Cisco VPN :: Remote Site Redundancy IPSEC Between 2911 And ASA
Nov 11, 2012
We already have IPSEC VPN connectivity established between sites but would like to introduce some resilience/redundancy at a remote site.
Site A has an ASA with one internet circuit.
Site B has a Cisco 2911 with one internet circuit and we have established site-to-site IPSEC VPN connectivity between the 2911 and the ASA.
Prior to getting the new internet circuit, Site B had a Cisco 877 with an ADSL line which are still available but aren’t currently in use.
The internet circuit at Site B has dropped a few times recently so we would like to make use of the ADSL circuit (and potentially the 877 router too) as a backup.
We thought about running HSRP between the 877 and 2911 routers at Site B and, in the event of a failure of the router or internet circuit, traffic would failover to the 877 and ADSL.
However, how would Site A detect the failure? Can we simply rely on Dead Peer Detection and list the public IP address of the internet circuit at Site B first with the public IP address used on the ADSL line second in the list on the ASA? What would happen in a failover scenario and, just as important, when service was restored – I’m not sure DPD would handle that aspect correctly?
I’ve read briefly elsewhere that GRE might be best to use in this scenario – but I can’t use GRE on the ASA. I have an L3 switch behind the ASA which I may be able to make use of? But I don’t want to disrupt the existing IPSEC VPN connectivity already established between the ASA and the 2911. Can I keep IPSEC between the ASA and 2911 but then run GRE between the L3 switch and the 2911? If so, how would this best be achieved? And how could I also introduce the 877 and ADSL line into things to achieve the neccessary redundancy?
I have two Cisco routers - 2911 in HQ and RV180 in branch office. Because in HQ LAN network I have some development servers, to which guys from branch office need to have acces, I decided to setup VPN site-to-site between HQ and branch office. Everything went quite smoothly, on both devices I see, that ipsec connection is established. Unfortunately I am not able to ping resources from one network to other one and vice versa. Below is the configuration of 2911 router (I skipped som unimportant (imho) configuration directives) :
I have a Cisco 2911 router and a Cisco RV 120W router and i would like to establish a VPN tunnel between theese two. I have defined the settings on the Cisco RV 120W router and i just want the Cisco 2911 to follow those. setting up a connection with Cisco IOS.
The scenario where a Site to Site VPN tunnel has been established between Site A and Site B. Lan on Site A can ping Lan on Site B. My problem is a Printer behind Site B needs to be accessed by using the WAN IP address of Site A. Also i could not ping the remote lan or printer from the router.
Below are my configure on the Cisco 877 in site A.
Building configuration... Current configuration : 5425 bytes ! ! Last configuration change at 15:09:21 PCTime Fri Jun 15 2012 by admin01 ! version 12.4 no service pad
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
In my Cisco PIX-515E Version 6.3(5), I have a IPSec VPN tunnel and also to the same firewall home users connect through VPN client. I am unable to find a solution that allows my home users to connect to office network and again access the remote network through the IPSec tunnel.
I have a HQ with two branches, the HQ contains one 3900 ISR router with two WAN connections, the two branche sites each one contains one 2900 ISR wth two WAN connections for each router.
i need to establish a site to site vpn with GRE between the HQ and the two branches, so is it possible to
1-for HQ: i need to configure site to site VPN to the branches using the both WAN connections on the HQ Router like if one site to site vpn is down the other one will be on and works as High Availabilty.
2- same for the branch offices i want use both wan connections with HA in site to site vpn to the HQ.
3-using GRE for routing after configuring IPSEC VPN.
I have two ASA 5510 configured with site to site tunnel. on the both side of the ASA 5510 i have configured Redundancy links (terminated 2 ISP links) which is working fine.Now i need to configure Site to site vpn for the backup link. how to configure the site to site redundancy on both locations.
we are in the planning phase for a network upgrade. We have two C2960 Switches connected via one (L2) Etherchannel (4x1 Gbit/s) which works very well. In the next phase we would like to upgrade our router to an 2911 series which has 3 gb interfaces. and indeed we would like to create an etherchannel as well. our plan is to use 2 of the 2911 to connect to the first 2960 switch and the one left to the other 2960. i think we will achieve some redundancy with this config.
I have a Cisco 2911 router configured with a couple of VPN tunnels . The issue that I am having is that I cannot access the servers (WEB,EMIL) thru the tunnel . After looking around found out that adding a route-map to my static NAT rule will fix the issue . Once I do that I am able to access the serves thru the VPN but my local machines lose internet access .So I have to delete the access list The issue seems to be with the Access list 110 permit ip [code]
[code] Site-to-site VPNs in place between Site A and Site B and between each site to the DC. Site A and Site B have Cisco 2911 routers, there are ASA’s at the DC. The existing Site-to-site VPNs carry data and voice traffic between the sites (though voice and data is on separate VLANs in separate subnets)
ISP1 currently used for the existing circuits at Sites A and B but we have experienced issues with them recently which has disrupted service. So new circuits are to be installed at each site with ISP2. (See basic diagram attached which shows current set-up with intention to get new circuits via ISP2 installed)
We have 3 ports on our Cisco 2911 routers with 2 ports already in use for the existing connections (1 for the LAN and 1 for the WAN connection to ISP1) Can we simply use the 3rd port for the connection to ISP2 or would it be far more advisable to use a 2nd router (for redundancy, etc)
Would it be feasible to have a set-up where we have e.g. voice traffic go over a site-to-site VPN via ISP1 and data traffic go via site-to-site VPN via ISP2 but each can take over from the other in the event of a failure?
I have a requirement to create a site to site vpn tunnel on ASA 5510 from a remote site to my HO, ihave already other site-to-site tunnels are up and running on the ASA.The issue is my remote site has got the network address which falls in one of the subnet used in HO(192.168.10.0/24).My requirement is only My remote site need to accees couple of my servers in HO which is in 192.168.200.0/24 subnet.
Is there a way to set up a Site-to-site VPN between RV042 & Cisco 2911? I "googled" this and obtained a document, but it is not regarding Cisco 2911: [URL]
Routers are needed to setup it successfully. I have tried on both routers several configuration steps, no success...
I am attempting to establish a Site To Site VPN between our SA540 and 2911 routers and somewhere I have a misconfiguration that eludes me. I suspect maybe in the 2911 Transform Set? Here is the output from the SA540. [code]
Im trying to configure a IPsec site-to-site between Cisco 2911 and Cisco RV 120W routers and im having some trouble with it. Hoping some could shine some light on this matter. Posting my running config on 2911 and also the config of the Cisco RV 120W (.jpg)
I have a remote office with a dual WAN router (2911) in front of an ASA (5510). Our main office currently has an ipsec site to site vpn to that remote office ASA. The router has two ISPs. ISP-A is the wan link used for the site to site and has provided us with a /28 public address space which we use on the ASA outside interface for the site to site. Now we are in the process of getting a second ISP which will also provide a /28 or /29 public address space. I would like to use that second ISP for backing up the site to site in case ISP-A link goes down. I think I have the IP SLA config worked out. My question involves NAT. On the router I would like to configure a static nat that only takes place if ISP-A goes down. In other words, if everything is working fine, then the router does not nat the ASA outside address, but if the ISP-A link goes down, then the router will NAT the ASA outside address to one of ISP-B provided public addresses.
We have ordered a pair of Cisco ASA5520 (ASA5520-BUN-K9).Now there is a requirement to terminate site-to-site VPN from remote site. Do we need VPN plus licence for this and how much it cost?
cisco products and am struggling getting a VPN going between an ASA 5505 and 5510. I have a VPN created (using the VPN wizward on both) and it shows the VPN is up, but I can't ping the remote site (from either side).
I have 3x site-to-site vpn connections setup on my Cisco 2911 router which is based at Head Office. They all connect OK but there appears to be some ports blocked.Access any applications using HTTPS Our Proxy Agent uses port 8280 - When the internal address is used, it doesn't work. When the public address is used, it works. Printers are unable to use scan to email - Port 25.I'm confident that nothing is being restricted at the remote sites as all of these functions worked on our old Head Office router.All i want to do is allow ANY traffic to and from Head Office and all the VPN sites. I'm fairly new to this type of router having made the jump from small business equipment.
i have 2 router asa 5505 with base license i wanna make site to site vpn connection and remote site using vpn client to connect first i have hdsl router with 5 public ip i wanna try it by giving 1 public ip to each router and try the vpn but nothing work?
Got a situation where Location_A got TWO ISP and Location_B got One ISP.Using ISP 1 link Location_A establishes IPSEC Tunnel with Location_B .How do I establish redundancy from Location_A point of view, if ISP1 is down then ISP2 should establish IPSEC tunnel with Location_B.At Location_A both ISP links terminates on the cisco PIX-525 and all (VPN) crypto configuration is on PIX 525 running version PIX Version 7.2(4)7At Location_B VPN is terminated on a PIX Version 6.3(3).
I am trying to set up a site to site ipsec connection. AT site A, I have Vlan's 652-10.55.216.0/24, Vlan653 -10.55.217.0/24, Vlan 654-10.55.217.0/24 and Vlan655-10.55.219.0/24 and at site B, Vlan650-10.55.214.0/24 and Vlan651-10.55.215.0/24.The problem is that I am unable to get any associations when i do a "sh crypto isakmp sa"/"sh crypto ipsec sa" on either router at each site.I am also unable to ping by pluging in a laptop into the site at each site. Laptop at site A is set to access vlan 655 and laptop at site B is set to acess vlan 651. I can ping all the devices from one end to the other.I have turned on debug crypto isakmp, debug crypto ipsec, debug crypto ipsec errors but dont get anything at all as output.I have attached the sh run for each router Cisco (1941/K9) and switch (Catalyst 3750) at each site.
I have an ASA 5525 and need to configure site to site ipsec vpn to 3 peers. I currently have an existing /28 public address from my ISP that is used by other services.Is there a way to use this existing ip range to configure IPSEC tunnels to 3 peers ?
With à customer we have à site to site VPN connection. In this tunnel there is one subnet routed with a 3des-sha encryption / hash. Now the want to add a new subnet in this tunnel, but with a AES-128 / MD5 encryption / hash. Is it correct if we make a new crypto map with a higher seq. number?
im drawing a blank trying to setup a site to site connection with a 5505 ASA using ipsec and isakmp.i have the pre shared key as well as the external address of the other end of the tunnel but do not remember what the commands are to setup the crypto map and isakmp.
We have a scenario where the Cisco ASA 5505 will be one end of a site-to-site VPN. The same ASA 5505 also allows Client VPN connection. The question is around IP pooling. If I assign a pool of IP's (192.168.1.20 - 192.168.1.30) for Client VPN connections - do I need to be sure that those same IP's are not used on the other side of site-to-site VPN ?
There could be PC's/Servers running 192.168.1.0/24 on the other side of site-to-site VPN. Would this cause an address conflict ?
I have configured Ipsec vpn tunnel beetween two routers (from site A to site B) over untrusted internet connection by cisco 3825 routers and i can successfully access both of this routers. But now i need to access internet on site B router sitting on site A router. So that if i run traceroute from A site machine then the gateway by which internet passing through shows the ip of site B.
The Architecture of our both site routers :
Site A 10.1.11.0-----Router A 172.18.12.1-----VPN tunnel----Router B 172.18.12.2-----Site B 10.4.11.0
/////Create IKE policy crypto isakmp policy 1 encr aes authentication pre-share group 2 [Code] .....
How can I NAT the same set of four hosts and give them access to two different networks across an IPSEC site-to-site VPN tunnel? I'm using an ASA5520 running 8.04.
We have configured a site to site tunnel from our ASA to another organizations Cisco 3030. It appears to have just one way initiation. We can do a ping to a device on the remote site and it will ping just fine. however, when the tunnel needs to be initiated from the remote site, it will not work until we have initiated the tunnel and then everything works.
I continue to see Error processing payload: Payload ID: 1 errors on the ASDM logs.It appears that all the configuration is in place because we can in fact establish the IPSec tunnel unidirectional. And once established, traffic can flow bidirectional.
