PIX 520 IP Addressing question.

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• statements of nat on my PIX 520

  I have the following two statements on the config of my PIX 520:

  NAT (inside) - 0 100 access list

  NAT (inside) 1 0.0.0.0 0.0.0.0 0 0

  I understand that my predecessor built our Access-list 100 as tunnels for our VPN to our customers. But I don't know what is the purpose of the 2nd NAT.

  Pls help...

  Education of a nat 0 specifies addresses that will not be translated.

  The nat statement 1 by 0 all indicates that any address will lead to a global address. (with the exception of nat 0)

  Access-list 100 should be your networking source and destination for the vpn.

• UR PIX 520 or R?

  I have a PIX-520 and I can't say what type of license is about it. Can someone tell me how to find out? Here's the worm HS:

  pixfirewall # SH VER

  Cisco Secure PIX Firewall Version 5.0 (3)

  Updated Tuesday January 23 00 21:59 by pixbuild

  BIOS of finesse V3.3

  pixfirewall up to 7 min 42 sec

  Material: SE440BX2, 128 MB RAM, Pentium II 349 MHz processor

  Flash AT29C040A @ 0 x 300

  BIOS Flash AM28F256 @ 0xfffd8000

  0: ethernet0: the address is 0090.27a7.2e5f, irq 11

  1: ethernet1: the address is 0090.27a7.2d88, irq 10

  Licensed connections: 65536

  Serial number: 18021002 (0x112fa8a)

  pixfirewall #.

  Hello

  I remember, Pix 520 came in 3 licenses of connection, 128, 1024 and 65536. 65536 is a unrestricted license option. Since your worms Sh shows connections that are allowed as 65536, your Inbox is unrestricted.

• Configuration of the PIX 520 with two links to Internet

  Hello.

  I have a pix 520 with four interfaces ethernet firewall, in fact I am with

  just two interfaces,

  Ethernet 0 outdoors

  Ethernet 1 inside

  ethernet2 closed intf2

  ethernet3 closed intf3

  Thus, in the interface to the outside, I have access to the internet, but now I

  access to the internet and I want to configure the two, I mean,.

  a single network inside and two internet access,

  is it posible?

  the perhaps configuration.

  Ethernet 0 (access 1) outdoors

  1 Ethernet (ip 10.1.1.1) inside

  ethernet2 outside2 (access to internet 2)

  ethernet3 inside2? (ip 10.1.1.2)?

  Thanks for the help,

  You can plug it in like that, but there is no way to route traffic by default. PIX does not support this type of connections that you can only configure a default route on the pix. This link should help describe what you can do: http://www.cisco.com/warp/public/110/pixfaq.shtml#Q18

  I hope this helps.

  Kurtis Durrett

• PIX 520 running 6.2 (1); SSH session limited exceeded; cannot reconnect

  Twice now, one of my PIX 520 s did not allow new ssh or telnet sessions and displays the following message on the syslog server:

  PIX-4-315005% SSH session limit exceeded %. Connection request of #. #. #. # on the _interfacename_ interface

  I think I understand the basics of what is going on, but I am confused about how to get it for free, and why it has suddenly become a problem.

  Both times I went to a physical console (via the nice blue cable) session and used the ssh session disconnect # command. There are 5 numbered 0-4 connections.

  Both times that do not release the firewall to serve ssh again.

  Help! Anyone have any ideas?

  It is a known issue (CSCdy05681 and other I think), must be laid down in the code of 6.2 (2).

• PIX 520 model CO or MAKE

  Gentlemen

  Last night I was reading my release notes for my 16 MG ISA Flash card before installing in my PIX 520. The release notes indicate that I have to check if I have a 520 PIX "CO" or "MAKE". A worm show command does not reveal this? I have a small white sticker on the box that says "PIX 520" with no further details.

  How can I determine if I have one of these models 'CO' or 'DOING '. It is safe to assume that if she does not, I can go ahead with the upgrade?

  Also, I have 2 of these cards to 16 mg. I can put the two or is 16 Cape on Flash... I ask because I want to code ver 6.2.2. In addition to install PDM version 2...

  Thank you

  Kevin

  It usuallt you indicates on the label, but you can tell by the serial number as well.

  A0 PIX are between 18005000-18013334

  B0 PIX are between 18013335-18015503

  C0 PIX are between 18015504-18025676

  D0 and E0 are 18025677 and more

  Note that there may be a 44 in front of these numbers on your serial number label.

  Also note that the installation instructions say the 16Meg card is not compatible with the PIX of C0 (or at least he used to say that), it won't and you can install this card without problem.

  Make sure that you first remove the existing 2Meg card, otherwise the PIX will not work. The card is one without the external connectors on it at the back.

  You can only put one of these cards in, no need for both. You will be able to load 6.2 (2) and PDM with no problems.

• 3DES throughput of PIX 520?

  Hello

  Anyone know what is the PIX 520 3DES throughput? (No VPN accelerator card)

  Thank you

  Hi Oneill,

  As PIX520 EOL, it took me a bit of searching to find it, so I hope this helps you...

  http://www.Cisco.com/warp/public/cc/PD/FW/sqfw500/prodlit/963_pp.htm

  Software and hardware encryption

  Version 5.0 (1), with the addition of the appropriate encryption key, provides encryption based on the software for THE (56-bit) and 3DES (168-bit), as support for the acceleration OF only using the PL2 existing (PrivateLink) map. Users can expect to see a minimum of 10 to 20 Mbps of throughput for 3DES connections and 30 to 40 Mbps of throughput for using encryption based on PIX software. Customers who use the card PL2 can expect to double their throughput OF. NOTE: The PL2 card does NOT support 3DES encryption. In addition, the low number for above mentioned 3DES throughput is for the 515 PIX with a 200 MHz processor, and the high number is for 520 PIX with a 350 MHz processor.

  Kind regards

  Abdelouahed

  -=-=-

• PIX 520 & 6.3 (5) worm.

  We have some Cisco PIX 520 firewall

  And, we want to update its version for more later... 6.3 (5), is it possible?.

  Thank you.

  No problem for version 6.3 (5) don't forget but version 7.0.

  Release notes:

  PIX 520 requirements: 16 MB (Some PIX 520 units possibly an upgrade of memory because the older models had 2 MB, although newer units have 16 MB)

  http://www.Cisco.com/en/us/products/sw/secursw/ps2120/prod_release_note09186a00804e6d6d.html#wp31988

  http://www.Cisco.com/en/us/products/sw/secursw/ps2120/prod_release_notes_list.html

  sincerely

  Patrick

• Im having a problem with your security software.  Your data bass must be bad, now I can't have spent my address question.  Ive answered all questions to the best of my knowledge and software has always said that my answers are incorrect

  Im having a problem with your security software.  Your data bass must be bad, now I can't have spent my address question.  Ive answered all questions to the best of my knowledge and software has always said that my answers are incorrect

  Hello Bernard,.

  You sign a document that has authentication based on knowledge, applied in it? If so, and if you can't go to questions, then you will need to contact the sender of the document because they can remove it and return you the document. You can respond directly to the e-mail received esign and happens directly from the sender.

  Kind regards

  -Usman

• 3051 a J611 series: Wireless IP address question NOT APPLICABLE

  I lists only the complications I see, do not hesitate to ask for more information. I have been through troubleshooting, all services, reset the printer has been added manually and constantly appears in the allowed list of MAC. Even hear that someone else had this problem would be a relief as I saw nothing indicating past connectivity fail problem.

  The wireless test page results as follows:

  DIAGNOSTIC RESULTS

  > Connectitivity

  -Does not work

  > settings

  -No filtering Fail

  -Channel not working

  CURRENT CONFIGURATION
  -IP address not applicable

  -Configuration not applicable Source

  Hi @mlamkin,

  Welcome to the HP Forums!

  I understand that you have problems with your HP Deskjet 3051 a J611 series printer connection. I'm happy to help you!

  To get help, I'll need some more information:

  • If you use Windows or operating system Mac and the version number. To find the exact version, visit this link. Whatsmyos.
  • If the power cable is connected to a surge protector, or directly to a wall outlet. Questions when it is connected to an uninterruptible power supply/Strip/surge protector power. This is true for printers and ink jet.

  If you are using Windows, please try our HP print and Scan Doctor.

  Also, I recommend this site, HP Wireless Printing Center - Troubleshooting.

  Thank you for posting!

• Fleeing from a host on the PIX 520 but alerts that are still coming to the IDS

  Last week I saw allot of traffic from a particular host that triggers alerts IDS. After investigating the source, I added a statement SHUN to the pix. When I do a 'sho shun stat' of the NTC for this host is quite high (352) and rises. I still get alerts of the IDS on this particular host (Fragment IP and host sweeps). I guess if I was fleeing from an IP address, I don't receive alerts of IDS on that. Can someone explain what I am doing wrong? Thanks in advance.

  Seems obvious, but can't hurt to ask - where the sniff of your sensor interface? Of course, if your sniffing interface is located outside the pix, then junk traffic will always reach the pix - it just won't be through it.

  In addition, are fleeing this host for these alarms? Doing a show 'show shun' that host being blocked FOR the time you see alerts for this particular host?

  Jeff

• PIX 520

  Can I allow outside users to connect to an IP address on the inside with the help of NAT I need to establish a connection with a DCOM application and apparently it does ' t work with NAT.

  Thank you

  To establish a connection between the external and internal interface interface, you need a static and an ACL. The static method CAN map the IP address of the host to himself, effectively bypassing NAT, but this means that the internal host must have valid Internet a routable IP address.

  For example, assume that your internal host has a 209.1.2.3 Internet address, your config might look like:

  > static (inside, outside) 209.1.2.3 209.1.2.3 netmask 255.255.255.255 0 0

  > list of allowed inbound ip access any host 209.1.2.3

  > interface incoming group-access outside

  Of course, you should make sure that 209.1.2.3 is routed to your PIX.

• Pix 515E, VERY basic question

  I just pulled the thing out of the box and he turned on.

  I put it on our internal network plugged a laptop inside interface and went through the Setup Wizard.

  I gave the external interface a static address, said pat for internal systems (just the laptop listed above), and all seemed well.

  He already seems to be an access rule that allows all outbound traffic, but I can see something beyond the inside interface (192.168.1.1) on the laptop.

  I ping around the world since the pix, but the poor internal system sees nothing.

  I am very new to Cisco and am sure I'm missing something basic.

  Anyone want to help our a beginner?

  Thank you!

  Hello

  You can watch the traffic on any interface by applying

  the folloving command

  capture (capture name) int (interface name)

  through the show (name of capture) capt command you

  See the packets captured on this interface

  Example: I want to watch the traffic on the inside of the interface

  In capture tony type mode interface privileged (#) inside the

  then see tony snapshot

  In this case, you should see incoming ICMP echo packets to the laptop. (I don't think they come, I guess you don't have the road to the 192.168.0.0 network (or just default to 192.168.1.1 - and only road!) in your laptop). Try the road print on laptop computer command to check.

  ICMP commands in your configuration are not ACL commands, they control only ICMP join the PIX

  interfaces, no ICMP by PIX.

  So I don't think that you can successfully ping

  192.168.0.111 ICMP echo packets, but should leave

  the PIX outside interface and the response to the ICMP echo

  192.168.0.111 packets would be arrested to that

  return ping interface. This could be seen in

  PIX log (see the logg). You must start logging in configuration by

  conf t

  LOGG on

  LOGG buff 7

  You can also apply the capture on the external interface.

  To get the return of packages 192.168.0.111 ping, you must apply a list of access on the external interface of the PIX. As written in the previous post.

  HTH

  Zdenek

• PIX 6.3 address "static" overlap?

  Hello!

  Our DMZ subnets are part of our class 'inside' the B network definition, like this:

  static (dmzMail, outsideBelwue) 1.2.240.60 1.2.240.60 netmask 255.255.255.255 0 0

  [...]

  static (dmzMail, outsideBelwue) 1.2.240.52 1.2.240.62 netmask 255.255.255.255 0 0

  static (inside, dmzMail) 1.2.0.0 1.2.0.0 mask 255.255.0.0 subnet 0 0

  static (inside, outsideBelwue) 1.2.0.0 1.2.0.0 mask 255.255.0.0 subnet 0 0

  NAT (inside) 0 1.2.0.0 255.255.0.0 0 0

  NAT (dmzMail) 0 1.2.240.32 255.255.255.224 0 0

  This is an illegal address overlap?

  Well, it is a banner on the NAT commands and will not work.

  Let´s through your config proposed and explain why it is not correct (it might help to understand the behaviour of PIX), so I'll quote some things and explain.

  static (dmzMail, outsideBelwue) 1.2.240.60 1.2.240.60 netmask 255.255.255.255 0 0

  Fix. The PIX creates a static translation, knows that the address 1.2.240.60/32 is on the interface dmzMail and proxy-ARP for this address 1.2.240.60/24 on the outsideBelwue interface.

  static (dmzMail, outsideBelwue) 1.2.240.52 1.2.240.62 netmask 255.255.255.255 0 0

  I think you made a small typo here (52 to 62 static?), but this one is (like the first) correct.

  static (inside, dmzMail) 1.2.0.0 1.2.0.0 mask 255.255.0.0 subnet 0 0

  Here you get some problems, if you go to the value of it. Why?

  Well, with this line of config you actually tell the PIX all networks of 1.2.0.0/16 are within the interface (and remember, you said with the two previous commands that two addresses within this space were actually on the dmzMail).

  Based on this the PIX will be proxy-ARP for all addresses in 1.2.0.0/16 on the dmzMail, also for the 1.2.240.0/24 subnet interface (I think it's the subnet on your dmzMail segment)

  The situation you´re with this config is also known under the name of statements of NAT that overlap, which can be a bitch to solve problems in complex configurations and PIX´s with a lot of traffic.

  Best thing to do here is use the smallest subnet mask and only the static value inside for the subnets within the range which are actually used

  inside the interface. I know, you have to do a few hits more: s

  If you do it this way, you need not the command nat 0, causes the PIX already translations in the xlate due table static controls in place, so that users will already be able to start sessions.

  I hope this helps. If further help is needed, feel free to ask.

  Kind regards

  Leo

  It's the same thing for the last static command

• Access PIX list deny statement questions

  I have an ip address of the internet I want to access my network, however, I have problems with my access list statement. Here's what I'm trying, but it does not prevent access. Any help is appreciated

  acl_outside access-list deny tcp host 216.17.156.110 all (hitcnt = 0)

  acl_outside list access deny tcp host 216.17.156.110 host 216.183.97.151 eq www (hitcnt = 0)

  access list acl-outside deny udp host 216.17.156.110 all (hitcnt = 0)

  access list acl-outside deny tcp host 216.17.156.110 all (hitcnt = 0)

  access list acl-outside deny tcp host 216.17.156.110 eq www 216.183.97.151 (hitcnt = 0)

  deny access list acl-outside ip host 216.17.156.110 216.183.97.151 (hitcnt = 0)

  Where 216.17.156.110 is the host I want to ban my entire network or more precisely 216.183.97.151

  Also curious which direction the bed PIX list access from bottom to top assuming that since the background is where are the declarations of refusal?

  The bed PIX list ACL from top to bottom, released by when he sees the first game. If you have a license above will never be seen these lines allowing access to "any" so these lines at the bottom.

  Your best bet is to cut and paste your ACL course in a text file, add the following line TO THE TOP of the list, then delete the list ACL of your PIX and cut and paste your new back in.

  > acl_outside list access denied the host ip 216.17.156.110 all

  To get rid of your current ACL, simply do:

  > no acl_outside access list

  then, as I said, cut and paste your new back in. Make sure also your name of the access list, half the access list you have shown in your post is called "acl_outside" (Note underscore) and half of them are 'acl-outside' (note the dash). Make sure you check what name access list is applied to the external interface and line up properly.