Cisco VPN :: 5520 Remote VPN And Hair Pinning
Jan 27, 2013
I have a dmz interface on a ASA 5520 that is used for wireless internet and i would like the users to be able to vpn in however they can not because they are coming back through the same outside interface. Do i have to nat the VPN ip pool or just use some form of hairpin routing or nat. I am using 8.2.
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Sep 18, 2012
Any info on how to configure dynamic-pinning, instead of static pinning on a Nexus 2224 connected to a 7009?Can't seem to find anything on CCO!
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Jun 3, 2009
I wanted an ASA to do hairpin routing. Here is the situation. A client was running there internet through a partner's WAN. They do not have a layer3 switch/router, and the defautl gateway on there network was actually the the partner's equip. They recently purchased there own internet circuit and an ASA5510. I initially tried putting in the nat exception and permit same security interface and static route on the ASA so that traffic bound for the extranet segment would be routed back out the inside interface toward the gateway to the partner's WAN. Pings worked right away, however no applications would work: no web traffic, application traffic, anything. My only guess is that the ASA does not like this in relation to stateful traffic flow, and the fact that since the partner's gateway is on the same subnet, you end up with asymentric routing.
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Apr 30, 2013
I have an ASA 5510 8.2(5) in Site1 and a ASA 5505 8.2(1) Site2 they are setup with a site to site tunnel.Each site has VPN clients that connect and I would like to allow clients from both sides access to servers on the other side of the site-to-site tunnel.
I enabled same-security-traffic permit intra-interface I also added the remote networks to access-list that is doing the split tunneling. [code]
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May 25, 2012
I have an ASA 5520 with multiple site-to-site VPN's. A remote customer has changed their Public IP address and now the VPN has gone down. How can I easily change the peer IP of the remote site to the new one without have to put the pre-shared key in again as we don't know what it is and they don't manage their firewall.
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Nov 10, 2011
We have a Main ASA 5520 and two remote site ASA 5505's that connect to each other via S2S VPN tunnels. Currently they are doing split tunneling, so only local traffic goes over the tunnel. We have are local LAN (10.0.0.0/16) and our DMZ (10.3.0.0/24) network at the main site. The DMZ hosts our external sharepoint, but we have access to it internally The problem is site A (10.1.0.0/24) and site B (10.2.0.0/24) have no idea of it, and when attempting to go to the site, it fails. You can access it via the external site address, but that's the only way. Normally the external address is blocked when you are internal.What i'm stuck at is even when we had all traffic sent from Site A to our main hub, it still wouldn't find it. Would i have to make a separate vpn tunnel purely for that DMZ traffic?
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Dec 5, 2011
I have 2 dual ASA 5520 devices running VPN at two geographically different locations. What is the best way to do failover between the two remote locations?i.e. can Cisco GSS / Cisco CSM/ACE be used and if so how would this work.
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Jan 27, 2013
I have a small request. I have a setup where the internal users within the corporate network need to remote VPN into the VPN concentrator.
The setup is as below
inside
(202.x.x.x)VPN ASA 5520 ---------------- FW ------------- intenal network
----------------
outside
The problem is that the 10.0.0.0/8 internetl network establishes the connection via the outside interface. However, the return path is via the inside interface. But the vpn concentrator keeps showing next-hop not reachable for USP 500. Why does it show that when it has a route via the inside interface.
6|Jan 29 2013 13:44:38|110003: Routing failed to locate next hop for udp from NP Identity Ifc:202.x.x.x..29/62465 to outside:10.163..x.x/5892
Also, since we are trying to send traffic from outside to the inside interface, I tried to NAT the source ip i.e 202.x.x.x and left the source unaltered. But it still doesnt work.
I am wondering why is the ASA not routing via the inside interface and looks for the return traffic via the same outside interface the traffic entered in. The outside has a security-level of 0 and the isnide has a sec-level of 100.
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Jan 22, 2013
I am trying to configure Remote Access VPN in our Cicco ASA 5520 firewall through SSL VPN wizard. I tried to configure Anyconnect VPN client option, but after entering user/pass it gives error "An error was received from the secure gateway in response to the VPN negotiation request. Please contact your network administrator. The following message was received from the remote VPN device: No assigned address"
As looking online there is no easy step-by-step option for same. I want to provide Remote Access VPN to some of our user abroad who should have access to few server applications and no internet access.
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Mar 14, 2011
I am trying to build a remote vpn in ASA 5520 Software Version 8.3(1). I am using ASDM 6.3(1) for the configuration. I went through the SSL VPN wizard and did the configuration. I tried connecting to the ASA using anyconnect VPN and I could successfully connect the VPN. My home laptop takes an IP 192.168.60.21 (which I have defined in the wizard). Now my issue is, I can't access any office internal network from this laptop (none of the internal IP is ping ing even). Meanwhile, I could ping and rdp to this laptop(which is connectd by anyconnect VPN) from my office network. One thing I noticed is that when I give a traceroute to an internal IP from the laptop, the first hop goes to my home ISP router.
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Jan 9, 2012
I am having an issue with establishing L2L VPN with remote site. My side is cisco asa 5520 and other side is check point UTM-- tunnel is not up.just wnated to confirm on my sidde if the configuration is OK.al the parameters using are correct for both side. any issue with below conf ? default route is pointing to my next GW address is there additiona default is required for VPN ? to reach the remote LAN somthing like pointing to remote peer address.to give a brief idea front end device is router as GW wher in internet is terminated and other wan connections ASA is behind ther GW rtr and outside int of asa and lan interface of GW rtr is having public ip. LAN switch is connected to ASA
access-list insideinterface_nat0_outbound extended permit ip 192.168.36.0 255.255.255.0 10.34.12.0 255.255.254.0
access-list outsideinterface_cryptomap_40 extended permit ip 192.168.36.0 255.255.255.0 10.34.12.0 255.255.254.0
nat (insideinterface) 0 access-list insideinterface_nat0_outbound
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
[code]....
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Jan 13, 2012
I have a remote office that currently connects back to a Central data center via Site to Site VPN. I am bringing up a 2nd internet connection as a fall back in the Remote Office. How do I configure the Site to Site VPN to work correctly so that if the primary internet connection goes down, the site fails over to the secondary? On Remote the internet connections are from different providers so they have completely different blocks of public IPs.
Central
ASA 5520 8.0(4)
Gig 0/0 Public IP
Remote
ASA 5520 8.4(1)
Gig 0/0 Public IP
Gig 0/3 Public IP (2nd internet)
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Dec 13, 2011
Not sure if my subject is a good decription of the problem or not.
I have an ASA 5520 at my home office and a SonicWALL NSA2400 at my remote office. The remote office has dual internet connections and I wanted to create two seperate VPNs between the devices using each internet connection on the SonicWALL.
I know how to configure this on the SonicWALL, the problem is on the ASA 5520
OK Basic network config
Main Office
ASA Public IP 1.1.1.1
ASA Internal network 192.168.1.0 (VPN source)
Remote office
Public IP 1 2.2.2.2
Public IP 2 3.3.3.3
Iternal network 192.168.2.0 (VPN destination on ASA)
If I have a VPN from the main ASA to either one of the SonicWALL's public IPs everything works fine
If I create 2 VPN tounels from the main ASA, 1 to each public IP on the SonicWALL, the VPN shows as up but no traffic flows.
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Aug 6, 2012
I Have asa 5520 terminate the remote access VPN Connection,when successfully connect to my corporate Network and try to copy a file(30MB) from the share to my PC ,it takes around 2 Hours or it disconnect.what is the speed of the vpn client once y connected to the corporate over the Internet ?at my home i have 512 ADSL while at my corporate we have 155Mbps Internet speed.
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Mar 19, 2013
We have 2 5520 ASA's working in an active/standby function at our central site. The remote agencies have control of their ASA's or other devices able to create VPN tunnels back to the central site. When a new remote agency wants to connect to our central site we assign them a network range that is routable on the central sites network.We ask that the remote agency NAT into the addresses we provided them.This way we are able to route back to them. We assign the interesting traffic and then they we start communicating by way of the tunnel.
Since the central site can't control the traffic coming in on the site to site tunnel other than just defining the interesting traffic AND we aren't able to control the NAT on the remote end how can I put an access list on the central site ASA to allow only certain ports and IP's by way of access list? Ultimately, I'm trying to limit traffic on the central site coming inbound to only allow traffic I want. I tried applying a group policy to the lan2lan site to site tunnel, but it failed for some reason. It actually prevented all traffic. Can I apply a group policy to a site-to-site tunnel?
I'm struggling here a bit as I don't have control of the remote end. They can NAT whatever they want to an address in the range we assigned them. The tunnels interesting traffic is set to full ip to the central site's destination. The interesting traffic on the central site is set the same. However, on the central side...I want to limit that traffic to only certain ports by way of an acl. If it is possible to assign a site-to-site tunnel a group policy and filtering is done in that method, can
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Mar 7, 2011
Is there any documents that I can use to design an IPSEC remote access solution using 2 data centers . One data center is primary and other one is secondary. The VPN is terminated in ASA 5520. End users using cisco client.
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Sep 8, 2012
I have a site-to-site VPN configured between a 5520 at our data center, and a 1700 at a client's site for site-to-site connectivity. What I've noticed is, is that the VPN can only initiate from my Data Center, never from the client router. I can telnet into the router and start a telnet session sourced from the "inside" interface and it fails, yet I can see the NAT translations get created in the state table that should match the crypto-map. However, if I ping a host on the inside of the remote LAN from my workstation (behind the 5520) to bring the tunnel up, and run the exact same command on the client router once the tunnel is up, it works. Right now I have a continuous ping running from my workstation to keep the tunnel up, but obviously that's not the best solution
I had to modify this config to NAT the LAN addresses at the client to a non-overlapping subnet, so anything coming from 128.1.0.0/16 should be NAT'd to 192.168.105.[50-200]/24. I've also got two static NATs for inbound access from the data center and those seem to work fine.
Current configuration : 2787 bytes
!
! No configuration change since last restart
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
[code]...
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Jan 25, 2013
I have Cisco ASA 5520 / ASA Ver: 8.0(4) / ASDM Ver: 6.1(3). I have configured Remote Access VPN and everything seems to be fine. Like i have created Extended ACL and allowed for singe host with particlar port to be allowed.
After login with the Anyconnect client, i am restricted to access the single host configured, but not based on ports. i.e. i do not want user to RDP the server allowed, but only access the application based on the port that is allowed. But somehow it is not working.
how can i allow user to access a server with defined port only and not any other service/port access for the server.
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Oct 17, 2011
I have a site to site VPN between SiteA to SiteB which is working fine. SiteA has an ASA5520 and SiteB Pix501. The ASA5520 is running version 804 with split tunneling. Users connect to SiteA using remote access VPN. Is it possible to setup SiteA ASA5520 so that when users connect to SiteA they can access servers located on SiteB through the tunnel? I know i can setup the Pix501 for remote access VPN but it is located in another country and i don't want to take a chance just incase i lose connectivity.
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Oct 24, 2012
I have an ASA 5520 8.2(3) and allowing my remote client-to-site-vpn clients to access resources directly connected to my ASA on separate lower security interfaces (not the outside) besides just clients on my internal networks. Someone mentioned to me configuring 'VPN on a stick' however from what I've read this seems to be only applicable when it comes to split-tunneling back out the outside interface (could be off on that). Is this possible on other lower security interfaces as well, and if so what would a mock config that accomplishes that look like (acl's, nat, etc)? Also, if I want internal users to be able to connect to these remote clients once they are active, are there any nat statements necessary (such as nonatting them) or are the vpn clients just seen as internal clients from the rest of the internal network's standpoint by default?
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Apr 18, 2013
I have a need to Remote Desktop connect to company’s employees for support then they are abroad and using Cisco AnyConnect client.Cisco AnyConnect client connection works fine, clients can reach company’s inside network without problems, but I cannot make revers connection, I cannot Remote Desktop connect or ping VPN clients from companies inside network. I cannot ping clients from ASA too.I am using ASA 5520, Cisco Adaptive Security Appliance Software Version 8.4(3) Device Manager Version 6.4(7), and Cisco AnyConnect VPN Client 2.2.0133. Protocol Encryption- AnyConnect-Parent SSL – Tunnel DTLS-RC4 RC4 AES 128.
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Oct 29, 2012
I have a problem on a Cisco ASA5520 version 8.2(5). A customer has set up a syslog to keep tracks of tcp sessions made by vpn users. On the syslog we filter %ASA-6-302013 and %ASA-6-302014 log messages, respectively: Built inbound TCP connection and Teardown TCP connection. When the connection is made by a vpn user, at the end of the log line you see the vpn username which should be the same in both the messages for the same connection. I have verified that when a user, let's say UserA, disconnects from the vpn, their tcp sessions are not properly closed; if another user, let's say UserB, establish a VPN immeditaely after and gets the same IP address previously assigned to UserA, the log sessions are recored with UserA in the %ASA-6-302013 message and UserB in the %ASA-6-302014 message. I presume this is due to the fact the tcp sessions are not tore down when the first user disconnects and it looks like a bug to me but I didn't find it referenced anywhere. Is there a way to have all tcp session tore down when a user disconnects the VPN connection?
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Apr 29, 2013
We have dns server(only Internal IP) inside our network, right now we have configured Remote Access VPN using Public IP and we connect it using the same Public IP. I need to use FQDN instead using Public IP. What is the configuration for this.
-Device : ASA 5520
-Configuration Type : IPSec
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Jun 19, 2011
my local site has Cisco 2811 router connecting locally to ASA 5520. Remote site A has Draytek Vigor2950. I have working vpn between local subnet 10.0.0.0/24 and remote site A 10.100.6.0/24. I have remote sites B (10.100.7.0/24) and C (10.100.8.0/24). I would like to route traffic from local site to remote sites B and C via the local-to-remote A vpn. On Draytek routers B and C, I have added to subnet 10.0.0.0/24 to the remote network profile list. On local router, I route traffic for subnets 10.100.7.x and 10.100.8.x to the ASA. On ASA I have added these subnets to the profile for local-to-remoteA vpn.But the vpn will not establish when I attempt to ping from local to remote B or C.
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Apr 14, 2012
I am using asa 5520 and asa 5540 for remote access vpn connections. Is it possible to do active monitoring of my vpn connections so that there would be alerts for vpn tunnels that fail to establish due to other reasons other than user authentication?
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Mar 21, 2012
I have configured vpn filtering on all my l2l vpns. I have restricted access from remote to local resources only to specified ports. It works perfectly.But I want to have also full access from local to remote networks (but still preserve restricted access from remote to local). As I now VPN Filter works bi-directional with a single ACL. So is there some way to open all traffic from local to remote and still restrict remote to local traffic? ASA 5520 8.4(3)
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Apr 16, 2012
i have cisco ASA5520 and i have a remote access vpn .I want to configure logging for this remote access vpn.
i want the time user connected .how log it is connected .If any error while connecting ?
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Jul 16, 2012
We have two sites, Site-A with a ASA 5520 (Remote Access IPSEC VPN server) at one end and a new ASA 5515-X at Site-B. Users at Site-B are unable to establish a VPN connection to Site-A via Cisco VPN client from behind the new ASA 5515-X. They see the following error:
"Secure VPN Connection terminated locally by the client.
Reason 412: The remote peer is no longer responding.
They are able to access the same from home or elsewhere so I believe there is nothing wrong with Site-A ASA vpn config which we have been using for a while now. The new 5515-X (version 8.6) has a very basic config with all outbound traffic allowed. I'm pasting the config below. Do I need to enable/allow anything for it to work?
CISCOASA# sh run: Saved:ASA Version 8.4(3)!hostname CISCOASAenable password xxxxxxxxxxxx encryptedpasswd xxxxxxxxxxxxxx encryptednames!interface Ethernet0/0 nameif outside security-level 0 ip address x.x.x.x 255.255.255.248!interface Ethernet0/1 nameif backup security-level 0 ip address
[Code]....
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Jun 16, 2012
how many remote user connect using Cisco VPN client on Cisco Firewall ASA5520-BUN-K9? Already i read VPN Client FAQ But their have no information about user limitation.
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Aug 19, 2012
we wish to implement IPSec remote access vpn with the condition that employees should be able connect to this vpn only from company issued laptops and not from any other computers. I assume using client side certs is one of the ways to do it but I couldn't find any doc that was really useful. Cisco's documentation seems quite obscure. We are on 8.1 (5520)
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Jun 7, 2011
We have a pair of 5510s and a pair of 5520s, each in Active/Standby mode. I'd like to upgrade the ASDM and ASA software on these, but am finding no documentation that advises on how this can be done without physical access to the devices. It so happens I am on site, but we will be deploying these throughout our network and I'd like to be able to perform this type of maintenance without travelling to each site. We utilize CSM and ASDM to manage these for the most part, but are certainly capable of configuring via CLI.
The issue may be my lack understanding of the ASA fundamentals, but I don't really get how the software can be copied to the individual ASAs of the pair so they may be reloaded and upgraded without outage. With a remote SSH connection to the pair, I'm only copying the software to the Active ASA, correct? Or is there a way to get the software to each disk individually from the single SSH connection? I'm not quite sure how to manage the Standby ASA without consoling into it... If I can indeed remotely get the software to each ASA (copying to different disks?? i.e. disk0: and disk1:?), then I also run into an issue updating the boot statement for each of them individually, though to resolve that I suppose I could just remove the old software, but that seems like bad practice before confirming the new software is ok.If there is a simpler way of deploying new code via ASDM or CSM, I'm certainly open to that.
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Feb 3, 2013
I'm working with AnyConnect for the first time (my prior experience is with IPSec client) and I have multiple remote users who connect to a 5520 via AnyConnect client; they need to print to each others' shared printers but currently have no connectivity between each other.
Can I configure the 'intra-interface' command to enable connectivity between remote clients, or is there more that needs to be done to enable this, presuming that it can be done at all?
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Oct 29, 2011
We have a site-site and remote vpn configured in same interface in ASA 5520 ( software version 8.3 ). When Remote vpn users try to connect to computers located on the distant end of site-site VPN, their request failed. I tried No-Nat between remote vpn private IP to the remote site private IP, also stated the same in Split tunneling. I cant find even the tracert, ping also timed out.
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