Cisco Firewall :: VPN Concentrator On PIX515 DMZ
Feb 7, 2011
I'm planning connect VPN concentrator in our company to PIX515 DMZ interface.At the moment , VPN concentrator(used for remote access VPN for laptop users) is connected directly to core switch so as PIx515. Having VPN Concentrator connected directly to LAN is security risk .SO i want to connect VPN concentrator to DMZ of the Firewall(pix515).
We don't have any test environment and we are not allowed to have downtime of more than 10 minutes in production network ,I want to make sure my design and commands would work without problem .I've attached doigram of our curernt setup and new setup I'm planning to work on as well as commands . Does this design will work .Nat , routing everything .
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Jun 10, 2012
We have a wifi network for guests, that we route to internet through an old PIX515 Firewall. We recently tuned the timers to lower values in order to "save" on resources and publix address usage.
The timers we use are:
-timeout xlate 0:30:00
-timeout conn 0:30:00 half-closed 0:05:00 udp 0:02:00 icmp 0:00:02
Through verifying the new timers, we noticed at some xlate connections (TCP PAT) that are idle for ever!!In the connection table, I cannot find an idle connection for longer than 1h....
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Jun 14, 2012
I am unable to ping my computer (attached via crossover). I can ping from the PC, but not from the PIX515. I'm using ethernet 1, and I have its IP set at 192.168.1.2/24, but for what ever reason I am unable to contact the computer. I tried messing with the access list a little bit but nothing so far.
PIX515(config)# show run
: Saved
:
PIX Version 6.3(5)
interface ethernet0 auto shutdown
interface ethernet1 auto
nameif ethernet0 outside security0
[code]...
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Jun 12, 2012
I have PIX515 with version 7.0 installed, so can i install version 8.3 on it?and what will be the memory requirements?
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Dec 18, 2012
We're migrating as mentioned in the subject and this new format is quite a departure from previous iOS versions so I thought I'd post the configs of the PIX and the ASA and ask if someone is willing to compare them and verify that it is correct and should be basically plug and play. The xxx.xxx.xxx are outside IP addresses and the yyy.yyy.yyy are inside addresses. .
Existing PIX config
PIX Version 6.3(4)
interface ethernet0 100full
[Code]......
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Jul 4, 2011
I have a pix515 v6.3.3. Is it possible to configure dual ISP on two interfaces and have redundancy between them?
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Nov 14, 2011
I have one outside interface with global IP address 1.1.1.1 and two inside.Both inside interfaces restrict and non_restrict have private IP addresses.I tried to filter some URLs on PIX515 IOS 7.2, only on restrict interface but my filter does not work.I can access prohibited URL from restrict interface. What's wrong in my URL filtering?
Here is my config:
PIX Version 7.2(2)
!
hostname pixfirewall
enable password 8Ry2YjIyt7RRXU24 encrypted
names
[code]....
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Mar 29, 2011
I am using a Pix 515 with IOS 8.0(3).I have in my access list on the outside interface.......access-list outside_access_in extended permit icmp any 12.23.34.0 255.255.255.0 echo access-list outside_access_in extended permit icmp any 12.23.34.0 255.255.255.0 echo-reply.......in order to allow ping requests and ping replies into my inside network. This certainly works since I can ping the inside from outside and vice versa, but in the ASDM display of access rules, the hit count for these two lines is always zero. If I run 'show access-list', the hit count for these lines is non-zero.
Why doesn't the hit count show up in the ASDM gui display?Also, I have read that the PIX does not treat ICMP in the same way as TCP or UDP and there is no stateful behaviour towards ICMP. However, if I set up a continuous ping from outside to inside and then disable the above access list rule allowing echo requests towards the inside, the ping continues whereas I would expect it to stop.
In the config there is 'timeout icmp 00:00:02' if there is no stateful connection for ICMP, why is there a timeout value for it?
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Jan 7, 2011
I am having a spot of bother with a Cisco PIX515, I have posted the current running config below, now I am no cisco expert by any means although I can do basic stuff with them, now I am having trouble with traffic sent from the outside to address: 10.75.32.25 it just doesn't appear to be going anywhere.
Now this firewall is deep inside a private network, with an upstream firewall that we don't manage. I have spoken to the people that look after that firewall and they say they they have traffic routing to 10.75.32.21 and 10.75.32.25 and thats it (although there is a website that runs from the server 172.16.102.5 which (if my understanding is correct) gets traffic via 10.75.32.23. [code]
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Apr 18, 2013
We are setting up an old office building as an offsite data center. The network cosists on a PIX 501 firewall and a 2811 router. I am attempting to setup a GRE tunnel over IPsec back to the main office. The main office consists of a PIX515, a 2821 router, and a 2921 router.
There is also an ASA5510 in our main office that is used as our primary connection for all of our external services and as a GRE endpoint for our other offices. The PIX515 is used to connect our main office clients to the internet and we would like traffic between it and our offsite data center to go across it as well. The default route is to use the ASA. We used policy based routing on the 2821 and 2921 routers to direct the appropriate traffic to the PIX515. Right now I am not able to get the tunnel setup. It appears that the offsite datacenter is sending packets but is not receiving any when I issue the “show crypto ipsec sa” commands on both firewalls. I will show the output of that command below.
Main Office The external address 198.40.227.50. The loopback address 10.254.10.6 The tunnel address 10.2.60.1
Offsite Datacenter The external address 198.40.254.178 The loopback address 10.254.60.6 The tunnel address 10.2.60.2
The main office PIX515 Config :
PIX Version 7.2(2)
!
interface Ethernet0
mac-address 5475.d0ba.5012
nameif outside
security-level 0
ip address 198.40.227.50 255.255.255.240
[code]....
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Aug 15, 2012
Can a Cisco PIX 515E with an Unrestricted License (UR) be deployed as a VPN concentrator? For example, remote users having VPN clients installed on their desktops connect through the Internet and are authenticated by the PIX 515E at the main site.
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Apr 13, 2011
We have got site to site VPN configured between local site with PIX515 6.3(5) and remote site with ASA 5505 7.2(4) . Because of very unreliable internet connection in remote site , we have added new ISP link which we want to use as redundant link .i understand ASA 5505 can be configured with two ISP link with SLA monitor method for redundancy as per this document ,[URL]
my question is how do i set up this pix 515 to have redundant VPN tunnel with remote site (when primiary ISP link fails in remote site and secondary ISP links takes over ) . I was thinking of using PIX 515 with 2 peers in same crypto map used for that sepcific site to site vpn tunnel,not sure that is the right way or not though.But how would i configure ASA 5505 to use backup interface(where secondar isp router conects ) to particitae in Site to site Tunnel .
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Nov 2, 2011
EasyVPN PIX515 server and ASA5505 client?
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Sep 17, 2011
After we change the firewal from PIX515E to Fortigate311B, one notebook which installed Cisco PN client 5.0.7.440 in WIN7 64bits can not access VPN because the default gateway is not correct. For example the IP get from Ip pool is 172.28.22.10 but the default gateway IP is 172.28.22.1. ?
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Oct 13, 2012
Recently I changed our default gateway from a pair of PIX515 to ASA5510. Since I changed the gateway anyone connecting to our wireless VLAN/network who tries to access the Internet may or may not get a page load. If the page loads it is extremely slow and sometimes the browser page indicator will just spin like it is loading. It's not our access points, if attach an ethernet cable to my laptop and put my switchport in the wireless VLAN I experience the same problem. DNS resolves OK, ping responses are consistent with no drops and access to any internal resources are good. All other LAN VLANs/networks work just fine, it's just Internet access on the wireless VLAN. I see the correct traffic flow in the ASA packet capture. Anything in the ASA Packet inspection related to wireless networking that could be blocked? Is there a way to check for a routing loop possibly?
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Jun 16, 2011
I have a question about VPN Concentrator FTP Backup configuration to get logs on FTP server. I have configure FTP Backup with all details but I still do not see any logs on FTP server. Do you know what could be the issue? I have never used Concentrator and not sure what needs to be done to get in working condition. I am using VPN Concentrator 3015 series.
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May 28, 2011
I have been trying to setup a LAN-to-LAN VPN between two sites that are using a 3000 series CISCO Concentrator. After following the basic setups from the CISCO site, I am still unable to create a tunnel. At the moment I'm starting to believe it is how I have physically setup the network. Site 1 is using a Billion BiPAC 7404VNPX ADSL2+ Modem, Site 2 is using a Netgear DGN2000 ADSL2+ Modem, The VPN Concentrators are setup behind these devices with each firewall setup to allow the needed ports forwarded.
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Jan 13, 2013
My organization has an old 3005 that i need to wipe the config of. The problem is that i cant gain access to the device via the console port. Every time i try connecting using a terminal session, all i see is a blinking cursor. As a result, my question to the group is there another way to wipe the config on this device?
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Apr 14, 2011
Our VPN 3000 concentrator's admin password was changed by somebody so i reset the password by using straight through serial cable, now the problem is it allows me to login with admin through console but not through admin web interface or telnet. I have enabled telnet and http access but still no success. Concentrator is using internal database so no AAA server is configured.
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Aug 14, 2011
I have a client who saw there was a android version of the AnyConnect client and want me to go through and get their VPN 3000 Concentrator confingured to be able to connect in with it.
The Conncentrator is currently setup several groups of users and the base group is set up to all other products to connec tin via a pre shared key. It took alot research to get it configured to this point and all the searches i pull up are for a ASA.
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Jul 2, 2012
I need to configure a Cisco pix 515e as vpn concentrator. Now the network has 2 Cisco pix in fail over - May I add a new Cisco pix in parallel and redirect the vpn tunnel on it? How do I need to make the configuration in order to work?
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Apr 4, 2012
I have a VPN Concentrator 3000 with LAN-to-LAN DES-56 connections connected to it (Cisco PIX 506). Everything was working fine and then over the night something messed up on it. No settings were changed or anything.
First issue was anything using DHCP (getting IPs from the sites local PIX) couldn't be pinged or reach out through the Concentrator. It was only Thin Clients that didn't work. I could still ping the PIX, printers and desktop computers that were static set IPs. But this was happening at every site going through this Concentrator. The sites going through out MPLS network are fine.
I tried setting the Thin Clients to a static IP but still couldn't ping them.
I then decided to reboot the Concentrator, when it came back up all sites reconnected back to the Concentrator but now couldn't ping anything at the sites, not even the LAN IP of the PIX (or printers and desktops now). I power cycled a few of the sites PIXs but they still were not pingable even though the Concentrator showed they were connected.
I then decided to physical power cycle the Concentrator, it's back up and all sites are connected but none of the devices on the LAN side are reachable.
The Concentrator can ping the sites WAN IP but nothing on the LAN side going through and out the Concentrator. It can ping the LAN through the private interface (going back towards my LAN) just not going through the public interface (over the WAN).
The sessions show that Bytes are Rxing but no Bytes are Txing.
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Jun 13, 2011
I would like to pick the communities brains and get some opinions about VPN concentrators and different vendors.Now as far as I am aware and my research has taken me the Cisco VPN concentrator range has been discontinued and we need to look at the ASA range of devices for replacements.Working with smaller companies and ADSL solutions (dynamic IP assignment) it makes it challenging to establish a site to site VPN without dyndns and the cisco ASA range does not support dyndns VPN connections.Now the question I have or opinions I am looking for is:What I do like about Fortigate is that you have the ability to create virtual Firewalls. I am not looking for answers but rather real life experience with the different vendor products and opinions surrounding VPN concentrators.
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Aug 8, 2011
I have 3000 concentrator in 192.168.1.x/24 network (concentrator has static IP of 192.168.1.4/24 assigned to its private int). I can manage it thru HTTP from any PC in the same subnet, but connection failes while trying to connect from PC on different subnet (i.e. 10.1.1.x/24). Is there ACL in concentrator config which needs to be modified to allow management from different subnet?
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Nov 21, 2010
Our enterprise uses a VPN Concentrator 3000 for our VPN access. Is there a way to view a log history of what user connected to VPN and what IP address they were assigned? It would be for 2 days ago which was over the weekend.
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Mar 27, 2011
I've the following scenario VPN Concentrator is connected to a router which is connected to a router and at the edge Cisco 515E PIX is connected to the internet. The problem is that the normal VPN Dial-up connection (a utility of windows) are getting connected but Cisco VPN Client throws error 412. Here's what I've tried (Initially groups and user were created):
(1) Allowed port 10000 on PIX ( access-list from-outside-coming-in permit tcp any host <public ip> eq 10000) and checked IPSec over UDP on VPN Conc. under Mode Config tab. Also checked IPSec over TCP tab under tunneling panel at port 10000. Tried connecting through VPN Client but it threw error 412
(2) In the reference guide, I read that IPSec over NAT is allowed on ports ranging from 4000 something to 40000 something.
I tried 33333, both on PIX and VPN Conc. under Mode Config tab but still no use. Same error 412.
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Jul 17, 2012
Where did I need to go on the Concentrator to disable tcp 1723 and 10000? We don't require these to be open and our pen test shows these as being open.
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Nov 30, 2011
is it possible to do a site to site with a Cisco ISR 881W --> to a Cisco 3060 concentrator head?
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Sep 13, 2011
Client: CISCO VPN Client
VPN server: Cisco Concentrator 3020 OS v 4.7
I want to get away from configuring split tunneling for security reasons. With Split tunneling and I am able to specify to which subnets the clients have access to. I do it defining "Network Lists"
When I modify the group and select "tunnel everything" under "client config" tab, the users then can access all subnets in the LAN. When I select this option the "Split tunneling network list" is grayed out
End goal is to make all traffic go thru the tunnel but be able to resctrict access to speficic subnets.
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Jun 27, 2011
is it generally possible to configure a site to site VPN connection between Cisco VPN Concentrator 3000 and Cisco RV220W / RV120W?
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Jul 8, 2012
I have an old VPN 3000 Concentrator that I do not have any idea what is running on it. The previous network admin didn't leave a password for it, so I tried to reset the password. I was successful in doing so, but when I try to access it with the default of admin/admin via web browser, I still cannot access it. I am loathe to remove or power off this device without knowing what is on it.
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May 19, 2012
We have two 3000 vpn concentrators. Under both of their load balancing fields, Configuration - Load balancing , the checkbox for loadbalancing is enabled.However both have different priorities, one with 10 and other with 1. Does this mean both are actually loadbalancing. What does the priorities indicate here?If we replace the concentrators with ASA , how will this load balancing need to be configured on ASA & how will it work.
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Mar 29, 2011
I have an interesting problem. I've configured a site to site VPN connection between these two devices. I am using the CDMA card as the primary and only outside connection on the 1921. What happens is that by default the cellular connection is offline. When traffic is generated internally from that network to the concentrator side of this scenario the cellular connection goes online and builds the tunnel, no problem. However, I cannot initiate the tunnel from the concentrator side. I think what i need is a way to force the cellular connection to always be on, and if it fails to come back online.
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