arp frame relay

    dlci 18 frame relay interface

    !

    interface Serial0 / point to point 0:0.19

    Description Frame Relay to xxxxxxxxxxx location

    IP unnumbered Ethernet1/0

    no ip redirection

    no ip unreachable

    no ip proxy-arp

    IP nat inside

    No arp frame relay

    dlci 19 frame relay interface

    !

    interface Serial0 / point to point 0:0.20

    Description Frame Relay to xxxxxxxxxxxxx location

    IP unnumbered Ethernet1/0

    no ip redirection

    no ip unreachable

    no ip proxy-arp

    IP nat inside

    No arp frame relay

    dlci 20 frame relay interface

    !

    interface Serial0 / point to point 0:0.21

    Description Frame Relay to xxxxxxxxxxxx

    IP unnumbered Ethernet1/0

    no ip redirection

    no ip unreachable

    no ip proxy-arp

    IP nat inside

    No arp frame relay

    dlci 21 frame relay interface

    !

    interface Serial0 / point to point 0:0.101

    Description Frame Relay to xxxxxxxxxxx

    IP unnumbered Ethernet1/0

    no ip redirection

    no ip unreachable

    no ip proxy-arp

    IP nat inside

    No arp frame relay

    dlci 101 frame relay interface

    !

    interface Serial0/1:0

    CKT ID 14.HCGS.785383 T1 to ITT description

    bandwidth 1536

    IP address x.x.76.14 255.255.255.252

    no ip redirection

    no ip unreachable

    no ip proxy-arp

    NAT outside IP

    inspect the Internet IP on

    no ip route cache

    card crypto ISCMAP

    !

    interface Ethernet1/0

    IP 10.1.1.1 255.255.0.0

    no ip redirection

    no ip unreachable

    no ip proxy-arp

    IP nat inside

    no ip route cache

    no ip mroute-cache

    Half duplex

    !

    interface Ethernet2/0

    IP 10.100.1.1 255.255.0.0

    no ip redirection

    no ip unreachable

    no ip proxy-arp

    IP nat inside

    no ip route cache

    no ip mroute-cache

    Half duplex

    !

    router RIP

    10.0.0.0 network

    network 192.168.1.0

    !

    IP nat inside source list 112 interface Serial0/1: 0 overload

    IP nat inside source static tcp 10.1.3.4 443 209.184.71.138 443 extensible

    IP nat inside source static tcp 10.1.3.4 9869 209.184.71.138 9869 extensible

    IP nat inside source 10.1.3.2 static 209.184.71.140

    IP nat inside source static 10.1.3.6 209.184.71.139

    IP nat inside source static 10.1.3.8 209.184.71.136

    IP nat inside source static tcp 10.1.3.10 80 209.184.71.137 80 extensible

    IP classless

    IP route 0.0.0.0 0.0.0.0 x.x.76.13

    IP route 10.2.0.0 255.255.0.0 Serial0 / 0:0.19

    IP route 10.3.0.0 255.255.0.0 Serial0 / 0:0.18

    IP route 10.4.0.0 255.255.0.0 Serial0 / 0:0.17

    IP route 10.5.0.0 255.255.0.0 Serial0 / 0:0.20

    IP route 10.6.0.0 255.255.0.0 Serial0 / 0:0.21

    IP route 10.7.0.0 255.255.0.0 Serial0 / 0:0.101

    no ip address of the http server

    !

    !

    PIX1 static extended IP access list

    IP 10.1.0.0 allow 0.0.255.255 192.168.1.0 0.0.0.255

    IP access-list extended hunting-static

    IP 10.1.0.0 allow 0.0.255.255 192.168.1.0 0.0.0.255

    extended IP access vpn-static list

    ip permit 192.168.1.0 0.0.0.255 10.1.0.0 0.0.255.255

    IP 192.0.0.0 allow 0.255.255.255 10.1.0.0 0.0.255.255

    access-list 1 refuse 10.0.0.0 0.255.255.255

    access-list 1 permit one

    access-list 12 refuse 10.1.3.2

    access-list 12 allow 10.1.0.0 0.0.255.255

    access-list 12 allow 10.2.0.0 0.0.255.255

    access-list 12 allow 10.3.0.0 0.0.255.255

    access-list 12 allow 10.4.0.0 0.0.255.255

    access-list 12 allow 10.5.0.0 0.0.255.255

    access-list 12 allow 10.6.0.0 0.0.255.255

    access-list 12 allow 10.7.0.0 0.0.255.255

    access-list 112 deny ip host 10.1.3.2 everything

    access-list 112 refuse ip 10.1.0.0 0.0.255.255 192.168.1.0 0.0.0.255

    access-list 112 allow ip 10.1.0.0 0.0.255.255 everything

    access-list 112 allow ip 10.2.0.0 0.0.255.255 everything

    access-list 112 allow ip 10.3.0.0 0.0.255.255 everything

    access-list 112 allow ip 10.4.0.0 0.0.255.255 everything

    access-list 112 allow ip 10.5.0.0 0.0.255.255 everything

    access-list 112 allow ip 10.6.0.0 0.0.255.255 everything

    access-list 112 allow ip 10.7.0.0 0.0.255.255 everything

    access-list 120 allow ip host 10.100.1.10 10.1.3.7

    not run cdp

    !

    Dial-peer cor custom

    !

    !

    !

    !

    connection of the banner ^ CCC

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

    WARNING - Unauthorized USE strictly PROHIBITED!

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

    ^ C

    !

    Line con 0

    line to 0

    password xxxxxxxxxxxx

    local connection

    Modem InOut

    StopBits 1

    FlowControl hardware

    line vty 0 4

    exec-timeout 15 0

    password xxxxxxxxxxxxxx

    opening of session

    !

    end

    Router #.

    Add the following to the PIX:

    > permitted connection ipsec sysopt

    This indicates the PIX around all ACLs for IPsec traffic. Now that your IPSec traffic is still subject to the standard rules of PIX, so launched inside the traffic is allowed to go in, but off-initiated traffic is not.

  • VPN between cisco unified customer 3.6.3 and Pix 501 6.2 (1) with the MS CA server

    Hello

    I have Microsoft CA server with the latest support CEP and pix 501 that gets the digital certificate. I also have the client certificate of Cisco, but VPN doesn't work

    In the IPSec Log Viewer, I constantly "CM_IKE_ESTABLISH_FAIL."

    It worked well prior to Win2k server has been completely updated with the latest patches.

    The pix configuration is identical to that of article http://www.cisco.com/warp/public/471/configipsecsmart.html

    I reinstall the stand-alone CA and support CEP server but not had any luck.

    What could be wrong?

    It looks like IKE implementation problem. Make DH group 2 policy ISAKMP.

    Visit this link:

    http://www.Cisco.com/univercd/CC/TD/doc/product/iaabu/PIX/pix_v53/IPSec/exvpncl.htm

  • Place a FIOS for VPN router behind PIX 501

    I have a Verizon FIOS internet connection and one of their routers wide wireless broadband, and this is a configuration of base completely... their router DHCP and firewalls, and the connection has a dynamic address.  I would put the PIX 501 behind the Verizon router as one of its clients and make the VPN PIX of other PIX 501 at other locations, such as my entire network has access to remote networks.

    Is this possible, and if yes, any who could some suggest configurations (how to address internal and external, static routes ports that may be required somewhere, etc.)?

    Thanks for any help.

    When installing my FiOS, I had already asked that it be installed on the Ethernet cable. Don't know they need to do something for you to spend the coax to Ethernet.

    The best way to test it would be to find the Media Converter (follow the coaxial cable between your FiOS router to the demarc and there should be a box with a coaxial port, some phone Sockets and an Ethernet port). If you unplug the coaxial cable and plug a laptop computer on the Ethernet port, see if your laptop takes a public IP address. If Yes, then you just have to run to your PIX501 Ethernet cable and you should be ready.

    Just to note that Verizon, according to your region, reserved DHCP assignments. This means that you may need to call Verizon and ask them to release the previous assignment of DHCP-MAC addresses. I had this happen recently. They must release the assignment then your PIX will pull a new IP address and they will book your new IP - MAC address assignment. They do this to speed up the connection to a cold start time on the router.

    Basically, they are filtering by MAC address, but rather through a sticky ARP where they clear the entry, and then the next device that connects records his MAC address and then only that device is permitted to connect to this leg of the cable. So there is a bit of work you have to do, but the most difficult part would be sitting on hold waiting for a tech, if you call to Verizon.

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