Cisco VPN :: ASA5510 7.2 - GRE Over IPsec / ASA And NAT-T?
Nov 20, 2011
I want to establish GRE over IPsec tunnel between four branch offices and head office. At branch offices, I have 1841 router with Advanced Security software. At head office, I have a ASA5510 7.2 as frontend with one public IP addres and 1841 router behind it in private address space. Since ASA is not supporting GRE tunnels, can ASA be endpoint for GRE over IPsec? If not, can ASA pass this tunnel to the 1841 router behind it, so 1841 would be logical tunnel endpoint? What should I pay attention? Should both ASA and every 1841 support NAT-T, or just ASA?
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Jul 25, 2011
I have set up a IPsec L2L VPN between a ASA5510 and a ASA5505 which is working just fine.Every now and then our management station receives the following syslog message: Session disconnected. Session Type: IPsec, Duration: 2h:23m:23s, Bytes xmt: 3283338, Bytes rcv: 8637607, Reason: Phase 2 Error.I have already searched the forum for this message to exclude all the possible reasons for this message:
- the complete crypto maps are the same on both ends (lifetime, psk, pfs etc)
- the ACL's used in the crypto maps are exactly the opposite of each other
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Mar 19, 2012
I have a 5510 running 8.42 code with multiple site to site tunnels coming into it. Sites vary from ASA 5505's, 1841 and 1921 routers which all work perfectly. That being said I think the ASA side is good. I have an 837 running 12.4 code, Cisco IOS Software, C837 Software (C837-K9O3SY6-M), Version 12.4(5b), I'm trying to configure it for site to site VPN back to the ASA. When I ping from the E0 interface I get the following debug output and nothing else. I've made a lot of changes to no avail in getting closer to a successful configuration. [code]
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Mar 18, 2012
i want to create Remote IP Sec VPN on Cisco ASA5510.Problem is this 5510ASA is behind another 5520ASA and it dont have any public IP address on any of 5510 interface.if i do static NAT of ASA 5510 Private IP on internet facing 5520 IP Public POOL, then will VPN work on 5510 ASA? and what ports need to forward on 5520 for 5510 to become IPSEC VPN head end
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Jan 3, 2013
I have the need to configure a backup VPN, I have remote branches with cisco 800 routers that make a VPN to an ASA5510 in the main offices, but as a DRP I want to have a backup VPN to another site. I dont know if it is a failover configuration or backup VPN, how to start investigating.
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May 20, 2013
I have an ASA5510 configuration that I'd like to add to.In this configuration there is a site to site IPSEC VPN tunnel to a remote location.It is tunneling a particular subnet for me and everything is working.In the remote subnet, there is an ASA 5525-x connected on the outside interface. Let's say for argument's sake, the outside IP is 210.0.0.1.On the Inside interface, i've configured 10.240.32.0/24 network.The only static route I have configured on the 5510 is the default gateway that goes to the ISP.I assumed that I have to add: route Outside 10.240.32.0 255.255.255.0 210.0.0.1 1.I did this, but i'm not able to reach the destination 10.240.32.0/24 network. I can't see anything hitting the 5525-x and the only thing I see on the 5510 is the building outbound ICMP and the teardown for the ICMP.
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Feb 29, 2012
I configured my cisco client with the info from the vpn wizard and get the following error :
error in the cisco vpn client when enabling the log : Invalid SPI size (log) + reason 412 the remote peer is no longer responding (application) message I see via the ASDM-IDM : Built inbound UDP connection for interface WAN
I'll explain briefly what I'm trying to do here :
* Remote vpn with windows users having cisco clients
* Group authentication and in the asa5510 LOCAL authentication
My WAN interface contains a public ip/29 I also defined a LAN interface with security level 100 in 10.0.60.0 255.255.252.0 range the vpn dhcp range I want to attribute to vpn users : 10.0.69.0/24
Basically I want users to initiate the vpn tunnel to the public IP and be able only to access the LAN range with the 10.0.60.0/22 range
ASA Version 8.2(5)
!
hostname xxxx
domain-name xxxx
[Code].....
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Apr 26, 2012
I have an asa 5510 that has many(17)ipsec vpn site tunnels on it. One of the tunnels, one running to a c1900isr at the other end, is experiencing 400 to 500ms latency through it. It does appear to be the tunnel only because there is no latency to the internet. I cleared the tunnel group out and readded it to no effect. isp says everything fine. any other known causes for this
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Oct 19, 2011
I've a question about VPN IPSEC on ASA5510
In the LAN network , we use a DHCP on a Windows2003Server. Is it Possible to Configure the remote VPN Clients to use this DCHPserver throughout the VPN IPSEC and Assigned Automatically IP when the connection is done?
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May 13, 2013
How to configure CISCO ASA 5510 for multiple IPsec tunnels?On other side is CISCO 2801.
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May 2, 2013
We have many VPN tunnels back to our corporate office. All of these tunnels are very slow (same with our client VPN's). Our main firewall device at the corporate office is an ASA5510. We have a 100 Mb/sec Metro Ethernet internet connection here. We do not allow split-tunneling.
Our remote sites vary. We have DSL connections, cable internet connections, and other types of broadband that vary in speeds from 5 to 100 Mb/sec (up and down). The remote sites mostly have PIX 501's, but we have an ASA 5505 in one of the locations.
To take an example. On one of our remote sites that has a 100 Mb/sec connection, if I ping device to device, I'm getting ping times of about 50ms. And I'm pinging back through another 100 Mb/sec connection. If I get on a computer down there and run a speed test, I'm showing down speeds of about 1.5 Mb/sec... nowhere near 100. Some of that could be due to the lack of split tunneling, but I also suspect this could be an MTU issue.
Right now, all my MTU's are just set to the default 1500. Perhaps this is too high. I used this site to check my max: [URL]
I did a few tests from behind several of my firewalls. I pinged from a machine on one side of the tunnel to the firewall on the other end. I'm assuming the max MTU I come up with is the max MTU for the firewall I'm behind while pinging, right? The max amounts I came up with for some of my devices were as follows: Corporate ASA 5510 > 1272 (if you add the 28 byte packet header that would make it 1300) Remote PIX 501 > 1416 (if you add the 28 byte packet header that would make it 1444) Remote ASA 5505 > 1418 (if you add the 28 byte packet header that would make it 1446)
So, do I just need to set my MTU values to the appropriate amounts? I have tried changing the value, but I don't see any change in speed/performance. But I also don't know if I need to reboot the firewalls after changing the MTU. I know with Catalyst switches, you have to reload. But I didn't see any messages about needing to reboot on the ASA's/PIX's.
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Nov 15, 2011
I want to configure a remote VPN for our clients on Cisco ASA 5510 using Dyn DNS as I dont have static IP address.
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Feb 21, 2013
I recently upgraded our head end ASA5510 at our datacenter from 8.2.1 to 8.4.5. The ASDM was also upgraded from 6.2.1 to 7.1.(1)52. Under the old code, a remote ASA5505 connected via Easy VPN Remote showed 1 IPsec tunnel. However, after the upgrade, it shows 42 sessions. It would seem to me that each split tunnel network defined in the Easy VPN profile is being counted as a tunnel. Is it possible that I may have something misconfigured now that the code is upgraded?
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Nov 24, 2011
I've configured a VPN IPSEC on my ASA5510. It Assigned IP/NETMASK/Gateway via a DHCP Server on the LAN.The problem is that when a client is connected to the VPN , it takes the right IP and NETMASK. ( 192.168.1.109 / 255.255.255.0) but the Default Gateway is wrong ( 192.168.1.1). It should be the default Gateway of my LAN router ( 192.168.1.229).
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Aug 8, 2011
i am just installing my ASA 5510 and i want to configure it for remote access VPN IPSEC client.i use this doc : URl,When i start the connexion, the Client uses the first address of the pool and not the dedicated address ?,i have forget something ?
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May 5, 2010
i have configure a remote access ipsec vpn in asa5510 and it is working fine when i configure local dhcp address pool assignment. but not working in dhcp-server
below is my configuration
tunnel-group test type remote-accesstunnel-group test general-attributes default-group-policy test dhcp-server 10.1.1.200tunnel-group test ipsec-attributes pre-shared-key *
group-policy test internalgroup-policy test attributes dhcp-network-scope 192.168.135.0 ipsec-udp enable ipsec-udp-port 10000
---snapshot Ping test to DHCP-Server 10.1.1.200----
ciscoasa# ping 10.1.1.200Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 10.1.1.200, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
the DHCP server is working when i assign ip address to the LAN network.
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Dec 4, 2012
Question on ASA VPN tunnels. I have one ASA 5510 in our corporate office, I have two subnets in our corporate office that are configured in the ASA in a Object group. I have a site to site IPSEC tunnel already up and that has been working. I am trying to set up another site to site IPSEC tunnel to a different location that will need to be setup to access the same two subnets. I'm not sure if this can be setup or not, I think I had a problem with setting up two tunnels that were trying to connect to the same subnet but that was between the same two ASA's. Anyways the new tunnel to a new site is not coming up and I want to make sure it is not the subnet issue. The current working tunnel is between two ASA 5510's, the new tunnel we are trying to build is between the ASA and a Sonicwall firewall.
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Jun 6, 2012
ASA 5510 have two model Bun-K9 and Sec-Bun-K9 from the datasheet find out difference Port related and Redundancy. My questions is : Have any major difference for Security service between two model ?
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Apr 29, 2013
I tried any type of combination and just couldn't make it works. Only PPTP works well. Whether Apple iOS IPSec VPN is supported or not?
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Mar 14, 2011
We have to use scp on all of our network devices. It worked quite well on our routers and switches but I can't seem to get it to work for the firewalls and IPS. I enabled scp on my ASA5510 using the command "ssh scopy enable". I also ensured that a rsa key was generated and that ssh ver 2 was enabled. But I can't seem to locate the commands to actually have my firewall either copy it's configuration to a server or reach out to a server to pull down a file. We are using IOS 8.2(1).
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Mar 22, 2011
I have a customer who wants to prioritze rdp traffic throgh the firewall.I know that its port 3389, but outgoing traffic is a random port number.Any smart way to catch this traffic and get it in the LLQ ?
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Jul 9, 2012
how to configure IPSEC VPN, but unsuccessfully.At my office are two uplinks - LAN and Backup, both are connected to ASA5510 (with static IP) and I would like to create ipsec to data center where I have another ASA5510 with one uplink.
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Apr 27, 2011
I haven't come across this before and have been scratching my head about it for the last few hours and need a second (or third or fourth!) pair of eyes here.
I have an ASA5510 at the network edge, an inside interface of 10.1.0.x, a dmz interface of 192.168.1.x
[code]...
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Nov 28, 2010
It's my understanding the ASA5510 will do BGP but does it can handle multi hop -BGP?
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Jan 19, 2012
Currently we are using a Windows 2003 Server with VPN Sever Role for VPN Access and my users use the built in VPN connection with Windows client. In the past few weeks we upgraded our router/firewall to CISCO ASA5510.
My understanding is that I get 1 or 2 VPN licenses with the Cisco ASA5510 and I would like to configure to test Cisco VPN access. My first question…when I configure the Cisco ASA5510 for VPN (Clientless or via Client), do I need to point the Cisco to my Windows 2003 Server with VPN role on it or the Cisco ASA5510 handles the VPN connection and access?
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May 8, 2012
I would like to implement a zone based firewall on my ASA5510. Is ZBF possible on ASA? or is it strictly for routers? I know we've implementd ZBF using Sonicwall firewalls before. A little confused here as to why my ASA doesnt have the right commands.Maybe my version of ASA software is too old? It's 8.2 if i remember right.
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Jul 3, 2012
i exported config file from asa5505. i changed this file and i imported in my asa5510. can you tell me that config file allright
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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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Mar 18, 2013
I currently have an ASA 5510, and a ASA 5505 both configured with VPN and TLS licensing.I would like to migrate to a pair of ASA 5525-X, would it be possible to transfer the licensing or would I need to re-purchase?
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Sep 13, 2012
we have ASA 5510 which we need to upgrade from 8.0(3) to 8.2.5. can we directly switch to 8.2.5 from 8.0(3) , if not what all versions we need to go from.
What all point needs to check before that following is show flash output.
97 14635008
Jan 01 2003 14:12:16 asa803-k8.bin 98 4096
May 14 2008 21:22:10 tmp 2 4096
Apr 20 2008 02:21:46 log 6 4096
Apr 20 2008 02:22:16 crypto_archive 99 6851212
[Code] .....
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Apr 17, 2013
Although this is not a common issue, we have experienced occasions where our internet utilization has been maxed out (slowing everyone else down). Utilizing some features in the ASA, such as Top Usage Stats, along with PRTG monitoring, have always tracked the culprit down to being a single user -- be it someone downloading movies to a portable device, or downloading ISO's. (And for some strange reason it seems to always be a wireless user.) We are using an ASA 5510 for our firewall, and I was wondering if its possible to prevent a single client from consuming a disproportionally large percentage of our internet bandwidth? If the ASA 5510 doesn't have the ability to do this on it's own, are there any recommendations for add-on solutions?
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Sep 18, 2011
My device has 3 interfaces configured: inside, outside, DMZ. Right now I can access the DMZ from the Internet and I can access the DMZ from the LAN using an exempt nat statement. I am having a few issues setting up DMZ > LAN access however. The servers running on the DMZ need to send information to my LAN such as syslog traffic for example. Will DMZ traffic be NATed or should this somehow be excluded? Bascially all LAN devices should get to the DMZ devices by their actual IP and vice versa. Are there any special statements I need to add to the ASA such as nat or ACLs to make this work? My LAN is 10.10.6.0/24 and DMZ is 192.168.254.0/24.
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Oct 20, 2011
I have a ASA 5510 with asa8.4(2) and asdm6.4(5)205. Have a new basic config, nothing special at this time. I just cannot seem to get from the inside to the outside. From the outside interface I can ping, so I have a good Internet connection. [code]
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