Clarification of authentication PIX NAT and BGP

Similar Questions

• PIX NAT and STATIC commands

  Hello

  My script is

  Inside (LAN) (172.16.x.x) - DMZ (172.29.1.x)

  I would like to provide access to internal network to the DMZ. In addition to the ACL configuration, I can do this by using the following two methods. What are the advantage\dis advantage of each method

  static (inside, dmz) 172.16.0.0 172.16.0.0 255.255.0.0 subnet mask

  OR

  access-list ip 172.16.0.0 sheep allow 255.255.0.0 172.29.1.0 255.255.255.0

  NAT (inside) 0 access-list sheep

  What is the difference between these two?

  Hello

  Function of static and nat (inside) ACL 0 is the same, that is, traffic from inside the demilitarized zone and the opposite would be allowed. The real difference is, when configuring nat (inside) ACL 0, you are really turn off the nat for this traffic engine altogther. Using the static, you disable the nat on the pix engine, turn PIX translations sort of mistakes, as real sense his translation TI. Note: nat (inside) 0 0 0 is different from nat (inside) ACL 0. With ACL option, you can connect the two sector, with only nat (inside) 0 0 its only from the inside to the dmz, dmz inside No. In a moderated network environment, you won't see much difference in terms of performance. It's just depends on condition, you prefer one over the other.

  I hope that its clear! Thank you

  Renault

• PIX, PDM and AAA issues

  I have a PIX 520 in the laboratory running 6.3.3 and PDM 3.0. I tested AAA authentication and authorization to our ACS server and run into problems.

  I have two groups put in place on our ACS server. A group can be accessed freely, the other group is set to the top with a Shell command authorization set that limit orders so that they can watch the running-config and a few other things. Users of both groups can connect to the PDM or SSH/telnet/series in the unit and are authenticated and authorized correctly.

  The configuration below works fine, until I pull the ACS server off the network. Because it is not any backup authentication or authorization to order method I am dead in the water. When this happens, I can always connect via the serial console, by using the 'pix' username and password enable, I just cannot run the command 'Enable' mode privlieged or any other control besides. (I get an error "Permission has no orders").

  Here's a current configuration:

  GANYMEDE + Protocol Ganymede + AAA-server

  AAA-server GANYMEDE + (inside) host 1.2.3.4 123456 timeout 5

  Console telnet authentication GANYMEDE AAA +.

  the AAA console ssh GANYMEDE authentication +.

  AAA authentication GANYMEDE serial console +.

  AAA authentication enable console GANYMEDE +.

  Console AAA authentication http GANYMEDE +.

  order of AAA for authorization GANYMEDE +.

  Is it possible to set up a backup method for approval of authentication and control? If not, is there any other way the problem I'm running into?

  Let me know if you need more info. Thank you!

  Hello

  Sorry, I missed this earlier. There is a failure on the PIX for this and we have an open enhancement request to add several methods of authorization to the PIX - CSCea04538. At this point, your best bet is to bug of your account team to get this feature added to the code of PIX to come. Sorry for the inconveinence.

  Scott

• NAT and Site to site VPN

  Hi all

  We currently have a PIX in our local network. There is a Site to site VPN tunnel between this PIX and another network abroad.

  We have several networks in our local network.

  The VPN tunnel is on a single network: 192.50.175.0 / 24.

  and the network of the other site is:

  192.100.24.0 21

  Part of the configuration:

  inside_nat0_outbound ip 192.50.175.0 access list allow 255.255.255.0 192.100.24.0 255.255.248.0

  NAT (inside) 0-list of access inside_nat0_outbound

  As I said before, we have several networks.

  In particular, we have 192.50.160.0/24 too.

  And we would like that this network can use the VPN tunnel also.

  But the other site does not want to carry our another network in their LAN.

  They suggest we 192.50.160.0 NAT / 24 to an IP address on the 192.50.175.0 / 24, users in a network 192.50.160.0 / 24 can also use the VPN tunnel.

  Do you know if it is possible to do it with my PIX? And how?

  It's a PIX-515-DMZ, v6.3 (5).

  Any help would be appreciated!

  Thank you

  Good point. You can be good then.

• Site ads continue to use the proxy settings and I get the message "Authentication required" time and time again. I have stop advertisements to use my proxy settings?

  I have put my school proxy settings and use them very often. On some Web sites, ads continue to use these proxy settings (probably to show me ads based on my preferences or I don't know), and I get the message "Authentication required" time and time again before the end of the loading page. It's annoying because if I have several tabs open and am currently on another page while loading the website with the ads, I'm brought back to this page to authenticate. Can I get asked 3 times to authenticate while this page loads, and it takes forever to load because of this. I don't want to disable my proxy settings because I use it very often. I tried to uncheck the "Accept cookies from Web sites" and nothing happens, it's always the same. I want these ads to stop going through my proxy settings. How do I do that?

  Hello

  You can try the add-on Adblock Plus . In addition to subscriptions, you can manually add URL patterns or click on an ad to add a filter.

  Support

• How can I reset my "authentication required" username and password? The fields are always filled with my old information.

  How can I reset my "authentication required" username and password? The fields are always filled with my old information.

  Follow these steps to delete the recorded data (form) in a drop-down list:

  1. Click on the (empty) input field on the web page to open the drop-down list
  2. Select an entry in the drop-down list
  3. Press the DELETE key (on a Mac: shift + delete) to remove it.
  • Tools > Options > Security: passwords: "saved passwords" > "show passwords".
  • http://KB.mozillazine.org/Deleting_autocomplete_entries

  You may need to clear cookies from this site, so if you checked a box to remember you.

• dad bought me a computer PORTABLE from NUTRIGEST I HAVE BEEN out of the CITY FOR SOME TIME AND LATER BETWEEN the AUTHENTICITY CODE PRODUCT, AND IT's not SAYIING VALID, BUT I KNOW THAT CANT BE REAL CODE IS

  dad bought me a computer PORTABLE from NUTRIGEST I HAVE BEEN out of the CITY FOR SOME TIME AND LATER BETWEEN the AUTHENTICITY CODE PRODUCT, AND IT's not SAYIING VALID, BUT I KNOW THAT can NOT BE TRUE

  If it is a new machine call or go to circuit city and get them fixed.  If they sold you the laptop, indicating that it included Windows XP then the onus is on them that provide you a valid COA and the product key.

  John

• Order of procedure SonicWALL for routing, NAT and policies

  I'm confused on the prescription that the sonicwall verifies a package.  The way I heard the order, it will:

  (1) check against the access rules,

  (2) check against NAT Polies

  (3) check the routing.

  Installation program:

  Subnet point of VPN endpoint - Internet - SW NSA 2400 (VPN) - sub-network B (from C subnet)

  A subnet is 10.1.100.x/24

  Subnet B is consists of three IPs, 192.168.99.4,.50, and 109.

  Subnet C is contains the host IPs 192.168.13.4,.50, and 109.

  I VPN configured to allow traffic from 10.1.100.x to the hosts on the subnet B, what NAT and the host subnet C.  This method works more large, is not a problem.

  I need to reduce access to certain ports.  Once I set access restrictions in the port, the firewall blocks ALL.

  When I look at a screenshot of packets when traffic is blocked, I see the following:

  Source 10.1.100.5--> 192.168.99.4 accepted

  Source 10.1.100.5--> 192.168.13.4 refused.

  Block of code indicates that it is because of politics.  However the policy review should have been checked and checked already.  If I change the VPN policy to represent both sides of the NAT (ie. 192.168.99.4 and 192.168.13.4) then passes the traffic.

  If anyone can explain what is happening?

  I tried to look through some KB SonicWall has publicly available articles. But I did not see anything that doesn't seem to help. In this case, I think you might want to give SonicWall support a call.

  https://support.software.Dell.com/manage-service-request

  They can help to look over your configurations and see if we have to make changes. They should also be able to answer your technical questions about how the packets are received or managed.

• IPSec Tunnel between Cisco 2801 and Netscren 50 with NAT and static

  Hello

  My problem isn't really the IPSec connection between two devices (it is already done...) But my problem is that I have a mail server on the site of Cisco, who have a static NAT from inside to outside. Due to the static NAT, I do not see the server in the VPN tunnel. I found a document that almost describes the problem:

  "Configuration of a router IPSEC Tunnel private-to-private network with NAT and static" (Document ID 14144)

  NAT takes place before the encryption verification!

  In this document, the solution is 'routing policy' using the loopback interface. But, how can I handle this with the Netscreen firewall. Someone has an idea?

  Thanks for any help

  Best regards

  Heiko

  Hello

  Try to change your static NAT with static NAT based policy.

  That is to say the static NAT should not be applicable for VPN traffic

  permissible static route map 1

  corresponds to the IP 104

  access-list 104 refuse host ip 10.1.110.10 10.1.0.0 255.255.0.0

  access-list 104 allow the host ip 10.1.110.10 all

  IP nat inside source static 10.1.110.10 81.222.33.90 map of static route

  HTH

  Kind regards

  GE.

• Mutual redistribution between EIGRP and BGP and match statements

  Hello Experts

  I'm working on a problem of mutual redistribution between EIGRP and BGP

  The idea is a beacon (210) on traffic from our LAN on R2 - 2 so that it can be put in correspondence and denied the R3-7. The goal is to prevent routing loops.

  The routes are redistributed in R1 - 1, but I am not able to see if the roads are being marked.

  Can someone let me know how to check the roads are being filtered with course maps?

  TBH, I don't think the market at all.

  I have attached the configs and view orders.

  I read somewhere the problem was with match type internal route command, but I don't know if this is the problem

  Any help will be greatly appreciated.

  Topology and configs are attached.

  See you soon

  Hello

  You have 2 points:

  1. Deny the redistribution of EIGRP routes tag in BGP: you already have with your route map
  2. You must filter the roads scholar eigrp on R5 to them are not propagated in R2. I'll use a roadmap for the tag and the EIGRP neighbor. The configuration looks like:

  IP access-list standard FROM_R4
  license to host 192.168.1.2
  !
  !
  EIGRP-TAG route map deny 10
  ! subnets from R4 with tag 210
  match ip route-source FROM_SLDC
  game tag 210
  EIGRP-TAG allowed 20 route map
  !
  Router eigrp 65100
  ! Filtering of marked routes
  route map EIGRP-distribute-list tag in
  !

  Currently, you are missing a piece to import these networks R5.

  Thank you

  PS: Please do not forget to rate and score as correct answer if this answered your question

• Static nat and NAT ACL 0

  All,

  I have nat 0 ACL indicating that an ip address should not be natted, while a static nat statement saying we need natted. I just want to know that we will have precedence.

  Thank you

  It is of the order of operations PIX nat / ASA.

  the NAT 0 acl_name (nameif) has priority.

  1 nat 0-list of access (free from nat)

  2. match the existing xlates

  3. match the static controls

  a. static NAT with no access list

  b. static PAT with no access list

  4. match orders nat

  a. nat [id] access-list (first match)

  b. nat [id] [address] [mask] (best match)

  i. If the ID is 0, create an xlate identity

  II. use global pool for dynamic NAT

  III. use global dynamic pool for PAT

• Issue of ASA NAT and routing

  Hello

  I have a question about NAT and routing on the SAA. I'm relatively new to ASA and don't know if it works or not. I have a pool of public IP (209.x.x.x/28) that routes my ISP to the external interface of my ASA. IP was assigned address for the outside of the ASA is an address of 206.x.x.2/24 with a default GW of 206.x.x.1. I intend using NAT to allow my web/mail servers on the DMZ (192.168.x.x) use 209.x.x.x addresses. However, I do know how to make it work since I'm not arping on any interface for 209.x.x.x addresses as they will be sent to the 206.x.x.2 address by the ISP. Can I just set up a translation NAT (on the external interface?) of the 209.x.x.x on 192.168.x.x address and the ASA will figure it out?

  Thanks for the help.

  Todd

  The ASa will figure it out, he will answer ARP queries for all that he has set up in a "static" command As long as th PSIA routes 209.x.x.x directly to the ASA addresses then it should all work fine.

  You just need to add lines like the following:

  static (dmz, external) 209.x.x.x netmask 255.255.255.255 192.168.x.x

  for each of your internal servers in the DMZ. Then an access-list to allow only HTTP/SMTP/etc through these addresses 209.x.x.x.

  list of allowed inbound tcp access any host 209.x.x.x eq smtp

  list of allowed inbound tcp access any host 209.y.y.y eq http

  Access-group interface incoming outside

• Missing documents for Pix V7 and ASDM V5

  Just upgraded one of my Pix to V7.

  Now I'm looking for the "Cisco Pix Firewall and VPN Configuration Guide" and "the Cisco PIX Firewall command reference" for version 7, but I couldn't find them on the cisco site.

  Any idea where I could find them?

  Maybe I need to use the ASA guides instead?

  And I was unable to find documentation on how to install ASDM... When I upgraded to 6.3 I've had trouble finding the PDM 3.0 installation guide...

  All the tracks would contribute to

  www.Cisco.com

  right side

  Old Site Technology-Documentation

  Network security

  Select "Cisco Secure PIX Firewall.

  http://www.Cisco.com/univercd/CC/TD/doc/product/iaabu/PIX/index.htm

• NAT and VMware View

  I am

  try again using VMware View, where a person uses a VPN to

  connect to my view of the Park, but my connection to the server is running NAT, and

  the client tries to connect in my Park he cannot get the virtual

  machine. Are there restrictions? Any tips?

  If you have found this information useful, please consider awarding points to 'Correct' or 'Useful'*.

  Exactly THAT PCOIP do not work on the Security server.  If your using VPN and connect to a broker internal conection it should work good as new NAT could shake things.    Should be a simple test however.

  If you have found this device or any other useful post please consider the use of buttons useful/correct to award points

  Twitter: http://twitter.com/mittim12

• 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.