Public static political static NAT in conflict with NAT VPN

Similar Questions

• public static nat/global vs

  Excluding an access list, what is the difference between:

  NAT (inside) 1 172.16.5.10 net 255.255.255.255

  192.168.5.10 (outside) 1 global net 255.255.255.255

  and

  static (inside, outside) 1 192.168.5.10 172.16.5.10 net 255.255.255.255

  Thank you.

  in static reality must be combined with the access list for a two-way communication... You are right in a sense that

  public static nat/global access-list =

  Basically, the rule is that the traffic is allowed more high to low infterface of default security

  BUT

  from the lowest to the highest security of communication you need an access as well as the STATIC list

  Thank you

  Nadeem

• Public static NAT vs. Access-List

  Hello

  I have a question what is the best practice static NAT and access list. Example:

  Server (192.168.1.1) Web inside to outside (10.10.10.10) with the port 80 and 443.

  IP nat inside source static tcp 192.168.1.1 80 10.10.10.10 80

  IP nat inside source static tcp 192.168.1.1 10.10.10.10 443 443

  Or

  IP nat inside source static 192.168.1.1 10.10.10.10

  Access-list 101 permit tcp any host 10.10.10.10 eq 80

  Access-list 101 permit tcp any host 10.10.10.10 eq 443

  interface ethernet0
  IP access-group 101 in

  Thank you

  The operational reasons - it will break things.

• Political L2L NAT and static NAT VPN

  Here's the scenario:  I'm to establish a VPN L2L.  When you try to determine who hosts inside my network access hosts on the remote network through the VPN, I can't get a straight answer from officials.

  My thought was to use a private network of 10.17.24.0/24 and NAT all hosts on my inside the network to 10.17.24.x.  As a side note, the hosts of my inner network can be on any subnet in the beach of 172.12.x.0.  I would then put 10.17.24.0/24 in my interesting traffic for my ACL crypto.  From the hosts inside my network need to browse Internet AND communicate with hosts on the remote network through the VPN, I was going to try to do this with policy NAT. is it possible to use NAT policy in this case?  Or what I need to use static? I start with static but could not navigate the Internet eventually.  I know I'm missing something with the static, but can not understand.  I'm still pretty new to all this stuff so please forgive my ignorance.

  For example:

  
  

  access-list allowed NAT1 host ip 172.21.1.1 REMOTEL2L_SUBNET
  access-list allowed NAT2 host ip 172.21.2.5 REMOTEL2L_SUBNET
  access-list allowed host ip 172.21.15.7 REMOTEL2L_SUBNET VIH3

  static (in, out) 10.17.24.1 access-list NAT1
  static (in, out) 10.17.24.2 access-list NAT2
  static (in, out) 10.17.24.3 access-list VIH3

  The above configuration will be NAT 172.21.1.1 to 10.17.24.1 when you go to the remote subnet (across the L2L).

  The same behavior for other hosts.

  The important thing is that the ACL for crypto will come from the address using a NAT:

  list of allowed VPN ip 10.17.24.1 REMOTEL2L_SUBNET host access
  list of allowed VPN ip 172.17.24.2 REMOTEL2L_SUBNET host access
  list of allowed VPN ip 172.17.24.3 REMOTEL2L_SUBNET host access

  Or just the whole subnet:

  VPN ip 172.17.24.0 access list allow 255.255.255.0 REMOTEL2L_SUBNET

  The important thing is that interesting traffic matches at both ends!

  In addition, you can still provide Internet and local as normally...

  Internet access:

  NAT (inside) 1 172.21.0.0 255.255.0.0

  Global 1 interface (outside)

  It will be useful.

  Federico.

• Static NAT with the road map for excluding the VPN

  We have problems of access to certain IPs NATted static via a VPN.  After some research, we have learned that you have to exclude traffic destined for the VPN to the static NAT using a road map. So we did this:

  10.1.1.x is the VPN IP pool.

  access-list 130 refuse ip 192.168.1.0 0.0.0.255 10.1.1.0 0.0.0.255
  access-list 130 allow ip 192.168.1.0 0.0.0.255 any

  sheep allowed 10 route map
  corresponds to the IP 130

  IP nat inside source static 192.168.1.5 1.1.1.1 sheep map route

  Above worked to fix the VPN but the IP 192.168.1.5 is no longer publicly available via 1.1.1.1.  What seems to happen, is that the static NAT is not really work and this IP address is NATted with the IP of PAT.

  Any ideas on how to get this to work?

  Thank you
  Diego

  Hello

  The following example details exactly your case:

  http://www.Cisco.com/en/us/Tech/tk583/TK372/technologies_configuration_example09186a0080094634.shtml

  Try to replace the 192.168.1.0 subnet by the host address.

  It should work

  HTH

  Laurent.

• Static NAT problem with PIX501

  Hi all

  We have problems with our PIX firewall. We have configured PIX 501 with static NAT for our Web server. Here's the running configuration.

  6.3 (4) version PIX

  interface ethernet0 car

  interface ethernet1 100full

  ethernet0 nameif outside security0

  nameif ethernet1 inside the security100

  pixfirewall hostname

  domain ciscopix.com

  fixup protocol dns-length maximum 512

  fixup protocol ftp 21

  fixup protocol h323 h225 1720

  fixup protocol h323 ras 1718-1719

  fixup protocol http 80

  fixup protocol rsh 514

  fixup protocol rtsp 554

  fixup protocol sip 5060

  fixup protocol sip udp 5060

  fixup protocol 2000 skinny

  fixup protocol smtp 25

  fixup protocol sqlnet 1521

  fixup protocol tftp 69

  names of

  access-list 101 permit tcp any host x.x.x.26 eq www

  access-list 101 permit tcp any host x.x.x.26 EQ field

  access-list 101 permit udp any host x.x.x.26 EQ field

  pager lines 24

  Outside 1500 MTU

  Within 1500 MTU

  IP address outside x.x.x.28 255.255.255.248

  IP address inside 192.168.90.1 255.255.255.0

  alarm action IP verification of information

  alarm action attack IP audit

  location of PDM 192.168.90.0 255.255.255.0 inside

  history of PDM activate

  ARP timeout 14400

  Global 1 interface (outside)

  NAT (inside) 1 0.0.0.0 0.0.0.0 0 0

  static (inside, outside) x.x.x.26 192.168.90.3 netmask 255.255.255.255 0 0

  Access-group 101 in external interface

  Route outside 0.0.0.0 0.0.0.0 x.x.x.25 1

  Route inside 192.168.1.0 255.255.255.0 192.168.90.2 1

  Timeout xlate 03:00

  Timeout conn 01:00 half-closed 0:10:00 udp 0: CPP 02:00 0:10:00 01:00 h225

  H323 timeout 0:05:00 mgcp 0: sip from 05:00 0:30:00 sip_media 0:02:00

  Timeout, uauth 0:05:00 absolute

  GANYMEDE + Protocol Ganymede + AAA-server

  AAA-server GANYMEDE + 3 max-failed-attempts

  AAA-server GANYMEDE + deadtime 10

  RADIUS Protocol RADIUS AAA server

  AAA-server RADIUS 3 max-failed-attempts

  AAA-RADIUS deadtime 10 Server

  AAA-server local LOCAL Protocol

  Enable http server

  http 192.168.90.0 255.255.255.0 inside

  No snmp server location

  No snmp Server contact

  SNMP-Server Community public

  No trap to activate snmp Server

  enable floodguard

  Telnet timeout 5

  SSH timeout 5

  Console timeout 0

  Terminal width 80

  : end

  the problem is the configuration, we are unable to access the web server both inside and outside the network.

  All input will be greatly appreciated.

  Kind regards

  udimpas

  activate icmp backtrace and then ping the x.x.x.26 of the internet. the output should be as below:

  3363574:-out ICMP echo request: ID = 21834 seq = 1202 length = 80

  3363575: ICMP echo request: external untranslating: inside: 192.168.90.3

  3363576: ICMP echo-reply from the inside: 192.168.90.3 ID = 21834 seq = 1202 length = 80

  3363577: response to ICMP echo -: translate inside: 192.168.90.3 out:

  by doing this, you can 1. Check the nat 2. If the server responds to the internet.

  do not forget to allow incoming icmp:

  access-l 101 permit icmp any one

• Dual active/passive failover of ISP with static Nat on Cisco 1941

  Hello world

  I'm working on a configuration of a client and I have everything in place right now except the NAT' static ing.  The config fails during an ISP to another and track als and routes by default static weighted, the PAT rocking with course to each interface maps.  It is, is it possible to switch on the large amount of static NAT entries to the ISP of backup?  So far, everything I've read said no because you can have only one entry per ip/port combo, other than another configuration static NAT double server with a different IP address.  I just want to be sure before making my recommendations, all thoughts are greatly appreciated.

  Thank you

  Brandon

  In fact, you can also long as you use standard NAT ("ip nat inside source static") or not NVI ('ip nat static source') for your attackers. You apply the roadmap by the end of the static NAT statement to indicate which interface it should apply to. So, if you have something like this:

   ip access-list extended ACL_NAT permit ip 192.168.0.0 255.255.255.0 any ! route-map RM_NAT_ISP1 match ip address ACL_NAT match interface GigabitEthernet0/1 ! route-map RM_NAT_ISP2 match ip address ACL_NAT match interface GigabitEthernet0/2 

  Using port 80/tcp for example, you can do this:

   ip nat inside source static tcp x.x.x.x 80 y.y.y.y 80 route-map RM_NAT_ISP1 ip nat inside source static tcp x.x.x.x 80 z.z.z.z 80 route-map RM_NAT_ISP2 

  Just replace x.x.x.x with the LAN address of the machine that you are shipping y.y.y.y with the WAN address you are shipping on isps1 and z.z.z.z with the address of the ISP WAN you are shipping on ISP2. The static NAT will be conditional on the roadmap, at this point.

  This works with TCP, UDP, and IP forwarding, but does not require that you use an IPv4 address to your WAN address. For some reason, it does not work if you use an interface... so if you're using dynamic addresses, it will be more complicated.

• VPN with static nat for a whole subnet

  Hey there,

  For some reason, I can't do this on the router. Errrr...

  I'm trying to config a static nat (many to one), which will be in effect only when traffic needs to go on our vpn tunnel to the remote location.

  example:

  internal LAN 192.168.0.0

  remote network: 10.10.10.0 and 10.10.15.0

  When traffic passes over the tunnel vpn - at the remote site, I need to translate my internal network (192.168.0.0) to an ip address 172.16.32.65 static

  any ideas?

  also on my crypto map ACL, which must be specified for interesting traffic? my local network or static ip address search?

  Let me know your thoughts on the matter.

  Kind regards

  R.

  NAT you describe is named PAT or overload, at least in terms of Ciscos...

  What you need:

  (1) a NAT - ACL when you describe your traffic which should be natted.

  (2) a nat pool with your 172.16.32.65 address

  (3) a statement-NAT for dynamic NAT inside based on the ACL for the pool

  Here are some examples:

  http://www.Cisco.com/en/us/docs/iOS/ipaddr/configuration/guide/iadnat_addr_consv_ps10591_TSD_Products_Configuration_Guide_Chapter.html#wp1073436

  Your crypto ACL then referred to the NATted IP as NAT happens before encryption.

• Help with public static functions.

  Hey everyone, I worked on a problem for a while and have finally understood just wrong. Google is not helped me to find the right way, so I'm posting it here. I sort of understand what's wrong with my code, but I have no idea how to do right. I'm a total noob to AS3, this is my first project.

  I have a main FLA file called game.fla with nothing on the stage, starting with. The document class is Main.as (shown below). The main class is supposed to manage the switching between the preLoader, mainMenu and game itself. The preloader loads and the player must press play to go to the main menu. The main menu is controlled by MainMenu.as, which adds event listeners for buttons game, instructions and credits. At the present time, instructions and credits just draw responses. When you click on play, I want to remove the mainmenu (not a problem with parent.removeChild (this)); and add the game. This is my problem comes in. I can't say parent.addChild (game), because honestly, I don't know how (I need to set a variable in hand or MainMenu and must it be public, static, etc?). Simplicity seems to be a function called initializeGame() that I could simply call of mainMenu. Problem: I have to do a static function, which doesn't let me use addChild, removeChild or any other variable that I create. Could someone please explain how I could do this job (even if it means change my structure. "I would be happy to learn a better way to deal with this kind of thing). Also, on a side note: if I can't use the static function with add or remove a child, can I optimize the effect later? I want later in my game, that I would need to call functions between classes, on a button click, for example, that affect the scene (or objects in the scene). Can I do it another way? For example, by clicking on an icon of the video game card clip, I would map the movieclip to load. A function that could be described seems the best way to do it, but I'm sure he can otherwise. Thank you much in advance. My code is below.

  Main.As

  package
  {
      import flash.display.MovieClip;
      import flash.events.Event;
      import flash.events.MouseEvent;
  
      public class Main extends MovieClip
      {
          private var preLoader:PreLoader;
          private var mainMenu:MainMenu;
          private var game:Game;
          
          public function Main()
          {
              preLoader = new PreLoader;
              addChild(preLoader);
              preLoader.gotoAndStop(1);
              addEventListener(Event.ENTER_FRAME, barLoading);
          }
          private function barLoading(event:Event):void
          {
              var total:Number = stage.loaderInfo.bytesTotal;
              var loaded:Number = stage.loaderInfo.bytesLoaded;
              preLoader.loadingBar.scaleX = loaded/total;
              
              if (loaded==total)
              {
                  removeEventListener(Event.ENTER_FRAME, barLoading);
                  preLoader.gotoAndStop(2);
                  preLoader.doneLoading.addEventListener(MouseEvent.CLICK, doneLoading);
                  loaded = null;
                  total = null;
              }
          }
          private function doneLoading(event:MouseEvent):void
          {
              preLoader.doneLoading.removeEventListener(MouseEvent.CLICK, doneLoading);
              mainMenu = new MainMenu;
              addChild(mainMenu);
              removeChild(preLoader);
          }
          static public function initializeGame():void
          {
              game = new Game;
              removeChild(mainMenu);
              addChild(game);
          }
      }
  }
  

  MainMenu.as

  package
  {
      import flash.display.MovieClip;
      import flash.events.Event;
      import flash.events.MouseEvent;
  
      public class MainMenu extends MovieClip
      {
          
          public function MainMenu()
          {
              playGameButton.addEventListener(MouseEvent.CLICK, playGameButtonFunction);
              instructionsButton.addEventListener(MouseEvent.CLICK, instructionsButtonFunction);
              creditsButton.addEventListener(MouseEvent.CLICK, creditsButtonFunction);
          }
          private function playGameButtonFunction(event:MouseEvent):void
          {
              playGameButton.removeEventListener(MouseEvent.CLICK, playGameButtonFunction);
              instructionsButton.removeEventListener(MouseEvent.CLICK, instructionsButtonFunction);
              creditsButton.removeEventListener(MouseEvent.CLICK, creditsButtonFunction);
                          
          }
          private function instructionsButtonFunction(event:MouseEvent):void
          {
              instructionsButton.removeEventListener(MouseEvent.CLICK, instructionsButtonFunction);
              trace("instructions");
          }
          private function creditsButtonFunction(event:MouseEvent):void
          {
              creditsButton.removeEventListener(MouseEvent.CLICK, creditsButtonFunction);
              trace("credits");
          }
      }
  }
  

  In addition, anny comments on my coding habits and how to improve are welcome.

  in the hand

  var preloader: Preloader = new Preloader (();)

  preloader.addEventListener ("preloadCompleted", preloadCompletedF);

  in the Preloader, loading complete:

  this.dispatchEvent (new Event ("preloadCompleted"));

• Static NAT with asa 5520

  Hi all

  I have the following situation

  The following rules of the static nat

  static (inside, outside) tcp 200.200.200.200 80 10.0.0.200 80 netmask 255.255.255.255

  static (inside, outside) 200.200.200.200 tcp 8080 10.0.0.200 80 netmask 255.255.255.255

  I would redirect all packets destined for port 8080 and 80 IP address 200.200.200.200,

  to the private IP address on port 80 10.0.0.200.

  I tried to do that the ASA said there is already a rule, there is a way it be done?

  Kind regards.

  I don't think you can use port forwarding using the same local destination IP on port 80 in this way, fw will give you duplicate static entries.

  You can however get around and give 10.0.0.200 NIC a secondary IP address i.e. 10.0.0.201 and make electricity as follows.

  static (inside, outside) tcp 200.200.200.200 www 8080 10.0.0.201 netmask 255.255.255.255

  static (inside, outside) tcp 200.200.200.200 80 10.0.0.200 80 netmask 255.255.255.255

  See examples of port forwarding

  http://www.Cisco.com/en/us/products/HW/vpndevc/ps2030/products_tech_note09186a00804708b4.shtml

  concerning

• Static nat problem on ASA (v8.2)?

  Tring to add a new rules static nat, but it seems that I have a not able to do

  Public IP 10.10.10.10

  20.20.20.20 inside the LAN IP address

  try adding:

  FW (config) # static (inside, outside) tcp 10.10.10.10 https 20.20.20.20 https netmask 255.255.255.255

  ERROR: mapped address conflict with existing static

  inside: 20.20.20.20 outside: 10.10.10.10 netmask 255.255.255.255

  The rule with the same public IP already existing, but pointing to the different internal LAN IP address:

  static (inside, outside) 10.10.10.10 20.20.20.21 netmask 255.255.255.255

  Please advice how to solve this problem.

  Thank you!

  Hi Vuèko,

  Please change your existing static nat to a particular port instead of letting it as ip to ip nat.

  "static (inside, outside) 10.10.10.10 20.20.20.21 netmask 255.255.255.255".

  And then you can add second static nat to a different IP address (i.e. within the intellectual property) and it will take it and it should work.

  Thank you

  Rizwan Muhammed.

• Apart from the demilitarized zone or static NAT?

  Hello!

  I'm trying to implement the static translation from outside my network in DMZ. I tried with nat, global and static use but failed with both. The problem is that packets are go to the servers in the DMZ but nothing is returned to the sender. Also, when I try to access a Web server in DMZ I get SYN timeout.

  The traffic of my LAN (inside) local DMZ works as it should however.

  -Important conf--->

  access-list ON scope allowed any ip a

  Global interface (dmz) 12

  NAT (outside) - 12 OUT out access list

  Access-group OUT in the interface outside

  no nat control

  -more than information--->

  Interior - the security of IP 10.0.13.1 level 100

  DMZ - security level 50, IP 172.16.13.1

  outer - level 0, the security of IP 192.168.13.2

  Bastionhost = Web server

  -See the nat--->

  Policy NAT outside interface:

  match any ip outside any demilitarized zone

  dynamic translation to the pool of 12 (172.16.13.1 [Interface PAT])

  translate_hits = 2, untranslate_hits = 0

  When I used static instead of nat, overall I had so many untranslate_hits I sent to servers in DMZ.

  -Debug--->

  Built dynamic TCP translation of outside:192.168.13.5/1316 to dmz (OUT): 172.16.13.1 / 1028

  Built of 469 for incoming TCP connections to dmz:bastionhost (172.16.13.1/1028) outside:192.168.13.5/1316 / (bastionhost/80) 80

  Disassembly of the TCP dynamic translation of outside:192.168.13.5/1317 to dmz (OUT): 172.16.13.1 / 1029 0 duration: 00:39

  Disassembly TCP 473 for outside:192.168.13.5/1318 to dmz:bastionhost connection / 80 0 duration: 00:30 bytes 0 SYN Timeout

  Thank you.

  Your following config is fine, your bastionhost here with a public IP address of mapping that will allow the access server to the internet as well.

  allowed any icmp extended WEB access list a--> add this option to test accessibility outside bastionhost / internet and remove it later.

  IP any host 192.168.14.5-> or add 'eq www' to specify the port allow Access - list extended WEB.

  static (dmz, outside) tcp 192.168.14.5 www bastionhost www netmask 255.255.255.255

  group-access WEB interface outside

  You can omit the next part that meant allowing internet access only, bastionhost not allowing users to access.

  Global 1 192.168.14.5 (outside)

  NAT (dmz) 1 bastionhost 255.255.255.255

  BTW, what is the State of the road looks like?

• Cisco IOS - how config static nat to NAT on the VPN

  Hello world

  I need help.

  I configured a VPN site-to site between two routers IOS. One of the routers already had a static NAT (172.16.100.1 inside to the public IP address), but this static NAT prevents remote VPN hosts access to the 172.16.100.1 home as it tries to the response to public IP NAT router configured.

  Does anyone know how to use static NAT for the inside to the outside, but don't not NAT inside to outside VPN traffic?

  I know how to make using a roadmap for "overload" dynamic NAT, but I can't? t see how you can use a roadmap on the static NAT statement.

  You can provide any help would be appreciated.

  Chris

  Hi Chris

  Take a look at the document atatched with gives a few examples of the very thing you are trying to do.

  http://www.Cisco.com/en/us/products/SW/iosswrel/ps1839/products_feature_guide09186a0080087bac.html

  HTH

  Jon

• Cannot ping via the VPN client host when static NAT translations are used

  Hello, I have a SRI 3825 configured for Cisco VPN client access.

  There are also several hosts on the internal network of the static NAT translations have a services facing outwards.

  Everything works as expected with the exception that I cannot ping hosts on the internal network once connected via VPN client that is internal IP addresses have the static NAT translations in external public addresses, I ping any host that does not have static NAT translation.

  For example, in the example below, I cannot ping 192.168.1.1 and 192.168.1.2, but I can ping to the internal interface of the router, and any other host on the LAN, I can ping all hosts in the router itself.

  Any help would be appreciated.

  Concerning

  !

  session of crypto consignment

  !

  crypto ISAKMP policy 10

  BA 3des

  preshared authentication

  Group 2

  !

  ISAKMP crypto client configuration group vpnclient

  key S3Cu4Ke!

  DNS 192.168.1.1 192.168.1.2

  domain domain.com

  pool dhcppool

  ACL 198

  Save-password

  PFS

  netmask 255.255.255.0

  !

  !

  Crypto ipsec transform-set-SECURE 3DES esp-3des esp-sha-hmac

  !

  Crypto-map dynamic dynmap 10

  86400 seconds, life of security association set

  game of transformation-3DES-SECURE

  market arriere-route

  !

  card crypto client cryptomap of authentication list drauthen

  card crypto isakmp authorization list drauthor cryptomap

  client configuration address card crypto cryptomap answer

  map cryptomap 65535-isakmp ipsec crypto dynamic dynmap

  !

  interface GigabitEthernet0/0

  NAT outside IP

  IP 1.2.3.4 255.255.255.240

  cryptomap card crypto

  !

  interface GigabitEthernet0/1

  IP 192.168.1.254 255.255.255.0

  IP nat inside

  !

  IP local pool dhcppool 192.168.2.50 192.168.2.100

  !

  Note access-list 198 * Split Tunnel encrypted traffic *.
  access-list 198 allow ip 192.168.1.0 0.0.0.255 192.168.2.0 0.0.0.255

  !
  Note access-list 199 * NAT0 ACL *.
  access-list 199 deny ip 192.168.0.0 0.0.255.255 192.168.0.0 0.0.255.255
  access-list 199 permit ip 192.168.1.0 0.0.0.255 any

  !

  Sheep allowed 10 route map
  corresponds to the IP 199

  !
  IP nat inside source map route sheep interface GigabitEthernet0/0 overload

  !

  IP nat inside source static 192.168.1.1 1.2.3.5
  IP nat inside source static 192.168.1.2 1.2.3.6

  The problem seems to be that static NAT take your nat exemption.

  The solution would be:

  IP nat inside source static 192.168.1.1 1.2.3.5 sheep map route
  IP nat inside source static 192.168.1.2 1.2.3.6 sheep map route

  HTH

  Herbert

• Two static NAT/PAT instructions

  Hello

  I have a PIX 515 running PIX OS 7.0, and I have a server behind the PIX with a static translation entry.

  I was invited as a remote site must connect to the SQL service running on this computer, but the site connects to a non Standard-SQL TCP port, so I thought that I can use a static PAT (port forwarding), but I wonder... can I keep the existing static NAT and add the static PAT? !!! Furthermore, the rest of the remote sites will connect to the same SQL service on the standard port and there are more services running on the server that will be accessible from the outside.

  The server is online, so I won't add the static PAT before you make sure that it will run smoothly...

  Thnx, Salem.

  Hi Salem,

  First, I entered this static NAT command:

  static (inside, outside) 1.2.3.4 10.0.0.1 netmask 255.255.255.255

  This static PAT order tracking:

  static (inside, outside) tcp 1.2.3.4 http 10.0.0.1 netmask 255.255.255.255 http

  and got this error message:

  ERROR: mapped address conflict with existing static

  This suggests that it is not possible.

  Kind regards

  Tom