Restrict the public IP address of Source-based ASA 5500 VPN remote access

Similar Questions

• Is it posible to the public ip address of the default locking?

  Is it posible to block the public IP address by default on multiWAN routers?

  I have several RV016 with up to 4 30Mbps Internet VDSL lines each and using the latest firmware to load 50-200 customer balance.

  When it is used for navigation, some sites will have to lock public source IP of the customer (especially sites that requires a user authentication).

  From a server point of view, public IP address will be between public IPs provided by ISP, automatic suite 4 round robin load balancing strategy.

  As public IP, read by the server changed server reduced session, users will need to enter username and password again to connect.

  Is it posible to lock this public IP for awhile to idle? (he has been featured on my old router BeWAN LX400H as "timer LockSource IP")

  ebarriera,

  The RV016 has no functionality like timer LockSource IP unfortunately. It's a common problem with load in the Cisco Small Business routers and key balancing mainly "secure them" traffic like HTTPS and RDP. I would test balance HTTP traffic and link HTTPS traffic to a WAN port and see if you get decent results.

  -Marty

• Configure my VCSC with VCSe on the public IP address

  Hi guys,.

  I have a session of control VCS under my company Private IP and I my client on public IP VCSe.

  It will be possible to configure my VCSC with the VCSe after the configuration of the areas?

  The ports must be opened by my team of firewall in this scenario?

  Anything else I need to keep in mind.

  For the record, it is only for the objective test.

  You will appreciate any response.

  Thank you

  Saurabh

  > Then, practically there is no as such risk, and my client can use the public IP address on VCSe

  > without going to double network Option key. (which is used to secure more VCSe).

  Cisco highly recommend VCS-E deploy under the DMZ but it's true, too, many customers deploy VCS - E on public network directly.

  Please visit https://supportforums.cisco.com/thread/2154738?tstart=150 for more information security VCS.

  Next version of the plan to be supported VCS X7.2 software build - in the characteristic basic firewall, which allows configuration to allow/deny list based on the IP / port / protocol which should contribute to better security level or even VCS-E deployment on the public network directly.

  > So, I'll ask my client just buy a public IP address, that's all, and we are ready to go?

  A public IP will demand on VCS Expressway, VCS control can be use the NAT address glow (IE share internet access of the network of offices).

  You must also SRV DNS management (if small deployment probably better to use the external DNS service, there are a lot of company provide a service the two service also responsible DNS hosting and as free service).

• How can I hold the public IP address on a specific profile on the asa 5510

  Hi guys

  How can I hold the public IP address on my session NAT VPN cisco customer for no one else can use it? I have a cisco ASA 5510

  the Interior is 172.10.20.86

  public 166.245.192.90

  Need to call my ISP?

  Thank you

  Sorry to say but your qustion is not very clear. Can you please post what you are trying to achieve?

  Thank you

  Ajay

• Windows 7 keeps changing home network to the public network, without pompting, in this case I can't access the internet, even though my router still receives the internet signal.

  Windows 7 keeps changing home network to the public network without asking for confirmation, this prevents me to access the internet

  Hi douglas wilson,.

  Welcome to the Microsoft Answers site!

  Since when are you facing this problem?

  We need additional information to help you better.

  Make sure that you save the settings after clicking on homepage or work profile in the network profiles.

  Strengthen the security of your computer and your network:

  Identify and resolve home network problems:

  http://Windows.Microsoft.com/en-us/Windows7/identify-and-resolve-home-network-problems

  Open network problem:

  http://Windows.Microsoft.com/en-us/Windows7/open-networking-troubleshooters

  Kind regards
  Amal-Microsoft Support.
  Visit our Microsoft answers feedback Forum and let us know what you think.

• Configure the router WRT54G with the PUBLIC IP address and use the DHCP protocol for internal computers

  Hello

  I have a service online Internet with 5 public IP addresses.

  The router and the AP are connected to a switch.

  I would like to set up a WRT54G Router with a public IP address and use DHCP (with private ip address) for the computers that will connect to the AP.

  That the AP is connected to the switch, it is possible that the other wired computers that are connected to the same switch can get an IP from the DHCP?

  Thanks in advance

  In this case, the routing is automatic.

  WRT54G configuration:

  WAN:

  Internet connection: static IP address

  IP address: 180.X. X 170

  Subnet mask: 255.255.255.248

  Gateway: 180.x.x.x (Ex: 180.x.x.1)

  DNS: servers your ISP DNS

  LAN:

  The IP address of the router: 10.10.10.1

  DHCP range: 10.10.10.100 of-online 10.10.10.200

• EX90 two autonomous with the public IP address can make video calls among them self on the Internet or not?

  Dear expert;

  I am very new to VCS and TP Cisco.

  We implement now presence Cisco TV with VCS - C, VCS-E TMS, TCS, MCUS and endpoints with Jabber in a single edit.

  and in another configuration CUCM 10.5, UCCX 10.5 IM & P, Jabber with some 10 officers.

  Now the question is in our building on the 2nd floor we have an EX90 and on the 5th floor an EX90 and on local network, we can make video calls using the IP address.

  In the same way is it possible to make a video call between 2 devices EX90 (both have public IP) present in a location different in the same city on the Internet without the participation of VCS - C and VCS-E.

  It's the client request :)

  Concerning

  Paiva

  Yes, but leaving these systems outside in nature with public IP addresses, leaving you are vulnerable to a number of questions. See for example http://www.videonationsltd.co.uk/2014/11/h-323-cisco-spam-calls/

  https://supportforums.Cisco.com/discussion/12336591/sourceh323idcisco-incomingcalls

  https://supportforums.Cisco.com/discussion/12340591/nuisance-h323-calls-SX20

  The offers above with H.323 calls, in addition to this, you will encounter similar problems using SIP where the systems will be analyzed by tools such as SIPVicious

  /Jens

  Please note the answers and mark questions as "answered" as appropriate

• internal web server access to the content of the network using the public ip address

  Hi, I saw similar topics, but not a clear answer about it. I have a PIX 515e with two interfaces, a web server internal (ip 192.168.0.5) and internal users want to access the server by its (99.99.99.9) ie public ip address is not using DNS. Tried the command alias ' alias (inside) 99.99.99.9 192.168.0.5 "but does not work for http. I can access the server on the local network using the public address for smtp, pop3 and ftp with or without command alias, but not the http service. Any idea?

  a few quick comments.

  a function of the command "alias" is to force the pix to manipulate the dns response. However, you mentioned that you didn't use dns.

  'alias' command will also force the pix to send traffic to 192.168.0.5 when it receives a packet from the inside and intended to be 99.99.99.9. However, since the host and the server are located in the same segment, i.e. pix must re - route the packet to the inside interface, and this operation is not supported with pix v6.x.

  In addition, you mentioned the inside host can access the smtp, pop3 and ftp using 99.99.99.9. This is interesting because the host of 192.168.0.0 would not directly have access to the host of 99.99.99.x without router.

• The IP address private VC directly to the public IP address

  Hello

  I'm a bit puzzled as to why a specific call, I saw worked for a couple of guests and wonder if there was no change in the situation in the H.323 protocol that allows a form any NAT crossing built natively into the codec without involving and external gateway function.

  the reason I ask is the following

  I got a call from a customer with a codec on a private no routable IP to my system that is located on a public IP address, the client had no details of NAT configuration in the endpoint and was able to call my system directly without issue by calling directly to my public IP address.

  historically now if I had a system on a private IP address was sitting behind a NAT, I expect that the public system IP would see no routable IP address of the H.225 message and try to answer the private IP RTP media that would not go through, it does not seem to occur.

  the call that I have lived seemed ends without problem, media flowed in both directions.

  My endpoint is a Cisco edge 85 on the version of the firmware F9.x

  the other codec parts is an 85 edge on the version of the firmware F9.x

  My codec is on a public IP address that is completely open to the H.323 ports

  the other codec parts is on a private IP address.

  while I can't call the other party, the other party may call for me, and I wonder how it worked, taking into account the fact that there is no gateway service aware H.323 in the call, either a VCS or aware firewall H.323.

  Experience, firewalls and other gateways outside of Cisco, Tandberg, Polycom, have struggled to deal with the new H.323 version, again this is why I'm puzzled as to why the call worked.

  I did a bit of reading on the new version of H.323 and noticed the option multiplex logical channel, however on a call where I saw this apparently works again of a life-size codec for a Codian MCU 4505 shows no sign of this logical channel multiplex, unless that is named differently in the newspapers that the ITU document calls the function.

  greatly appreciated all all all the answers, I don't understand exactly how the firewall impact VC calls.

  Thinking with portals

  The MXP has NAT builtin functions. Please take a look at the guide admin 9.x:

  http://www.Cisco.com/en/us/docs/Telepresence/endpoint/MXP-series/F9/administration_guide/mxp_series_administrator_guide_f90_excl-full-menu-structure.PDF

  The description of the NAT setting is on page 77.

  EX series admin guide http://www.cisco.com/en/US/docs/telepresence/endpoint/ex-series/tc6/administration_guide/ex-series-administrator-guide-tc62.pdf has the same details on page 63.

• EBS 12i on Cloud server with the public IP address but no DMZ

  Hello

  I installed Oracle EBS in a server (such as AWS EC2) cloud with a public IP address. I'm simply looking for personal learning and knowledge about security risks. As there is no given production safety is not serious at this point.

  Also, I don't mean to enter the configurations of the DMZ at the moment.

  I am able to access APPS internally under the server on port 8000 with URL http://<server:8000>/OA_HTML/AppsLogin. but I'm unable to access the URL above on internet.

  
  

  The environment is EBS 12.2.0 on Oracle Linux 5.11.
  

  
  

  I tried the options following, but so far without success.

  1. I tried to completely disable the Linux and SELinux firewall on the server. I have also authorized above URL in my personal office. So the 8000 port is not blocked anywhere.

  2, I followed this note to try to set it up on port 80, but still without success-> configuration Oracle E-Business Suite Release 12 on Amazon Cloud Infrastructure (Doc ID 1205963.1). But you should know that mine isn't on AWS EC2 but similar model.

  So simple question is how can I access front-end EBS on internet (DMZ) using port 8000? I do need to update httpd.conf of EBS Webtier (besides point 2 above)?

  Any help will be greatly appreciated. Thank you.

  See you soon!

  Gray

  Hello

  I discovered that I was using the CDN was blocking port 8000. So when I bypassed the CDN, then I could manage to access the URL with the port 8000.

  Thanks a lot for your help on this one.

  Concerning

  Gray

• Cisco ASA, connect an IP address on the OUTSIDE of the VPN remote access

  Hello

  I tried to find resources on the net but could not find a solution, then post it here. Maybe someone can help.

  So the problem is that I'm trying to access a server on the cloud for remote VPN access (cisco asa 5510).

  The server on the cloud (54.54.54.54) is only accessible from the outside interface (192.168.11.2) NY Firewall (cisco asa 5510)

  I added some ACE for this in the ACL of VPN tunnel to divide.

  NY-standard host allowed fw # access - list vpn_remote-customer 54.54.54.54

  And I see the road added to my cliet machine after the VPN connection, but still it cannot connect to this server.

  The network INTERIOR, I can connect to the server.

  

  Thanks in advance.

  Hello

  This is most likely a problem with NAT hair/U-turn hairpin.

  Will need to see the configurations or you would need to check yourself

  I don't know what your version of the Software ASA is to be like who determines what is the format of NAT configuration.

  So far, you have confirmed that the ASA VPN configuration provides the VPN Client with the route to the remote server. Then in circulation should be tunnel to the ASA.

  Then, you will need to check the output of this command

  See the race same-security-traffic

  You should see the command in the output below

  permit same-security-traffic intra-interface

  If you do not, you will need to add it. This effect of controls is to allow traffic to enter an interface and exit through the same interface. In your case this applies to Internet VPN Client traffic to the remote server as it between ' outside ' and spell through the 'outside'.

  Then, should ensure that dynamic PAT is configured for the VPN Clients.

  8.2 software (and below)

  You most likely have a dynamic configuration PAT like that on the firewall, if levels of above running software version

  Global 1 interface (outside)

  NAT (inside) 1 0.0.0.0 0.0.0.0

  In this situation if we wanted to add dynamic PAT for a pool of VPN, we would add

  NAT (outside) 1

  This would allow users to use the same public IP address as LAN users, when accessing the remote VPN server

  Software 8.3 (and above)

  Because the NAT configuration format is completely different in the latest software, you could probably just add a new configuration of NAT completely without adding a

  network of the VPN-PAT object

  subnet

  dynamic NAT interface (outdoors, outdoor)

  Of course, its possible that there could be some configuration NAT already on the device which could cause problems for this configuration. If this does not work then that we would have to look at the actual configurations on the ASA.

  Hope this helps

  Let me know how it goes

  -Jouni

• ASA 5505 VPN cannot access inside the host

  I have access remote VPN configuration on an ASA 5505, but cannot access the host or the AAS when I connect through the VPN. I can connect with the Cisco VPN client and the VPN is on on the SAA and it shows that I am connected. I have the correct Ip address, but I can't ping or you connect to one of the internal addresses. I can't find what I'm missing. I have the VPN without going through the ACL interface. Because I can connect but not going anywhere I'm sure I missed something.

  framework for configuration below

  interface Vlan1

  nameif inside

  security-level 100

  10.1.1.1 IP address 255.255.255.0

  IP local pool xxxx 10.1.1.50 - 10.1.1.55 mask 255.255.255.0

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

  Crypto-map dynamic outside_dyn_map 20 set pfs

  Crypto-map dynamic outside_dyn_map 20 the value transform-set ESP-3DES-SHA

  PFS set 40 crypto dynamic-map outside_dyn_map

  Crypto-map dynamic outside_dyn_map 40 value transform-set ESP-3DES-SHA

  Crypto-map dynamic inside_dyn_map 20 set pfs

  Crypto-map dynamic inside_dyn_map 20 the value transform-set ESP-3DES-SHA

  map outside_map 65535-isakmp ipsec crypto dynamic outside_dyn_map

  outside_map interface card crypto outside

  map inside_map 65535-isakmp ipsec crypto dynamic inside_dyn_map

  inside crypto map inside_map interface

  crypto ISAKMP allow inside

  crypto ISAKMP allow outside

  crypto ISAKMP policy 10

  preshared authentication

  3des encryption

  sha hash

  Group 2

  life 86400

  global service-policy global_policy

  XXXXXXX strategy of Group internal

  attributes of the strategy group xxxxxxx

  banner value xxxxx Site Recovery

  WINS server no

  24.xxx.xxx.xx value of DNS server

  VPN-access-hour no

  VPN - connections 3

  VPN-idle-timeout 30

  VPN-session-timeout no

  VPN-filter no

  Protocol-tunnel-VPN IPSec

  Split-tunnel-policy tunnelall

  by default no

  disable secure authentication unit

  disable authentication of the user

  user-authentication-idle-timeout no

  disable the IP-phone-bypass

  disable the leap-bypass

  disable the NEM

  disable the NAC

  NAC-sq-period 300

  NAC-reval-period 36000

  NAC-by default-acl no

  the address value xxxxxx pools

  enable Smartcard-Removal-disconnect

  the firewall client no

  WebVPN

  url-entry functions

  Free VPN of CNA no

  No vpn-addr-assign aaa

  No dhcp vpn-addr-assign

  tunnel-group xxxx type ipsec-ra

  tunnel-group xxxx general attributes

  xxxx address pool

  Group Policy - by default-xxxx

  blountdr group of tunnel ipsec-attributes

  pre-shared-key *.

  Missing nat exemption for vpn clients. Add the following and you should be good to go.

  inside_nat0_outbound list of allowed ip extended access any 192.168.10.0 255.255.255.0

  NAT (inside) 0-list of access inside_nat0_outbound

• How to configure VPN remote access to use a specific Interface and the road

  I add a second external connection to an existing system on a 5510 ASA ASA V8.2 with 6.4 AMPS

  I added the new WAN using another interface (newwan).

  The intention is to bring more internet traffic on the new road/interface (newwan), but keep our existing VPN using the old interface (outside).

  I used the ASDM GUI to make changes and most of it works.

  That is to say. The default route goes via (newwan)

  Coming out of a VPN using a site to character the way previous (out) as they now have static routes to achieve this.

  The only problem is that remote incomming VPN access Anyconnect do not work.

  I put the default static route to use the new interface (newwan) and the default tunnel road be (outside), but that's the point is will not...

  I can either ping external IP address from an external location.

  It seems that the external interface doesn't send traffic to the - external interface (or at least that's where I think the problem lies). How can I force responses to remote VPN entering IPS unknown traffic to go back on the external interface?

  The only change I have to do to make it work again on the external interface is to make the default static route to use external interface. Calling all internet traffic to the (external connection) original

  Pointers appreciated.

  William

  William,

  As it is right now that you will not use the same interface you have road to terminate remote access unless you know their IP addresses by default.

  In one of the designs that I saw that we did something like that.

  (ISP cloud) - edge router - ASA.

  The edge router, you can make PAT within the interface for incoming traffic on port udp/500 and UDP/4500 (you may need to add exceptions to your L2L static) of the router. It's dirty, I would not say, it is recommended, but apparently it worked.

  On routers, this kind of situation is easily solved using VRF-lite with crypto.

  M.

• IP overlapping between VPN remote access and within the interface

  Hi all

  I tried to replace an ASA and configured vpn for remote access using cisco VPN client.

  Remote access users are not able to access within the network, but have no problem accessing the network through a VPN site-to site.

  One thing to note is that remote access VPN users are assigned an ip address of 10.X.3.1 - 10.X.3.200 mask 255.255.255.0. The inside interface is on 10.X.1.2 255.255.0.0.

  Remote access users will have no problem to access within the network if the pool of the vpn client is changed to 192.168.1.1 to 192.168.1.100.

  ASA errors

  6 January 7, 2012 16:25:08 302013 10.X.3.1 27724 3389 10.X.1.66 built of TCP connections incoming 20940 for outside:10.X.3.1/27724 (10.X.3.1/27724)(LOCAL\Cisco) at inside:10.X.1.66/3389 (10.X.1.66/3389) (Cisco)

  6 January 7, 2012 16:25:08 106015 10.X.1.66 3389 10.X.3.1 27724 Deny TCP 10.X.1.66/3389 to 10.X.3.1/27724 flags SYN ACK on dmz interface (no link)

  I understand that the overlap between access ip address range remote vpn network interface network and inside will cause routing problems, but why the syn - ack makes its appearance in the DMZ interface? The interface of the DMZ is on ip address 172.16.Y.1 255.255.255.0.

  I intend to reduce the interface 10.X.0.0 255.255.254.0 inside if it is in fact a routing problem due to the IP address that overlap, but I understand why the syn - ack comes from the dmz interface and the diagnosis of the problem is correct. I check with the customer and was informed that the existing design works on an another ASA with no such problems.

  I agree what you said and also tried, but it does not work.

  http://www.Cisco.com/en/us/products/ps6120/products_tech_note09186a00807e0aca.shtml#overlap

  Solution, that you already know

  Solution

  Always ensure that the IP addresses in the pool should be assigned to VPN, network clients internal head unit and the internal network to the VPN Client must be in different networks. You can assign the same major network with different subnets, but sometimes the routing problems.

  Thank you

  Ajay

• Cannot Ping across the VPN remote access

  Hello world

  I hope I posted this in the right place!

  I'm a bit new to Cisco IOS, so please forgive me if I ask a stupid question!

  We have a firewall of 515E PIX 6.3 (4) on which I used the VPN Wizard to set up a remote access VPN the Cisco VPN client on the external interface.

  When I connect to home on my laptop Windows XP Pro SP2 running Cisco VPN Client 4.0.5(C) I seem to be able to connect to most of the network resources (IE file shares, I can RDP into servers, etc.) but I can't seem to be able to ping anything : I just request times out.

  I'm sure it's something stupid I've done (or not done).

  I have attached my config and would be grateful if someone could take a look and point me in the right direction.

  Thanks in advance for your help,

  Peter.

  Hi Peter,.

  You must add a line to the inside_access_in access list:

  Enable

  conf t

  access-list inside_access_in allow icmp a whole

  output

  write members

  Kind regards

  Cathy