Cisco VPN :: Configuring Split-tunneling On ASA 5520
May 28, 2012
I have some troubles configuring split-tunneling on ASA 5520.Number of remote users establish ipsec connection with ASA 5520 (in central office) using ubuntu vpnc-client.Split-tunneling is in use, to allow remote users to surf Internet using their ISP.The goal is to remove the possibility to ssh/telnet servers inside corporate LAN for remote users. [code]
There is nat enabled on interface, but there is special statement in nat0 ACL for 192.168.100.0 subnetwork access-list INSIDE_LAN_nat0_outbound extended permit ip 192.168.0.0 255.255.255.0 192.168.100.0 255.255.255.0.The problem is that remote users can easely ssh and telnet servers in INSIDE_LAN network. Whatever i put in INSIDE_LAN_in ACL, remote users still have full access to this network. Restrictions in REMOTE_split ACL don't work either.
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May 10, 2011
We have an ASA with software version 8.2(1) and ASDM 6.2 to use the VPN. We configure the anyconnect client with split tunnels for our vendors to access internal server and have access to the other resources in the web simultaneously. Windows XP client works fine however, the Mac OS x can only access the internal resource but not the web.we need to restrict the client to access and use only specific IP and http port.have internal and external DNS that are separated by ASA5520s all VPN terminate at the DMZ with192.168.xx.0/24 IP pool?
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Jul 16, 2011
I just moved our vpn over to using LDAP/DAP instead of the previous RADIUS we were using before. First of all, the group policy split tunnel is setup for Tunnel Network list Below Network list has a group of networks named "split-tunnel" setup with all of our internal subnets in it. Which seems to be working fine, users are hitting internal networks no problem.Where the issue lies is surfing the web while they are connected to the VPN.I think I know what one of the the issues are, I'm just not sure how to get around it. I have a proxy server setup that all domain traffic goes through say 10.20.30.40. That is obviously on our internal subnet. Our remote users has a policy on their laptops set to where if they can see/get to the proxy server then it pushes all traffic through there, however if they can not, it goes straight to the internet. That way they can still surf the web when they aren't connected to the domain network.
With the new DAP vpn policies, it seems as though they are trying to go through the proxy but failing so all http traffic is getting blocked on their computer as I can still ping say google.com...just can't open the web page.In my SALES-VPN access lists there isn't any acl that allows any traffic to 10.20.30.40(proxy server) so there isn't any reason their laptop would think it could get to it correct?I can't put an access-list SALES-VPN extended deny ip any any log critical at the end of the acl list because then it doesn't show up as an option to apply to the DAP since the acls have to be either permit or deny, not a mix.Also, if I just create an ACL access-list DENY-VPN extended deny ip any any log critical and apply it to the DAP *after* the SALES-VPN ACLs thinking all traffic would flow down as in go through all the permit acls first, and then hit the deny acl after, it just blocks all traffic.It almost seems that some traffic that isn't specifically being permitted by the permit acls is still getting through which is obviously not wanted. However, if I try to rdp into a server that isn't specifically permitted in the SALES-VPN acls it doesn't work so I'm kind of at a loss..
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Aug 23, 2011
I'm using an ASA5510 for remote access IP Sec VPN clients and it is configured for split-tunneling. The client computers are running Cisco VPN client software. All of the client computers running Win 7 work perfect, but the client computers running Win XP Pro cannot browse the internet, they only connect to the inside network.
1) Does XP Pro support split tunneling when using the Cisco VPN client software?
2) Does the ASA require a special config to support split tunneling with Win XP clients?
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Mar 29, 2012
I am currently trying to configure an Easy VPN connection from an ASA 5505 to and ASA 5520. I have enabled split tunnelling and in the group policy defined the network to be tunneled but when I activate the VPN it tunnels everything from the host computer connected to the ASA 5505. I get no internet access. Have been trying to troubleshoot this for days.Hee are soe specifics, running version 8.2(5) on the 5505 and the 5520 and below is the local config on the 5505 for the Easy VPN:
vpnclient server **.***.***.**
vpnclient mode network-extension-mode
vpnclient nem-st-autoconnect
vpnclient vpngroup dbernstein-5505 password *****
vpnclient username dbernstein password *****
vpnclient ipsec-over-tcp port 10000
vpnclient enable
and the downloaded dynamic policy:
Current Server : 12.***.163.**
Primary DNS : ***.160.***.39
Default Domain : cisco.com
PFS Enabled : No
Secure Unit Authentication Enabled : No
User Authentication Enabled : No
Split Tunnel Networks : ***.160.***.0/255.255.255.0
Backup Servers : None
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Jul 25, 2011
my company has used Split Tunneling for all of our VPN uses, however we recently purchased 2 ASA5505s for use at various jobsites, and have been running into problems with Local Network Administrators blocking certain traffic that we need to operate. They allow full VPN connectivity to traverse their networks, so we are able to use our LAN Resources over the split tunnel no problem.
We have it set up as a Dynamic L2L Connection, and this ASA is operating flawlessly minus the traffic being blocked upstream by the network admin. Our VPN topolgy is Hub & Spoke. Below is excerpts from our config on how the VPN is set up: [code]
What we'd like to achieve is being able to pass ALL traffic (LAN & Internet) through the VPN tunnel, then be processed by the Hub ASA (192.168.9.1) on the other end. I am guessing crypto map + routing would have to be changed?
access-list to_hq extended permit ip 192.168.101.0 255.255.255.0 0.0.0.0 0.0.0.0route inside 0.0.0.0 0.0.0.0 192.168.9.1Disable NAT on Spoke. Is this how I would go about doing this??? We need ip address dhcp setroute so our ASA can find the other end and form the VPN tunnel, and I am not sure how this would affect things. [code]
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May 23, 2012
What is the best way to install a split tunneling on a network, I got Cisco ASA 5510 with Cisco vpn clients.
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Apr 2, 2012
I need to create a VPN and have split tunneling disabled, so that all traffic including internet traffic goes over the vpn back to the headquators and out that internet pipe or to the network. I will be using the Cisco VPN client software and connecting to a 2811 router running IOS ver 12.3(8r)T7. I am pretty new when it comes to these configurations
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Nov 5, 2012
I've an ASA 5505, running at ASA 8.2(2). I'm using ASDM 6.2(5).ASA is set up with Split Tunneling and it works perfectly.However, for a few users, I want all traffic, including Internet traffic, routed through the ASA.The spesific users IP address at internet should then be the same as ASA Outside address, not the client local address.The question is therefore:How to simple override the split tunneling at user level?Alternatively set up an "tunnel all" group policy for the specified users?
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Dec 29, 2011
My cisco router (2600XM) is connected with the core switch with the vlan 6, behind the core switch there are many vlans and a mac web server (also DNS and DHCP). I am using remote access VPN with split tunneling (i would like to keep it instead of Dynamic interface). I can connect to the VPN and ping the cisco router, the core switch and the web server (by using telnet from the router to the switch and then to the mac but i can't access directly from the VPN client) but from the web server i can't ping the VPN client.I tried many things such as, adding the 192.168.1.0 to the access list for the intersting traffic or allow the tcp port 8080 but i think my mistake is related to the routing and NAT but i can't figure it.
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May 1, 2013
I have a cisco 2821 router. I currently have it setup to accept vpn connections from a cisco client which uses the 172.16.4.0 subjet for vpn connections. I also have nat overload setup for my local lan of the router so my internal servers on the 172.16.3.0 subnet can reach the internet. Every thing works great for that setup.However I have tried several methods I found for split tunneling and they have weird problems with the nat overload in place. If I take away nat overload the split tunneling works. If I take away split tunneling the nat overload works. I can't seem to get them to work at the same time.Config is below. This is the vpn/nat overload config with no split tunnel.
Current configuration : 2236 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
[code]....
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Sep 27, 2012
I have a ASA 5510 configured for IPSec remote access VPN.It works nicely and can see the private LAN behind the ASA.My problem is that I have other networks connected to this ASA via site-to-site tunnels that I would like to open up to remote access.
I have added these networks to the split-tunneling ACL's and added NAT exemptions for those networks.This doesn't seem to work.
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Apr 11, 2012
(ASA5510, ASA version 8.2(3)) I have set up split tunneling for one of our suppliers. When testing the setup the local computer with the VPN Client connects to the dedicated services it has access to behind the ASA, and the local computer can ping any computer on the local LAN and it can also access the internet and webpages on the local network
But the supplier complaints that he cannot run a local Navision session on the remote computer while connected to the VPN tunnel. I am not able to run a test that mirrors this.
I have followed the descriptions in document ID: 70917 in setting up the split tunneling, and as far as I can see, the setup works. But is there any restrictions laid on the local computer running the VPN Client in what services on the local network it can connect to?
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May 6, 2013
I've set up a remote access group for Anyconnect on a 5510 running 8.4.5. Our company security policy prohibits split tunneling, but this particular location has no internal DNS (so I have to use a public DNS like google or something). How do I get this to work, I'm assuming I need to do a NAT exemption but I'm not sure how this would look, especially under 8.4.5.
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Feb 17, 2007
setup CE500-24TT switch Port FE2 router / ports FE1,3-24 desktop / Ports GE1-2 Switch ports - MAC filtering is NOT enabled
FE1 - Cisco PIX501
FE2-24 Desktops/Printers
G1 - Empty
G2 - 8 port Gig Switch
8 Port G Switch = SBS2008 / Win2003 with Citrix / Win2K8 Management Server - plus a couple of desktops for Gig to server accessIs it possible to configure a PIX 501 to allow internet access for a Cisco VPN Client 4.8 without Split tunneling.The idea would be to have all raffic traverse the tunnel, be routed out the local WAN link on the PIX and then have the reply be forwarded back to the client over the IPSec tunnel.
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Apr 28, 2012
I've just deployed a SRP527W that I've had lying around for a while.Everything on the unit runs as well as can be expected, however I have a requirement to run split tunneling for VPN users.
Currently the only route that the VPN client receives is a default route. I noticed that on site to site VPN's and GRE tunnels you can specify secured routes, however I can't find anything that relates to the VPN remote users. This can be done on IOS without a problem but would be nice for the SRP.
I'm running the latest firmware 1.01.26, so if I haven't overlooked something would this be likely for a future release?
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Feb 7, 2011
Is it possible to configure split tunneling for default Windows VPN Client and ASA 8.0? Everything works fine with Cisco VPN Client
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Jun 23, 2011
I have a remote VPN with split tunnelling enabled. Currently, users connected to this VPN browses internet with his/her internet connection. Now, my requirement is that a roaming user connecting to the vpn must use our company's internet connection for his browsing purposes. How can I do this?Equipment we are using: ASA 5510
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Dec 19, 2012
I run a cisco asa 5510 and I want to know how to configure the asa to let some of AAA users navigate through the remote gateway (with remote public ip).I've already configure ipsec, ssl group policy, and I know I can disable split tunneling. I do it but remote users (connected with ipsec vpn cisco client) could access remote LAN but when they try to navigate through internet, there's no ip connection.
Do I have to configure some NAT ? I've already configure some rules to let the vpn ip pool go to the internet.I just want my remote users to navigate on internet through the vpn tunnel and the remote gateway (the asa).Do I have to setup some proxy ?
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Jun 17, 2012
Trying to setup split tunneling over Site-to-Site (Gateway To Gateway) VPN between RV082 and Win 2008 server. Tunnel seems to be ok, I can ping/access by IP hosts from both ends. But I can't get split DNS to work. Here is the setup
10.10.100.2 is the DNS server for xyz.local zone. It is at remote network.
The tunnel and routing work properly. I can ping 10.10.100.2 either from RV082 (system management - diagnostics) or from hosts at local network.
Moreover, I can run nslookup on a host from RV082 side (local network), set 10.10.100.2 as server to be queried and test dns resolution. names of hosts from xyz.local are resolved correctly. But. If I use nslookup on host to query RV082 as a DNS server and query for a host from xyz.local it responds that xyz.local is nonexistent domain. The same result I get trying to resolve/ping same name on system management - diagnostics page. Resolution of names from xyz.local fails. But Internet names are resolved
just fine.
I've tried to reboot the router, connect/disconnect the tunnel, set Domain Name fields of split DNS configuration pagein different ways including fqdn of hosts from xyz.local No effect. Just the same situation.
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Jul 21, 2012
We have ASA 5520 acting as the VPN Server and Cisco 1941 router as EZVPN client. Since last few days client is not able to establish vpn connection. 1941 router is continuously generating the below log messages
001569: Jul 22 12:19:05.883 ABC: %CRYPTO-4-EZVPN_SA_LIMIT: EZVPN(VPNGROUP) Split tunnel attributes(51) greater than max allowed split attributes(50)
001574: Jul 22 12:19:07.835 ABC: %CRYPTO-6-EZVPN_CONNECTION_DOWN: (Client) User=vpn_user Group=VPNGROUP Client_public_addr=<client public ip> Server_public_addr=<server public ip>
004943: Jul 22 11:32:42.247 ABC: %IP_VFR-4-FRAG_TABLE_OVERFLOW: Dialer1: the fragment table has reached its maximum threshold 16
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Sep 13, 2011
I have two ASA 5510 with site-to-site VPN, I can forward all Internet traffic to the central(HQ) site, how do I setup split tunneling for access Campus LAN (192.168.2.0/24) from LAN2.
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Mar 16, 2013
Is it possible with ASAVPNSERVER 5520 and an EasyVPN 5505 Client to have the client do split tunnel to a single public IP address? Both devices are on 8.2(5) 33. Could you possible provide sample config for split tunnel?
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Dec 15, 2012
We have an IAS (Internet Authentication Server) to authenticate all our network devices. This server is integrated with our local AD server so that we can use our domain credentials to login into the netwoerk devices. i have successfully configured all our L2 & L3 switches with IAS but facing issue with ASA 5520. Below is the config i have applied on ASA. When i am testing the authentication with IAS server, i am getting "Authentication Successful" message.
aaa-server AAA protocol radius
aaa-server AAA host 10.91.38.70
key *****
[Code]....
Also when i am trying to telnet the Firewall, i am directly getting password promt. I should first get the username promt wherein i can enter my domain username.
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May 14, 2011
I am configuring new ASA 5520 with AIP module for our network with HA (2 boxes), would be the best practice to configure in order to protect web servers and email server.
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Jun 20, 2011
I present wish to develop a policy and template for QOS on our ASA 5520 release 8.0(2) we presently have wish to do server hosting in our network for other organization,which the they will be able to access their servers they have both public and private addresses. we do have our one servers also already in production all behind the ASA And therefore we wish to apply qos on the servers to be hosted and we wish to do this on the ASA. how to go about this to apply qos on the ASA?
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Jun 20, 2011
I have a SSL certificate from a third party that is showing under the Identity in ADSM, howerver the audit scan of the firewall shows that the SSL Certificate Signed with an unknown certification Authority. I have installed the Intermediate Primary and Secondary Certificate from the third party under the CA Certificate of the ADSM however when I verify the SSL certificate it still shows as self-signed. What other steps do I miss. I have attached some screenshots.
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Jan 13, 2013
To configure a dynamic NAT, PAT, or identity NAT rule, I need to perform the following steps:
Step 1 From the Configuration > Firewall > NAT Rules pane, choose Add > Add Dynamic NAT Rule.
The Add Dynamic NAT Rule dialog box appears. However, when I click on Add I don't get the option to Add Dynamic Nat Rule. To see the options I get please see attachment.
The following is a capture of the show version:
ciscoasa# show ver Cisco Adaptive Security Appliance Software Version 8.4(2) <system> Device Manager Version 6.4(1) Compiled on Wed 15-Jun-11 18:17 by builders System image file is "Unknown, monitor mode tftp booted image" Config file at boot was "start up-config"
ciscoasa up 16 mins 57 secs Hardware: ASA 5520, 1024 MB RAM, CPU Pentium II 1000 MHz Internal ATA Compact Flash, 256MB
BIOS Flash unknown @ 0x0, 0KB
0: Ext: GigabitEthernet0 : address is 00ab.a72f.0100, irq 0
1: Ext: GigabitEthernet1 : address is 00ab.a72f.0101, irq 0
2: Ext: GigabitEthernet2 : address is 0000.ab6d.9802, irq 0
[code]...
This platform has an ASA 5520 VPN Plus license. Serial Number: 123456789AB
Running Permanent Activation Key: 0x4a3ec071 0x0d86fbf6 0x7cb1bc48 0x8b48b8b0 0xf317c0b5
Configuration register is 0x0
Configuration has not been modified since last system restart.
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Jul 21, 2012
I configure the virtual MAC address for a interface on ASA 5520, will enter the following command on the active unit:
failover mac address Inside 0012.3456.789a 0023.4567.89ab
The active MAC address is of the same as the Inside's burned-in MAC address of the active unit.Similarly, the standby MAC address is of the same as the Inside's burned-in MAC address of the standby unit.Do I get the effect of failover mac address command?
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Dec 18, 2011
I have successfully been able to allow outbound access from inbound hosts on the appliance; however, I have only one outbound IP address and had to configure outbound access using static PAT. What I need to do is to configure access to certain inbound hosts from outside. What's wrong with my running config? Below are the commands that I believe need to be changed from the configuration. [code]
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Jul 27, 2010
I have two ASA 5520 with 4 Giga interfaces and 1 management interface.
I need to use 4 interfaces four data traffic
1- Inside
2- Outside
3- dmz-1
4- dmz-2
The remaining will be the management interface only.How can I configure the Statefull failover and Management?
1- I used the management0/0 for The stateful failover.
2- I used gig 0 for outside
3- I used gig 1 for inside
4- I used gig 2 for dmz-1
5- I divided the gig 3 to two sub interfaces
a- gig0/3.1 for dmz-2
b- gig0/3.2 for Management and I defined it as a management-only
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Sep 10, 2012
I have an ASA 5520 8.2(5) with ACS 5.1, I made the configutation of Authentication and is working well, now how I can configure the authorization and get into the privileged level 15 mode directly.
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Nov 1, 2011
I am new to Cisco firewalls. We are moving from a different vendor to Cisco ASA 5520s.I have two ASA 5520s running ASA 8.2(5). I am managing them with ASDM 6.4(5).I am trying to setup Active/Standby using the High Availability Wizard. I have interfaces on each device setup with just an IP address and subnet mask. Primary is 10.1.70.1/24 and secondary is 10.1.70.2/24. The interfaces are connected to a switch and these interfaces are the only nodes on this switch. When I run the Wizard on the primary, configure for Active/Standby, enter the peer IP of 10.1.70.2 and I get an error message saying that the peer test failed, followed by an error saying ASDM is temporarily unable to connect to the firewall.
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