Destination NAT/PAT pix

Similar Questions

• Simultaneous source and destination NAT on PIX

  Hello;

  It's my first PIX configuration, and I am facing a problem; I need to do nat source and destination at the same time, and I don't see how.

  The problem is I need an internal host (172.1.1.1), connection to say 172.17.20.30:5000, have IP source translated into 172.17.20.51, and translated into destination IP/port to 10.15.2.5:1414.

  At the moment there is a Linux machine with iptables does work, and I need to get to work.

  Thanks in advance;

  Francisco.

  Translate address of host b and outside port:

  static (dmz1, outside) interface 80 172.16.1.1 90

  Definition of HostA to dmz1 Pix interface. Make sure that you use a group nat number not in use:

  NAT (outside) 7 192.168.1.1 255.255.255.255 outside

  Global (dmz1) interface 7

• Newbie user-NAT, PAT, the two PIX?

  Hello

  I'm test I set up my PIX 515e barriers make the lives of my users living hell, and I don't know I do NAT PAT or both.

  I have an internet connection through a cable modem that is currently connected to a Linksys router. I'll say goodbye to Linksys and use only the PIX.

  So my question is do I need to NAT or PAT from the outside to the inside and don't I need of NAT or PAT on the inside? To make that more complicated things that do, I do with my DMZ?

  A side not I currently use the linksys to the port before MS Office an interior workstation remotely, can I still do?

  Thanks for any help, somebody has.

  Marc

  Hi Marc,

  The document you need is:

  http://www.Cisco.com/warp/public/707/28.html

  Hope this helps and let me know if you need further information/assistance and good luck with CCNA.

  Thank you - Jay.

• interesting question of the vpn site to site NAT/PAT traffic config

  I have an ASA 8.4.2 running code and am just checking the Site to site configs before migration of tunnel. more precisely if the NAT/PAT and ACL is correct. Phase 1 is already defined and work, as well as cryptographic maps and tunnel groups.

  When you set the traffic interesting in the ACL are you using NAT or the real IP? The order of the ACL is correct?

  First of all:

  The vedor network is a 192.168.1.10 and must be coordinated to 10.1.0.2

  name 5.6.7.8 VendorName object-group network VendorName-R network-object host 192.168.1.10 object-group network VendorName-NAT-R network-object host 10.1.0.2 object-group network VendorName-L network-object host 10.1.1.3 access-list VendorName-crypto extended permit ip object-group VendorName-L object-group VendorName-NAT-R nat (inside,outside) 1 source static VendorName-L VendorName-NAT-R destination static VendorName-R VendorName-R

  Second:

  Sellers network is 192.168.1.0 to 192.168.2.0, these must be PATed 10.1.0.2 and 10.1.0.3

  192.168.1.20 and 168.1.21 must be staticly using a NAT 10.1.0.4 and 10.1.0.5

  Name the SupplierName 5.6.7.8

  object-group network VendorName-R-1

  network-object subnet 192.168.1.0 255.255.255.0

  object-group network VendorName-R-2

  network-object subnet 192.168.2.0 255.255.255.0

  object-group network VendorName-R-3

  network-object host 192.168.1.20

  object-group network VendorName-R-4

  network-object host 192.168.1.21

  object-group network VendorName-NAT-R-1

  network-object host 10.1.0.2

  object-group network VendorName-NAT-R-2

  network-object host 10.1.0.3

  object-group network VendorName-NAT-R-3

  network-object host 10.1.0.4

  object-group network VendorName-NAT-R-4

  network-object host 10.1.0.5

  object-group network VendorName-R

  network-object VendorName-NAT-R-1

  network-object VendorName-NAT-R-2

  network-object VendorName-NAT-R-3

  network-object VendorName-NAT-R-4

  object-group network VendorName-L

  network-object host 10.1.1.3

  the object-Network 10.1.1.6 host

  VendorName-crypto allowed extended ip access-list object-VendorName-L Group VendorName-R

  NAT (inside, outside) 1 dynamic source VendorName-l VendorName-NAT-R-1 static destination VendorName-R-1 VendorName-R-1

  NAT (inside, outside) 1 dynamic source VendorName-l VendorName-NAT-R-2 static destination VendorName-R-2 VendorName-R-2

  NAT (inside, outside) 1 static source VendorName-l VendorName-NAT-R-3 of destination VendorName-R-3 static VendorName-R-3

  NAT (inside, outside) 1 static source VendorName-l VendorName-NAT-R-4 static destination VendorName-R-4 VendorName-R-4

  Your valuable traffic acl MUST be the IP NAT address.

• PIX 501 NAT / PAT problem

  Have a 501 for a client configuration. All works well for a few minutes and they the PC can't get out the firewall. Looks like the NAT works very well but the PAT do not hit.

  This part of the config, I received an example of cisco.

  Can someone help me?

  Thank you

  Fred

  With less than 25 PCs behind the PIX you won't have to worry about memory problems. You will have to look for good of licensing issues. The default 501 supoprts 10 users license and can be upgraded to support 50 users - still no need to worry about memory.

  Regarding the counters on the PIX, I usually recommend to leave all timers with settings by default unless you are having problems and TAC allows you to change them.

  -Mark

• Cisco ASA 8.4.1 address Destination NAT?

  I have a situation where I have a deployed asa5505 8.4.1 running.

  The customer has a mail server existing which is located on their local network and has Port configured NAT for normal mail ports, etc. 25,110,993,587.

  It works very well for incoming mail and any jerky mail user off the external server or by visiting the webmail from outside the network.

  However when the users within the LAN to connect through the ASA test back entering the IP address on the external Interface of the ASA, they are unable to do so.

  I came up with the solution is split DNS.   well does he rely on users not changing their dns servers.

  I was wondering if it is possible to make a sort of NAT that rewritten traffic destined to the above ports on the external IP address to the internal LAN Ip instead.

  This is probably a stupid question, but I couldn't find an answer may I use the terms wrong to get one.

  In any case, I was hoping someone here could point me in the right direction.

  Thank you

  You can only configure DNS rewrite rewrite if you have static NAT 1 to 1, with static PAT as advised, rewriting DNS is not supported because with PAT static, it is potentially different internal IP mapping, so the DNS rewrite is not exactly at the right address.

• DNS traffic blocked after PAT - PIX 515

  I have PIX 515 with 3 named NIC (internal, external, dmz)

  I have 2 servers (Exchange and Windows 2000 with SMTP) in the demilitarized zone.

  I currently have a static command pointing to doamin for exchange Server IP address in the DMZ.

  I wanted to PAT on the IP address of the e-mail domain so that the configuration will look like as follows.

  The IP field will be used for the global IP

  all pop3 for global ip traffic will go to Exchange

  all www for the global IP traffic will go to Exchange

  all smtp for global ip traffic will go to the Windows 2000-based SMTP relay (SMTP relay is configured to send the e-mail received in exchange Server)

  I hosted DNS udp and tcp traffic to the servers.

  before pat, the server can use DNS to resolve IP domain e-mail and send mail to the Internet.

  As soon as I PAT the Internet e-mail delivery stops.

  When I did an NSLOOKUP command returns an error indicating that the DNS server cannot be resloved.

  The servere DNS used by these 2 servers are servers DNS of ISP.

  Is there any concern when you PAT.

  Thank you

  Hello

  I found the problem:

  for now, your dmz servers can go to the internet with pop3, smtp, and www. Only for these protocols is a (static) translation to provide in the config file.

  You will need to will provide you a translation for other protocols (for example, dns) also. This can be accomplished with one of the following two things:

  create a nat - pair overall for the DMZ for outdoor

  NAT (dmz) 1 0.0.0.0 0.0.0.0

  Global (outside) 1 200.100.100.168 (already exists)

  create a static translation for each of the other protocols (next to pop3, smtp, www), you want to pass from the dmz to the internet (you already did that for www, pop3 and smtp).

  Kind regards

  Tom

• 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

• Static NAT on PIX 501 help

  I PIXA (192.168.27.0) PIXB (192.168.1.0) with a VPN connection.  I want to PIXB network 10.10.1.0 NAT when it connects to PIXA, so that when I do a ' sh ipsec his ' on PIXA, it shows the remote ident as 10.10.1.0 instead of 192.168.1.0.  I enclose my config PIXB.  Does anyone mind overlooking it and tell me what I'm doing wrong?  Thanks for all the ideas.

  1. remove the "nat (inside) 0 access-list NO - NAT"

  2. change acl 90 "access-list 90 allow ip 10.20.1.0 255.255.255.0 192.168.27.0 255.255.255.0.

  3. edit the ACL on the other end as well.

• ICMP and NAT/PAT

  How does PAT/NAT behave on ICMP packets if there is no ports such as udp/tcp?

  Best regards

  Francesco

  Take a look at these documents

  http://Tools.ietf.org/WG/behave/draft-ietf-behave-NAT-ICMP/draft-ietf-behave-NAT-ICMP-01-from-00.wdiff.html

  http://www.Cisco.com/en/us/Tech/tk648/tk361/technologies_tech_note09186a0080093f96.shtml

  Both will help you understand

  HTH

  Hoogen

  Do rates if it help :)

• Should I static if I'm not using nat on pix 6.2?

  I have pix 6.2 and not nat address translation, I use everything I have nat from the East:

  NAT (inside) - 0 200 access list

  NAT (inside) 0 0.0.0.0 0.0.0.0 0 0

  NAT (dmz:2) 0 0.0.0.0 0.0.0.0 0 0

  and then I have the configured static next:

  static (inside, outside) LotusSrv LotusSrv netmask 255.255.255.255 0 0

  static (inside, outside) 81-mail mail-81 netmask 255.255.255.255 0 0

  static (inside, outside) Bookstore Bookstore netmask 255.255.255.255 0 0

  static (inside, dmz:2) 204.142.81.0 204.142.81.0 netmask 255.255.255.0 0 0

  static (dmz:2, outside) Venus Venus netmask 255.255.255.255 0 0

  and much more... but not for guests...

  Lie, I have no overall control.

  I just want to know what are these static commands, I can delete them and how to decide who hosts that I have to configure static?

  Statix expose ip addresses of interfaces of high security to low security ints. Once created, you can then use pipes or access lists to allow access of ints low to high s ints. Then Yes, you need to keep all those who, if they provide services to the outside world.

  Matt

• Problem of NAT with PIX 515E

  I configured a PIX 515E, OS 7.0 (1) f? PAT r dynamic of the inside of the network to the external ip address of the PIX. I also configured for icmp access lists from inside to outside and inside. All traffic (www, dns, ftp, etc.) works very well except ping. Whenever I do a ping from host inside to any address outside, I get the following error messages:

  6. August 24, 2006 11:10:52 | 609002: duration of disassembly-outside local host: 193.222.224.104 0:00:10

  6. August 24, 2006 11:10:52 | 302021: connection of disassembly ICMP for faddr gaddr laddr 8994/FDFR001 212.203.90.59/9 193.222.224.104/0

  6. August 24, 2006 11:10:50 | 302021: connection of disassembly ICMP for faddr 193.222.224.104/0 gaddr 212.203.90.59/8 laddr FDFR001/8993

  4. August 24, 2006 11:10:50 | 106023: Deny icmp src, dst outside: 193.222.224.104 inside: 212.203.90.59 (type 0, code 0) by access-group "outside_access_in".

  6. August 24, 2006 11:10:50 | 302020: ICMP connection built for faddr gaddr laddr 8994/FDFR001 212.203.90.59/9 193.222.224.104/0

  6. August 24, 2006 11:10:48 | 302021: connection of disassembly ICMP for faddr 193.222.224.104/0 gaddr 212.203.90.59/7 laddr FDFR001/8992

  4. August 24, 2006 11:10:48 | 106023: Deny icmp src, dst outside: 193.222.224.104 inside: 212.203.90.59 (type 0, code 0) by access-group "outside_access_in".

  6. August 24, 2006 11:10:48 | 302020: ICMP connection built for faddr 193.222.224.104/0 gaddr 212.203.90.59/8 laddr FDFR001/8993

  6. August 24, 2006 11:10:46 | 302021: connection of disassembly ICMP for faddr 193.222.224.104/0 gaddr 212.203.90.59/6 laddr FDFR001/8991

  4. August 24, 2006 11:10:46 | 106023: Deny icmp src, dst outside: 193.222.224.104 inside: 212.203.90.59 (type 0, code 0) by access-group "outside_access_in".

  6. August 24, 2006 11:10:46 | 302020: ICMP connection built for faddr 193.222.224.104/0 gaddr 212.203.90.59/7 laddr FDFR001/8992

  6. August 24, 2006 11:10:44 | 302021: connection of disassembly ICMP for faddr 193.222.224.104/0 gaddr 212.203.90.59/5 laddr FDFR001/8990

  4. August 24, 2006 11:10:44 | 106023: Deny icmp src, dst outside: 193.222.224.104 inside: 212.203.90.59 (type 0, code 0) by access-group "outside_access_in".

  6. August 24, 2006 11:10:44 | 302020: ICMP connection built for faddr 193.222.224.104/0 gaddr 212.203.90.59/6 laddr FDFR001/8991

  4. August 24, 2006 11:10:42 | 106023: Deny icmp src, dst outside: 193.222.224.104 inside: 212.203.90.59 (type 0, code 0) by access-group "outside_access_in".

  6. August 24, 2006 11:10:42 | 302020: ICMP connection built for faddr 193.222.224.104/0 gaddr 212.203.90.59/5 laddr FDFR001/8990

  6. August 24, 2006 11:10:42 | 609001: built outside local host: 193.222.224.104

  What could be the problem?

  Thank you, Meg

  It's only to predict the responses of echo at all on the external interface. If you do the following ACL on the outside, it should work...

  outside_access_in list extended access permit icmp any any echo response

• NAT/PAT - best practices for LRT214?

  Hello

  I've always used routers/firewalls (like a Fortigate 50 a or an ASUS SL1200) with the possibility to transmit and translate different addresses public IP/Ports to different IP/port addresses in my local network, for example

  external IP xx.xx.xx. 42 port 25659 to xx.xx.xx internal. 100 port 3389

  While at the same time

  external IP xx.xx.xx. 43 port 80 has been translated and mapped to internal xx.xx.xx. 105 port 80

  and so on...

  Now with my LRT214 (I received yesterday, the firmware is updated) this seems to be more difficult (impossible?), since I can only translate to one specific IP address Ports, or am I missing something?

  Any help would be appreciated,

  Thank you very much!

  Walther

  Hi, wurli. About One to One NAT on the router LRT214, we can simply map a private IP address or a range to a public IP address and a range of length equal. However, we do not have the ability to specify ports.

  Jay-15354

  Linksys technical support

• PAT/NAT and VPN through a PIX

  "PPTP through the PIX with Port address translation (PAT) does not work because there is no concept of ports in GRE"-this is an excerpt from a config PIX version 6.2 and below.

  1. how this problem has been fixed in 6.3? GRE is encapsulated in udp or tcp to use ports to follow the connection?

  2. is it "fixup protocol esp-ike" use the same technology - the source port created by the IKE protocol? -ISAKMP cannot be enabled when you use this command

  3. What is "isakmp nat-traversal? How is this different from fixup protocol esp-ike"

  Thank you

  RJ

  1. when the PIX sees outgoing PPTP (TCP 1723 port) packets it now opens holes for them to return, as well as opening a hole for the GRE packets, it has never done this before. The PPTP TCP packets can be PAT would be fine because they are TCP packets. GRE packets, I believe, are followed by the id field only tunnel in the package.

  2. we use the source port of the ISAKMP packet for ESP packets as well. The current limitation is that if you have this option, you cannot use the PIX to close the IPSec sessions, so you can not turn on ISAKMP any interface. You can also have only a single IPSec client internal to use this feature.

  3 NAT - T is a new standard for IPSec to work through a NAT device peers, because they detect changes of address during the negotiation of tunnel and automatically encapsulate packets in UDP 4500. This market allows the PIX and the other device (if it supports it) to automatically detect a NAT/PAT device between them. This differs from the "esp - ike correction '' that the PIX ends not in fact the IPSec tunnel with esp - ike, but it is the endpoint in nat - t.

• PAT NAT problems,

  Hello

  My client has a PIX 520. Here is the config.

  Global (outside) 20 214.39.43.41 - 214.39.43.101

  Global (Dmz) 10 11.254.254.31

  Global (clients) 20 11.151.4.51 - 11.151.4.101

  NAT (inside) 20 161.2.2.177 255.255.255.255 0 0

  NAT (inside) 20 161.2.2.180 255.255.255.255 0 0

  NAT (inside) 10 0.0.0.0 0.0.0.0 0 0

  NAT (Dmz) 20 0.0.0.0 0.0.0.0 0 0

  The 161.2.2.177 device (server) is inside the interface. The config above, that this device will be NAT/PAT would have for outgoing interfaces i.e.

  (Inside) 161.2.2.177, NAT'd (214.39.43.41 - outdoor 214.39.43.101)

  (Inside) 161.2.2.177, NAT'd 11.151.4.51 - 11.151.4.101 (customers)

  (Inside) 161.2.2.177, PAT'd (DMZ) 11.254.254.31

  The Xlate table, 161.2.2.177 is THAT NAT would have for outdoor & customer interfaces, but PAT translation does not work!

  PAT test I used a PC inside the DMZ ping and the PC are PAT had to 11.254.254.31.

  Statically mapping 161.2.2.177 to an address on the DMZ also works. But PAT for this device does not work!

  Until PAT previously for this unit on the demilitarized zone have worked, no configuration change has attempted all the PIX.

  Has anyone encountered this problem before?

  Thanks for your help

  The 161.2.2.177 address is excluded because you have this:

  > nat (inside) 20 161.2.2.177 255.255.255.255 0 0

  Any package that inside the host will always use this nat statement since it is the most specific, there a nat 20 id, so you need a command of "global (dmz)" corresponding with the id - nat 20 also.