PIX firewall problem

Similar Questions

• VPN connection between two pix firewall problems

  Hi, trying to create a VPN between the firewall two pix a 501 and a 506e.

  currently on the 506th pdm shows 1 IKE tunnel in the stats, but it displays then return to zero. The two hosts of pix can access the web and ping each other gateways.

  I posted the 506th config but the 501 config is the same.

  outside IP for pix 506th = a.a.a.a

  outside IP for pix 501 = b.b.b.b

  Internet service provider ip of the gateway to 506th = x.x.x.x

  Thank you

  Alex

  Hi Alex

  See the configuration on the other side (PIX501) it will be difficult to solve, you'll need to be sure when it is a phase failure 1 or phase 2.

  Please note between the two PIX IPSec negotiation fails if both of the phases SAs IKE do not match on the peers.

  Cordially MJ

• Another "Tough" Pix 501 firewall problem

  Hello

  the other day, I posted a message of support to allow access to the servers from outside. I had recreated the real client installation in a laboratory test - including a simulated bridge - and everything worked perfectly well.

  Now that I tried to install the firewall on the site, I have a BIG problem - no client inside can connect to what anyone on the Internet.

  Here's the relevant part of the config:

  interface ethernet0 car

  interface ethernet1 100full

  access list outside permit tcp any host xxx.115.216.50 eq 3389

  access list outside permit tcp any host xxx.115.216.50 eq 25

  IP address outside xxx.115.216.50 255.255.255.0

  IP address inside 192.168.1.1 255.255.255.0

  Global 1 xxx.115.216.49 (outside)

  NAT (inside) 1 192.168.1.0 255.255.255.0 0 0

  static (inside, outside) tcp 3389 192.168.1.155 interface 3389 netmask 255.255.255.0 0 0

  public static tcp (indoor, outdoor) interface 25 192.168.1.199 25 netmask 255.255.255.0 0 0

  Access-group outside-outside interface

  Route outside 0.0.0.0 0.0.0.0 xxx.115.216.125 1

  dhcpd address 192.168.1.100 - 192.168.1.150 inside

  xxx.185.225.10 dns 192.168.1.199 dhcpd

  dhcpd wins 192.168.1.199

  dhcpd lease 921600

  dhcpd ping_timeout 750

  dhcpd field xxx.local

  dhcpd allow inside

  I ping the PIX inside interface from inside clients... and I can ping anything on the Internet from in the PIX firewall.

  In addition, the servers inside are accessed from the outside (tested to make sure).

  The problem is obviously - no inside clients can access the Internet.

  When I show xlate, I see that translations are actually happening, but there is no connectivity.

  According to the TAC knowledge base article, this configuration should work... by default for connections between the inside and outside are not blocked in any way, unless there is an access list configured. I also tried to disable the access list associated with the external interface. In the last step, I tried to use an IP address in another range for the address part (xxx.185.225.151 and I have addedd a route to the gateway proper with a metric of 2). I guess that nothing has worked...

  Suggestions very apprechiated!

  Cisco routers default arp cache time is 4 hours. I'm not sure of other possible suppliers. Try to install the avec.51 premise to check the operation, if it works, try the adresse.50 again. If you do not have a problem with mail not being is not accessible for about 4 hours maybe let it run long enough to test the theory of the arp...

• Site to Site PIX VPN problems

  Hi, I currently have a site to site vpn upward and running and it works fine. I try to put the other two online and just cannot make them work. I used the same configuration of one operation but I cannot get the next tunnel. I saw several errors when debugging isakmp and ipsec and they are at the end of my configs. Anyone have any ideas? Thank you

  Main site - a vpn clients connecting too it and pt to pt vpn to 3 endpoints

  Cisco PIX Firewall Version 6.3 (3)

  * Main Site Config *.

  client_vpn 10.10.0.0 ip access list allow 255.255.0.0 192.168.0.0 255.255.255.0

  VPN_to_Site2 10.10.0.0 ip access list allow 255.255.0.0 192.168.0.0 255.255.255.0

  NAT (inside) 0-list of access client_vpn

  Permitted connection ipsec sysopt

  Crypto ipsec transform-set esp-3des esp-md5-hmac fws_encry_set

  outside_map 60 ipsec-isakmp crypto map

  address for correspondence card crypto outside_map 60 VPN_to_Site2

  crypto outside_map 60 peer 64.X.X.19 card game

  card crypto outside_map 60 transform-set fws_encry_set

  outside_map interface card crypto outside

  ISAKMP allows outside

  ISAKMP key * address 64.X.X.19 netmask 255.255.255.255 No.-xauth-no-config-mode

  ISAKMP identity address

  ISAKMP nat-traversal 20

  part of pre authentication ISAKMP policy 10

  ISAKMP policy 10 3des encryption

  ISAKMP policy 10 md5 hash

  10 2 ISAKMP policy group

  ISAKMP life duration strategy 10 86400

  Site 2 config

  * only because the pt to pt does not work I have it set up to allow vpn clients to cross to connect to the main site.

  Cisco PIX Firewall Version 6.3 (5) *.

  permit access ip 192.168.0.0 list VPN_to_Main 255.255.255.0 10.10.0.0 255.255.0.0

  NAT (inside) 0-list of access VPN_to_Main

  Permitted connection ipsec sysopt

  Crypto ipsec transform-set esp-3des esp-md5-hmac fws_encry_set

  outside_map 10 ipsec-isakmp crypto map

  outside_map card crypto 10 corresponds to the address VPN_to_Main

  crypto outside_map 10 peer 207.X.X.13 card game

  card crypto outside_map 10 transform-set fws_encry_set

  outside_map interface card crypto outside

  ISAKMP allows outside

  ISAKMP key * address 207.X.X.13 netmask 255.255.255.255 No.-xauth-no-config-mode

  ISAKMP identity address

  ISAKMP nat-traversal 20

  part of pre authentication ISAKMP policy 10

  ISAKMP policy 10 3des encryption

  ISAKMP policy 10 md5 hash

  10 2 ISAKMP policy group

  ISAKMP life duration strategy 10 86400

  Errors

  PIX (config) # IPSEC (sa_initiate): ACL = deny; No its created

  authenticator is HMAC-MD5IPSEC (validate_proposal): invalid local address

  I have a link that works very well. I have copied the config from there, changed the ip info and it does not work. The only differences in the configs are no sysopt route dnat and it's on Version 6.2 (2)

  IPSec (sa_initiate): ACL = deny; No its created

  I think that you have configured a VPN tunnel without removing the cryptographic card of the external interface. The message above is the error we get in such situation.

  I suggest the following solution:

  -remove the external interface (the two pix) cryptographic card

  -Cree claire isa his and trendy clear ipsec his (the two pix)

  -Reapply the card encryption on external interfaces.

  If this doesn't solve the problem, restart the equipment.

  Kind regards

  Ajit

• PIX firewall Image issue

  Hello

  I'm without a firewall PIX 7.0 to 6.3 decommissioning. I faced the problem during the restart of the PIX.

  The error given below,

  Start the first image in flash

  Image must be at least 7-0-0-0 error in the flash file: / pix635.bin

  No bootable Flash image. Please download an image from a network server

  in monitor mode

  CISCO PIX FIREWALL SYSTEMS

  BIOS version shipped 4.3.207 01/02/02 16:12:22.73

  Compiled by Manu

  128 MB OF RAM

  Did you follow the exact downgrade procedure indicated on this link... you point the image as shown 6.3.x

  downgrade tftp://tftpserverip/pix63x.bin

  PIX downgrade procedure 7.x to 6.3.x

  http://www.Cisco.com/en/us/docs/security/ASA/asa70/pix_upgrade/upgrade/guide/pixupgrd.html#wp1810347

  in any case, you can always redownload the 6.3.5 new code in monitor mode.

  http://www.Cisco.com/en/us/products/HW/vpndevc/ps2030/products_tech_note09186a0080094a5d.shtml#upbootormon

  Let us know how it works.

  Rgds

  Jorge

• How to limit the ICMP on the PIX firewall.

  Guys good day!

  I have a dilemma with regard to limiting ICMP users browsing to other networks such as other demilitarized interns.

  I know that, to allow ICMP to pass through interfaces, you will need to create an ACL such as below:

  access-list DMZACL allow icmp a whole

  Users require this config ping a server on the DMZ, but it is a security risk.

  To minimize, I have a group of objects created in order to identify hosts and networks is allowed to have access to the echo-replies.

  Again, this is a problem since many host who extended pings just to monitor the connectivity server and its application.

  Do you have other ideas guys?

  As to limiting the echo answers on the PIX. As first 5 echo request succeed with 5 echo-replies and the rest would be removed.

  This could be done?

  Thank you

  Chris

  Hello.. I don't think you can do this by using an ACL on the PIX, however, you might be able to stop the ICMP sweeps by activating CODES signatures using the check ip command you... For more information see the link below

  Guidelines of use Cisco Intrusion Detection System (IDS Cisco) provides the following for IP-based systems:

  ? Audit of traffic. The application of signatures will be audited only as part of an active session.

  ? Apply to the verification of an interface.

  ? Supports different auditing policies. Traffic that matches a signature triggers a range of configurable

  actions.

  ? Disables signature verification.

  ? Always turns the shares of a class of signature and allows IDS (information, attack).

  The audit is performed by looking at IP packets to their arrival at an input interface, if a packet triggers

  a signature and the action configured does not have the package, and then the same package may trigger another

  signatures.

  Firewall PIX supports inbound and outbound audit.

  For a complete list signatures of Cisco IDS supported, their wording and whether they are attacking or

  informational messages, see Messages in Log System Cisco PIX Firewall.

  See the User Guide for the Cisco Secure Intrusion Detection System Version 2.2.1 for more information

  on each signature. You can view the? NSDB and Signatures? Chapter of this guide at the following

  website:

  http://www.Cisco.com/univercd/CC/TD/doc/product/iaabu/csids/csids1/csidsug/SIGs.htm

• Pix 501 problem, I can not receive smtp messages

  Currently, I can send messages but cannot receive the mail from the Internet, if I remove the Pix and connect directly to the Modem/router then I can SMTP on port 25 and SMTP mail works fine both in & out.

  All what we want this Pix to allow at present is:

  (a) access to Internet to all clients on the network internal

  (b) allow the customers to pop mail web e-mail accounts

  (c) we want to use Exchange & Outlook and accommodate our own email via the SMTP Protocol

  Please find attached two documents: -.

  1. a current edited config of my Pix 501 running

  2. a PowerPoint of my network diagram.

  I appreciate a lot of help.

  Vinny.

  I finally found the problem.

  On the ADSL router, you have configured the same 192.168.0.0/24 network you use behind the post office

  Server. This configuration will not work because it leads to a duplicate IP address range and you have routing

  problems.

  Change the configuration to another range of IP between the ADSL router and PIX firewall and everthing will be

  work.

  Note the address unique public IP that is configured, received is on the router Netgear ADSL uses all other interfaces

  public IP addresses.

  Recovery of the networks and the IPs:

  80.x.y.z/255.255.255.x = Netgear outside intellectual property

  192.168.2.0/255.255.255.0 = network between the internal Netgear and the PIX outside interface

  192.168.1.0/255.255.255.0 = network between the PIX inside and the external interface of the mail server

  192.168.0.0/255.255.255.0 = network between the internal interface of mail server and mail clients.

  Use 192.168.2.0 255.255.255.0 for this network, and then set it 192.168.2.1 for your ADSL router inside

  interface, use a static IP 192.168.2.2 255.255.255.0 on the PIX firewall outside interface.

  ADSL installation:

  You can choose on the Netgear between all public traffic of the 80.x.y.z IP to 192.168.2.2 transmission which is NAT or

  You can transfer to forward the http, pop3 and smtp, didn't really matter, it's just important that you NAT or PAT it

  for the PIX firewall.

  PIX installation example:

  All traffic received on the PIX outside interface for http, pop3 and smtp is then transmitted by 192.168.2.2 to mail

  the server 192.168.1.2 external IP address.

  outdoor IP 192.168.2.2 address 255.255.255.0

  IP address inside 192.168.1.1 255.255.255.0

  acl_out list access permit tcp any host 192.168.2.2 eq http

  acl_out list access permit tcp any host 192.168.2.2 pop eq

  acl_out list access permit tcp any host 192.168.2.2 eq smtp

  Access-group acl_out in interface outside

  static (inside, outside) tcp 192.168.2.2 80 192.168.1.2 80 netmask 255.255.255.255 0 0

  static (inside, outside) tcp 192.168.2.2 110 192.168.1.2 110 netmask 255.255.255.255 0 0

  static (inside, outside) tcp 192.168.2.2 25 192.168.1.2 25 netmask 255.255.255.255 0 0

  Global 1 interface (outside)

  NAT (inside) 1 0.0.0.0 0.0.0.0

  Route outside 0.0.0.0 0.0.0.0 192.168.2.1

  Installation of mail server:

  The mail server has a default route to the PIX firewall.

  Default gateway on the mail server = 192.168.1.1

  Do you have NAt or PAT on the mail server internal clients to the Internet in the direction of the PIX? If not, you need to add another road on the PIX, so know the PIX the 192.168.0.0/24 network is behind the e-mail server, as this unit is the routing for this network.

  Add a route on the PIX inside interface:

  Route inside 192.168.0.0 255.255.255.0 192.168.1.2

  E-mail clients:

  All mail clients have the internal IP address of mail as default gateway server.

  Default gateway = 192.168.0.3

  This configuration will work 100%

  Sorry if I you confused.

  sincerely

  Patrick

• Impossible to get online - reading HTTP/HTTPS/FTP Firewall problem

  I cannot get online and diagnosis to assess the problem.

  The error I get indicates that it is a firewall problem; However, when I disabled my firewall and tried to connect, it still wouldn't let me.  I ran the diagnostic and received an error message that passport.com certificate is expired.  It is said that the system could not connect over HTTP/HTTPS and FTP (passive) was able to connect.  Help, please.  Thank you!

  Sorry try this first...

  You can change the behavior of the Internet Connection Firewall by turning on various ICMP options, such as allow an incoming echo request, allow incoming timestamp request, allow incoming router requestand Allow redirect. Brief description of these options appear on the ICMP tab

  If your network uses Internet connection sharing to provide Internet access to multiple computers, it is recommended to activate the shared Internet connection on the Internet Connection Firewall. However, you can activate the shared Internet connection and Firewall Internet connection separately. It's a good idea to enable the ICF on the Internet connection on any Microsoft Windows XP computer that is connected directly to the Internet.

  Internet Connection Firewall can also help protect a single computer connected to the Internet. If you have a single computer connected to the Internet with a cable modem, a DSL modem, or a dial-up modem, Internet Connection Firewall protects your Internet connection. Do not cut the ICF for virtual private network (VPN) connections because Internet Connection Firewall interferes with file sharing and other VPN functions.

  ??????????????????????????????????????????????????????????????????????????????????????????????   OR

  http://support.Microsoft.com/kb/936211/en-us read up on that let me know if this helped.

  Internal modem

  To restart an internal modem, you must restart the computer. If you still experience network connectivity problems after you restart the computer, go to step 2. If you connect to the Internet using a router, there may be a problem with the configuration settings, and they must be updated. To determine if a network connectivity problem is caused by a bad configuration or a problem with the router, you can bypass the router and connect your computer directly to the modem.

  Warning Connect your computer directly to the Internet may be left vulnerable to attacks. To protect the computer against attacks, make sure that a firewall is installed and that the firewall is enabled on your computer. To learn more about the Windows Firewall that is included in Windows Vista, see the "Windows Firewall" section.

  Windows Firewall

  Windows Vista includes a firewall, called Windows Firewall. By default, the Windows Firewall is enabled. However, you should always check that the Windows Firewall is turned on before you connect the computer to the Internet. To verify that Windows Firewall is turned on, follow these steps:

  1. Click Startand then click Control Panel.
  2. In the search box in the upper right corner of Control Panel, type security.
  3. In the search results that appear, click the icon or the link to the Security Center. In the window that appears, you will see four bars that are titled firewall, automatic updating, malware protection, and other security settings.
  4. Click the arrow to the right in the firewall bar to expand the bar. The extended bar will display one of the following three options:
     1. If the firewall bar is green, it means that the firewall is enabled.
     2. If the firewall bar is red, you may see a message that the Windows Firewall is disabled. To turn on the Windows Firewall and cause the firewall bar to the center of safety to turn green, click activate now.
     3. If the firewall bar is red, and the message describes a problem with a third-party firewall program, we recommend that you disconnect the computer from the network and then contact the vendor of the firewall program for more information on how to activate the third-party firewall program.

• Access list ID # on a PIX firewall

  Is anyone know what of the identifier access list on a pix firewall?

  Standard IOS = 1-99

  Extended IOS is 100-199.

  SW = PIX?

  There is no "limit" by Word to say in the Pix. These limits are in IOS because they define what 'type' of acl, it's IE APPLETALK, IPX, IP etc etc. Pix IP is therefore not necessary for this type of identification.

  access-list 100000000000000; 1 items

  allow line of the access list 1 100000000000000 ip any a (hitcnt = 0)

  Jason

• Cisco ACS and Pix Firewall

  I have configured the aaa authentication in the pix firewall to see the ACS RADIUS Server for verification of the user. If the ACS server becomes unavailable, then I could not connet the pix firewall.

  In the router, I have the configuration option

  AAA authentication login default group Ganymede + local

  that tells the router first looking for a radius server and if is not available connect through the local database.

  Is there an option in the Cisco pix firewall to connect using local information if ACS is not available?

  Thanks in advance

  Hello

  PIX back up method to entered the unit in the event of server failure aaa works on 6.3.4 code and above. In the codes plus late 6.3.4 If the RADIUS server fails it is impossible to get in unless password recovery. "However if we have not configured for console aaa authentication than user name: pix and password: cisco" works by default.

  Kind regards

  Mahmoud Singh

• PIX firewall software

  Hi guys,.

  I am looking to download IOS ver 4,0000 for PIX 515E, but can't seem to find anywhere in the downloads/security section. The only version they have is 8.0.4.

  Anyone know where I could find all earlier versions?

  Thank you very much

  Elena

  Elena, when you go to download box, choose any version 8.0, then window right side you will see a text saying previous software release click on this hyperlink and it will take you to all versions including 7.x

  http://tools.cisco.com/support/downloads/go/ImageList.x?relVer=8.0.4&mdfid=277072390&sftType=PIX+Firewall+Software&optPlat=&nodecount=2&edesignator=ED&modelName=Cisco+PIX+515E+Security+Appliance&treeMdfId=268438162&treeName=Security&modifmdfid=&imname=&hybrid=Y&imst=N&lr=Y

  but here's the direct link

  http://www.Cisco.com/cgi-bin/tablebuild.pl/PIX

  Concerning

• Allowing L2TP to pass through PIX Firewall

  Hi all

  Can someone help me on how to allow inbound l2tp connection on a pix? Behind the pix firewall, there is an ISA server as a vpn l2tp server. I can't allow l2tp on the pix.

  Thank you very much!

  Please use this doc as a guide-

  http://www.Cisco.com/en/us/products/HW/vpndevc/ps2030/products_configuration_example09186a0080094a5a.shtml

  Jon

• How can I clear counters access-list on a pix firewall

  How can I erase the hitcounts on an on a pix firewall access list without resetting the pix?

  It would be clear access-list on a router counters.

  Thanks in advance

  Steve

  access list counters Clear

• To block P2P traffic on the PIX firewall

  What will be the mechanism, and how we can block the traffic of P2P applications like eDonkey, KaZaa and Imesh etc on the PIX firewall.

  Hello

  You can find the info here:

  http://www.Cisco.com/en/us/Tech/tk583/TK372/technologies_tech_note09186a00801e419a.shtml

  I hope this helps.

  Jay

• PIX firewall vpn Sonicwall

  Hello.

  My question is this.

  It is possible to establish a VPN between a PIX Firewall and Sonicwall firewall?.

  To be like that, where I can find documentation on the matter?

  Thanks in advance.

  Dear.

  Both Sonicwall conforms to standards, which they do, then Yes, you can create a VPN between them.

  I don't think we have PIX, Sonicwall example config specifically, but the config on the PIX is still pretty standard, no matter what you connect to.

  SonicWALL has an example here: ftp://ftp.sonicwall.com/pub/info/vpn/CiscoPIX.pdf