NAT-control over ASA 5540 v8.3.2?

Similar Questions

• ASA - 5540 used for IPSec VPN only - I can do away with Nat 0?

  I'll use an ASA 5540 as our head of VPN endpoint only - and not as a firewall.

  Also, we have a class for our company internal address space routable B address, so we don't need NAT. I would like to disable the function NAT 0 if I can so I always add NAT 0 to ensure that the 5540 does not NAT.

  Y at - it an easy way to disable the need using NAT 0?

  Are there any of the draw to do that?

  You can disable the use of nat 0 disabling the nat control.

  To achieve this, go to the global configuration mode and use this command:

  no nat control

  To check whether you have it turned on, you can check it with:

  SH run nat-control

  See you soon!

  -Butterfly

• VPN Cisco ASA 5540 L2L - one-way traffic only for the pair to a network

  Hello

  I'm a little confused as to which is the problem. This is the premise for the problem I have face.

  One of our big clients has a Cisco ASA5540 (8.2 (2)) failover (active / standby). Early last year, we have configured a VPN from Lan to Lan to a 3rd party site (a device of control point on their end). He worked until early this week when suddenly the connection problems.

  Only 1 of the 3 networks the / guests can access a remote network on the other side. 2 others have suddenly stopped working. We do not know of any change on our side and the remote end also insists that their end configurations are correct (and what information they sent me it seems to be correct)

  So essentially the encryption field is configured as follows:

  access-list line 1 permit extended ip 10.238.57.21 host 10.82.0.202 (hitcnt = 2)
  access-list line 2 extended permit ip 10.207.0.0 255.255.0.0 10.82.0.200 255.255.255.252 (hitcnt = 198)
  access-list line 3 extended permit ip 10.231.191.0 255.255.255.0 10.82.0.200 255.255.255.252 (hitcnt = 173)

  Free NAT has been configured as follows (names modified interfaces):

  NAT (interface1) 0-list of access to the INTERIOR-VPN-SHEEP

  the INTERIOR-VPN-SHEEP line 1 permit access list extended ip 10.231.191.0 255.255.255.0 10.82.0.200 255.255.255.252
  permit for Access-list SHEEP-VPN-INSIDE line lengthened 2 ip host 10.238.57.21 10.82.0.202

  NAT (interface2) 0-list of access VPN-SHEEP

  VPN-SHEEP line 1 permit access list extended ip 10.207.0.0 255.255.0.0 10.82.0.200 255.255.255.252

  After the problem started only 10.207.0.0/16 network connections worked for the site remote 10.82.0.200/30. All other connections do not work.

  There has been no change made on our side and on the side remote also insists there has been no change. I also checked how long the ASAs have been upward and how long the same device has been active in the failover. Both have been at the same time (about a year)

  The main problem is that users of the 10.231.191.0/24 cant access remote network network. However, the remote user can initiate and implement the VPN on their side but usually get any return traffic. Ive also checked that the routes are configured correctly in the routers in core for the return of their connections traffic should go back to the firewall.

  Also used of "packet - trace" event raising the VPN tunnel (even if it passes the phases VPN). For my understanding "packet - trace" alone with the IP source and destination addresses must activate the VPN connection (even if it generates no traffic to the current tunnel).

  This is printing to the following command: "packet - trace entry interface1 tcp 10.231.191.100 1025 10.82.0.203 80.

  Phase: 1
  Type: ACCESS-LIST
  Subtype:
  Result: ALLOW
  Config:
  Implicit rule
  Additional information:
  MAC access list

  Phase: 2
  Type: FLOW-SEARCH
  Subtype:
  Result: ALLOW
  Config:
  Additional information:
  Not found no corresponding stream, creating a new stream

  Phase: 3
  Type:-ROUTE SEARCH
  Subtype: entry
  Result: ALLOW
  Config:
  Additional information:
  in 10.82.0.200 255.255.255.252 outside

  Phase: 4
  Type: ACCESS-LIST
  Subtype: Journal
  Result: ALLOW
  Config:
  Access-group interface interface1
  access-list extended allow ip 10.231.191.0 255.255.255.0 10.82.0.200 255.255.255.252
  Additional information:

  Phase: 5
  Type: IP-OPTIONS
  Subtype:
  Result: ALLOW
  Config:
  Additional information:

  Phase: 6
  Type: INSPECT
  Subtype: np - inspect
  Result: ALLOW
  Config:
  class-map inspection_default
  match default-inspection-traffic
  Policy-map global_policy
  class inspection_default
  inspect the http
  global service-policy global_policy
  Additional information:

  Phase: 7
  Type: FOVER
  Subtype: Eve-updated
  Result: ALLOW
  Config:
  Additional information:

  Phase: 8
  Type: NAT-FREE
  Subtype:
  Result: ALLOW
  Config:
  NAT-control
  is the intellectual property inside 10.231.191.0 255.255.255.0 outside 10.82.0.200 255.255.255.252
  Exempt from NAT
  translate_hits = 32, untranslate_hits = 35251
  Additional information:

  -Phase 9 is a static nat of the problem to another network interface. Don't know why his watch to print.

  Phase: 9
  Type: NAT
  Subtype: host-limits
  Result: ALLOW
  Config:
  static (interface1, interface3) 10.231.0.0 10.231.0.0 255.255.0.0 subnet mask
  NAT-control
  is the intellectual property inside 10.231.0.0 255.255.0.0 interface3 all
  static translation at 10.231.0.0
  translate_hits = 153954, untranslate_hits = 88
  Additional information:

  -Phase 10 seems to be the default NAT for the local network configuration when traffic is to the Internet

  Phase: 10
  Type: NAT
  Subtype:
  Result: ALLOW
  Config:
  NAT (interface1) 5 10.231.191.0 255.255.255.0
  NAT-control
  is the intellectual property inside 10.231.191.0 255.255.255.0 outside of any
  dynamic translation of hen 5 (y.y.y.y)
  translate_hits = 3048900, untranslate_hits = 77195
  Additional information:

  Phase: 11
  Type: VPN
  Subtype: encrypt
  Result: ALLOW
  Config:
  Additional information:

  Phase: 12
  Type: VPN
  Subtype: ipsec-tunnel-flow
  Result: ALLOW
  Config:
  Additional information:

  Phase: 13
  Type: IP-OPTIONS
  Subtype:
  Result: ALLOW
  Config:
  Additional information:

  Phase: 14
  Type: CREATING STREAMS
  Subtype:
  Result: ALLOW
  Config:
  Additional information:
  New workflow created with the 1047981896 id, package sent to the next module

  Result:
  input interface: interface1
  entry status: to the top
  entry-line-status: to the top
  output interface: outside
  the status of the output: to the top
  output-line-status: to the top
  Action: allow

  So, basically, the connection should properly go to connect VPN L2L but yet is not. I tried to generate customer traffic of base (with the source IP address of the client network and I see the connection on the firewall, but yet there is absolutely no encapsulated packets when I check "crypto ipsec to show his" regarding this connection VPN L2L.) Its almost as if the firewall only transfers the packets on the external interface instead of encapsulating for VPN?

  And as I said, at the same time the remote end can activate the connection between these 2 networks very well, but just won't get any traffic back to their echo ICMP messages.

  access-list extended allow ip 10.231.191.0 255.255.255.0 10.82.0.200 255.255.255.252
  local ident (addr, mask, prot, port): (10.231.191.0/255.255.255.0/0/0)
  Remote ident (addr, mask, prot, port): (10.82.0.200/255.255.255.252/0/0)
  current_peer: y.y.y.y

  #pkts program: encrypt 0, #pkts: 0, #pkts digest: 0
  #pkts decaps: 131, #pkts decrypt: 131, #pkts check: 131
  compressed #pkts: 0, unzipped #pkts: 0
  #pkts uncompressed: 0, comp #pkts failed: 0, #pkts Dang failed: 0
  success #frag before: 0, failures before #frag: 0, #fragments created: 0
  Sent #PMTUs: 0, #PMTUs rcvd: 0, reassembly: 20th century / of frgs #decapsulated: 0
  #send errors: 0, #recv errors: 0

  If it was just a routing problem it would be a simple thing to fix, but it is not because I can see the connection I have to confirm it by the router base on the firewall, but they don't just get passed on to the VPN connection.

  Could this happen due to a bug in the Software ASA? Would this be something with Checkpoint VPN device? (I have absolutely no experience with devices of control point)

  If there is any essential information that I can give, please ask.

  -Jouni

  Jouni,

  8.2.4.1 is the minimum - 8.2.4 had some issues (including TCP proxy).

  If this does not resolve the problem - I suggest open TAC box to get to the bottom of this ;-)

  Marcin

• No control over sound

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  The noise increases even if you delete the siri away from the room.

• C7280 - cannot scan. Error message indicates another program has control over the device

  I open the HP Device Manager to do a scan. I accepted the parameters and the scanning started. But the part passing through the analysis, I stopped the scan that I realized that I wanted to change the resolution. I leave the Manager device and rebooted but when I did, I got to tell an error message:

  'Cannot perform the function you have requested because another program has control over ice dev'.

  I have nothing else open and so I can't work on what program has control over the printer.

  C7280 Prtinter. Mac OS x 10.7.

  The Device Manager has not been updated for Lion and there is still no specific Lion software for your printer.

  So far, you have the choice of scanning with picture Capture or preview.  I'm sorry.

• The ' sort by ' disappeared in the menu toolbars, have more control over the Organization of files and folders

  The ' sort by ' disappeared in the menu toolbars.  No need for control over the Organization of files and folders.  Please advise.

  * original title - I can't delete automatically rearrange the menu toolbars so that I can sort the folders and files that I have wish.*

  Hello

  ·          Were there any changes made to the computer until the problem occurred?

  ·          Have you tried right click and check the context Menu?

  ·          This happens for any particular folder?

  Step 1:

  You can check if the same thing happens in a new user account. To create a new user account

  http://Windows.Microsoft.com/en-us/Windows7/create-a-user-account

  Step 2:

  If the new user account works fine then the old account has been corrupted, you can follow the link given below to fix the corrupted user profile.

  http://Windows.Microsoft.com/en-us/Windows7/fix-a-corrupted-user-profile

  Amrita M

  Microsoft Answers Support Engineer
  Visit our Microsoft answers feedback Forum and let us know what you think.

• PIX of migration of AAS and Nat-control

  If I disable Nat-control, does that mean that incoming traffic via my external interface to a routable subnet on a DMZ is not subject to the stateful inspection?

  Hi Jim

  No it's not. You should always allow traffic with access lists, and when a connection is made from the outside to the demilitarized zone, it will always automatically be entered in the status table.

  NAT and stateful inspection are 2 different things.

  HTH

  Jon

• WRVS4400N ASA 5540 L2L IPSec connection

  I have a remote WRVS4400N with a dynamic outside the address that opens a connection to an ASA 5540 with a static address.

  I'm all set on the side of the ASA.  My questions concern the 4400N.  It does not seem to have a very robust configuration/configuration available for L2L tunnels.  For one my encryption is limited to 3DES.

  But I wonder if I'm missing something in the config.  I have to configure L2L tunnels to two other firewalls.  One firewall has 3 non-contiguous networks, and the other has 2.  I have 5 tunnels configuration, this is the only way?  What I'd like to see is 2 tunnels, one for each firewall distance, but then each tunnel would have access to networks (like on the side of the ASA), is anyway to do this?  Perhaps a useful command line for this unit?

  My other question concerns the tunnel-groups I've implemented on my ASA, and I do not want to use the proper names... However I can't seem to find a way to allow this to happen on the side of 4400N... I mean, I need a way to create a 'keyword' identifier or a "firewall identifier" on the 4400N and I do not see an appropriate field in the web interface.  Someone at - it ideas?

  Thanks in advance.

  Hi WS, the WRVS router does not support a complete tunnel configuration or routes to have a multi site configuration. You would need a separate tunnel for each location.

  Traditionally, the WRVS router was not a good game on any platform ASA. In most cases, I saw when a tunnel has put in place will be the router WRVS crash in an hour or less due to low memory. If you run a scenario where the WRVS stops responding or the tunnel down, this is the likely scenario.

  I highly recommend is not to use the WRVS router for all tunnel with the ASA. If you are looking to stay in the field of small business, a RV220W or a RV042 router would be a much more suitable match.

  -Tom
  Please mark replied messages useful

• The profile number vpn that can be created in cisco asa 5540

  Hi all

  Want to know if there is a limit to how many anyconnect vpn profiles that can be created in a cisco asa 5540? TIA!

  https://www.Cisco.com/c/en/us/TD/docs/security/ASA/asa80/configuration/g...

  Maximum connection profiles

  The maximum number of connection profiles (tunnel groups) that can support a safety device is a function of the maximum number of concurrent sessions of VPN for the + 5 platform. For example, an ASA5505 can support a maximum of 25 concurrent sessions of VPN to 30 tunnel groups (25 + 5). Attempt to add a group of additional tunnel beyond the results of limit in the following message: "ERROR: the limit of 30 groups configured tunnel has been reached.

  Table 32-2specifies the maximum VPN sessions and profiles of connection for each platform ASA.

  Table 32-2 maximum VPN Sessions and profiles of connection by ASA platform

  	5505 database / security more	5510/base/security Plus	5520	5540	5550
  Maximum VPN sessions	10/25	250	750	5000	5000
  Maximum connection profiles	15/30	255	755	5005	5005

• VPN site to site by using the host name on cisco asa 5540 - dyndns

  Can someone help me configure VPN site to site on cisco asa 5540. The other end is seen configured dyndns and so should set up her counterpart with the host name.

  If the other end is a dynamic IP address, you must configure a dynamic map and then use in the encryption card

  See the following example.

  http://www.Cisco.com/en/us/partner/products/ps6120/products_configuration_example09186a00805733df.shtml

• How can I get an ASA 5540 return to the default configuration?

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  The ASA 5540 is running on asa723 - k8.bin.

  factory default setting

  http://www.Cisco.com/en/us/docs/security/ASA/asa72/command/reference/c4_72.html#wp2039866

  a simple "write erase/recharge" would also do the trick.

• No control over printing

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• IPSec tunnel do not come between two ASA - 5540 s.

  I've included the appropriate configuration of the two ASA lines - 5540 s that I'm trying to set up a tunnel of 2 lan lan between. The first few lines show the messages that are generated when I try to ping another host on each side.

  Did I miss something that will prevent the tunnel to come?

  4 IP = 10.10.1.147, error: cannot delete PeerTblEntry

  3 IP = 10.10.1.147, Removing peer to peer table has not, no match!

  6 IP = 10.10.1.147, P1 retransmit msg sent to the WSF MM

  5 IP is 10.10.1.147, in double Phase 1 detected package. Retransmit the last packet.

  6 IP = 10.10.1.147, P1 retransmit msg sent to the WSF MM

  5 IP is 10.10.1.147, in double Phase 1 detected package. Retransmit the last packet.

  4 IP = 10.10.1.147, error: cannot delete PeerTblEntry

  3 IP = 10.10.1.147, Removing peer to peer table has not, no match!

  6 IP = 10.10.1.147, Queuing KEY-ACQUIRE messages are treated when SA P1 is finished.

  6 IP = 10.10.1.147, Queuing KEY-ACQUIRE messages are treated when SA P1 is finished.

  6 IP = 10.10.1.147, Queuing KEY-ACQUIRE messages are treated when SA P1 is finished.

  5 IP = 10.10.1.147, IKE initiator: New Phase 1, Intf inside, IKE Peer 10.10.1.147 address Proxy local 10.10.1.135, Proxy address remote 10.10.1.155, Card Crypto (outside_map0)

  ROC-ASA5540-A # sh run

  !

  ASA Version 8.0 (3)

  !

  CRO-ASA5540-A host name

  names of

  10.10.1.135 GHC_Laptop description name to test the VPN

  10.10.1.155 SunMed_pc description name to test the VPN

  !

  interface GigabitEthernet0/0

  Speed 100

  full duplex

  nameif inside

  security-level 100

  IP 10.10.1.129 255.255.255.240

  !

  interface GigabitEthernet0/3

  nameif outside

  security-level 0

  IP 10.10.1.145 255.255.255.248

  !

  !

  outside_2_cryptomap list extended access permit ip host host GHC_Laptop SunMed_pc

  !

  ASDM image disk0: / asdm - 603.bin

  !

  Route outside 255.255.255.248 10.10.1.152 10.10.1.147 1

  !

  Crypto ipsec transform-set esp-SHA-ESP-3DES-3des esp-sha-hmac

  card crypto game 2 outside_map0 address outside_2_cryptomap

  outside_map0 crypto map peer set 2 10.10.1.147

  card crypto outside_map0 2 the value transform-set ESP-3DES-SHA

  outside_map0 card crypto 2 set nat-t-disable

  outside_map0 interface card crypto outside

  crypto ISAKMP allow outside

  crypto ISAKMP policy 5

  preshared authentication

  3des encryption

  sha hash

  Group 2

  life 86400

  !

  Group Policy Lan-2-Lan_only internal

  attributes of Lan-2-Lan_only-group policy

  VPN-filter no

  Protocol-tunnel-VPN IPSec

  tunnel-group 10.10.1.147 type ipsec-l2l

  IPSec-attributes tunnel-group 10.10.1.147

  pre-shared-key *.

  !

  ROC-ASA5540-A #.

  ----------------------------------------------------------

  ROC-ASA5540-B # sh run

  : Saved

  :

  ASA Version 8.0 (3)

  !

  name of host ROC-ASA5540-B

  !

  names of

  name 10.10.1.135 GHC_laptop

  name 10.10.1.155 SunMed_PC

  !

  interface GigabitEthernet0/0

  Speed 100

  full duplex

  nameif inside

  security-level 100

  IP 10.10.1.153 255.255.255.248

  !

  interface GigabitEthernet0/3

  nameif outside

  security-level 0

  IP 10.10.1.147 255.255.255.248

  !

  outside_cryptomap list extended access permit ip host host SunMed_PC GHC_laptop

  !

  ASDM image disk0: / asdm - 603.bin

  !

  Crypto ipsec transform-set esp-SHA-ESP-3DES-3des esp-sha-hmac

  card crypto outside_map2 1 match address outside_cryptomap

  outside_map2 card crypto 1jeu peer 10.10.1.145

  outside_map2 card crypto 1jeu transform-set ESP-3DES-SHA

  outside_map2 card crypto 1jeu nat-t-disable

  outside_map2 interface card crypto outside

  crypto ISAKMP allow inside

  crypto ISAKMP policy 5

  preshared authentication

  3des encryption

  sha hash

  Group 2

  life 86400

  !

  internal Lan-2-Lan group strategy

  Lan Lan 2-strategy of group attributes

  Protocol-tunnel-VPN IPSec

  tunnel-group 10.10.1.145 type ipsec-l2l

  IPSec-attributes tunnel-group 10.10.1.145

  pre-shared-key *.

  !

  ROC-ASA5540-B #.

  On the ASA of ROC-ASA5540-B, you have "isakmp allows inside", it should be "enable isakmp outside."

  Please reconfigure the ASA and let me know how it goes.

  Kind regards

  Arul

  * Please note the useful messages *.

• NAT before VPN - ASA L2L 8.3?

  Hello

  I have the following scenario: -.

  A net - network 172.20.82.0/24 (under my control)

  B ' net - network audience (beyond my control)

  I have a lot of servers on the Net (172.20.82.0/24) network I would PAT behind a public IP address before it is sent over a virtual private network to the remote site (Net (B). By some read far quickly, my understanding is that I'm going to need to: -.

  (a) conduct an "indoor/outdoor" PAT on the Net 'interesting' traffic to my address of PAT Public front I then...

  (b) apply the new address Public PAT crypto and ACL "NAT 0".

  i.e.

  one)

  access-list allowed NET_A_PAT 172.20.82.0 255.255.255.0 NET_B_NETWORK NET_B_NETMASK

  NAT (inside) 20 access-list NET_A_PAT

  MY_PUBLIC_PAT overall, 20 (outdoor)

  then (b)

  NO_NAT list extended access permit ip host MY_PUBLIC_PAT NET_B_NETWORK NET_B_NETMASK

  CRYPTO_MAP list extended access permit ip host MY_PUBLIC_PAT NET_B_NETWORK NET_B_NETMASK

  First question is - is it good? I think it is, but I'm just wanting clarification.

  Second question is: I is also launching a 'standard' CARESS on the 'outside' of the SAA for internet traffic normal (Internet) interface - navigation etc. If I play a PAT inside and outside as shown above, not then try and pass packets encrypted using my 'new' PAT instead of the IP Address of the remote VPN endpoint interface? Or take it to process my first PAT crypto then re - wrap by using the 'real' outside interface IP PAT?

  Hope I'm reasonably clear - thanks in advance.

  (a) correct

  (b) in part reason, crypto ACL is correct, however, you don't need NAT 0 ACL like you do a PAT.

  Second question - no, PAT comes first, then it will encrypt the packet with the IP Address of the interface that is the VPN endpoint.

• Digital control over several orders of magnitude

  Hi all,

  I'm trying to get a digital control with a suitable addition to the order of magnitude.

  For example, I have a front panel for an osziloscope, sometimes that samples on some ns, sometimes a few seconds, sometimes a few milivolts, sometimes a few volts, who knows, right
  I was playing around with the digital control units, but it doesn't quite fit my needs. I can't change the prefix of a unit on the duration, for example of microseconds to seconds, but then I change the issue as well, because on change the prefix, the previous number is only multiplied by the factor according to, for example, 1000, so 5 became US 5th-6s. So change the record length of the default value of 500 ms to 100 ns would require two klicks type, and I can instead just type "100th-9', which is good too."

  However, I would like to have a digital control from 0 to 1000 combined with for example a button for prefix i.e. nano, micro, mili etc. and combine this values internally, i.e. of mulitplying accordingly. But I couldn't set the increment to "3 orders of magnitude" even with the option to log scale.

  I know, I could use an enum with the names and values according to, but this is not very satisfactory.

  So perhaps the question would be: is it possible to combine two digital controls or the value for the prefix, in a suitable and easy way? Or how do you manage the digital values over several orders of magnitude in a case like mine?

  Thanks for your replies in advance.

  Best,

  bastlwastl

  Display format is SI units

  

  It helps in these situations