Cisco VPN :: PIX-525 Dual ISP / Internet Redundancy With IPSEC VPN
Oct 8, 2012
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).
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Jan 15, 2013
[URL]I ran across this on the cisco site and I wondering if it was possiable with two 2851's? The part that is most interesting to me is this part of the config (this looks like what allows the use of the y-cable)
redundancy
#
mode y-cable
how to have a redundant border router with a T1
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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?
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May 24, 2012
I need to configure a 4507 chassis with two SUP 7 installed. I havenot done SUP redundancy comnfiguration and i was owndering
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Sep 16, 2012
I have the following: 1 5520 ASA connected to the internet, 2 core switches, and several access switches.Aside from implementing RSTP, VRRP, hard code access and trunk ports, is there any other recommendation you would like to add.
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Aug 13, 2012
is this possible to configure ipsec site to site vpn with redundancy using 2 cisco router 881?
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Sep 18, 2011
I have problem with dual ISP + IPSEC on my cisco ASA5505 sec plus licence.Routing is working correct (connect to Internet from siteA is working trought 1st also second ISP) but IPSEC is working just trought the first ISP! It seemt that phase 1 and 2 of IPSEC is correct but packets are just encrypting but not decrypting.
I'm trying ping from siteA (PC - 10.4.1.66) to siteB (PC - 10.3.128.50)
config site A:
##########################################################################
ASA5505 Version 8.2(1)
interface Vlan1
nameif inside
security-level 100
ip address 10.4.1.65 255.255.255.248
!
interface Vlan2
[code]....
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Sep 5, 2011
I have two sites with identical asa 5505's and each has the dual wan/ISP links and are set for failover using sla monitor tracking. I would like to create a vpn between these two sites that stays active regardless of which ISP link is online. Do I simply make two crytpo map statements10 and a 20 inside each of the asa's to each of the other ASA's STATIC PUBLIC IP's? [code]
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May 13, 2011
I have a customer who is looking to add some redundancy to their internet connections. Currently we have an ASA 5510 for their firewall. I know that the Sonicwalls are capable of terminating multiple internet connections simultaneously for load balancing, redundancy, and for pushing different types of traffic out different connections. Traditionally the ASAs have not had that capability. But does anyone know if the newer revs (8.3 and I think 8.4 may be out?) will do that or anything similar? Not looking for a full BGP-style solution where the same address space is available via multiple links, but more just a solution where the internet for basic web browsing could fail over and load balance between two internet connections, each assigned to a different outside interface on the ASA.
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May 4, 2011
Two internet links from different SP using different routers an firewalls connected to a 6513. I need to use these two links as primary and secondary (the secondary will be used just if the primary fails) for just two specific machines and 6513 have to be responsible for jusing between primary and secondary link. The rest of the network have to use just the primary link.
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Oct 16, 2012
There are four figures(A,B,C,D) shown in attached diagram.my aim to achieve wan side failover, mean to say, if one ISP or Router goes down, the other should still be reachable.
Cisco 2960 = L2 Switch
Cisco 3560 = L3 Switch
Here I am discussing only two redundancy methods i.e Floating Static route and IP SLA. There are following questionnaires related to attached diagram given below
Figure A:
1. Floating static route (Yes or No)
2. IP SLA (Yes or No)
Figure B:
1. Floating static route (Yes or No)
2. IP SLA ( Yes or No)
Figure C:
1. Floating static route (Yes or No)
2. IP SLA ( Yes or No)
[code].....
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May 7, 2013
One of our customer , where there 2 6509 switch , one is Core_sw1 and other is Core_sw2 , catering about 32 Vlan , and HSRP in running for all Vlans , till here no problem , now there internet Router which having one Internet link , which connected and configured on Core_sw1 in a way that one interface of Core_sw1 is given Public IP and there is vlan 85 which internet vlan and vlan 85 ip are natted with that public IP with one simple static route given toward internet router , this is how internet is working ok.
Now i have configured vlan 85 in hsrp as all other are , how can give redundancy to vlan 85 user , that if Core_sw1 get down , internet traffic can get out through Core_sw2.using same internet router with single internet link .i am not talking of ISP redundancy , but Vlan 85 in Core_sw1 goes down , other Core_sw2 will server internet.
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Feb 19, 2012
I would like to make a design with 4 Nexus 5596UP. 2 of them equipped with Layer 3 Expansion Module so they can serve as core layer and the other 2 Nexus used as Layer 2 for aggregation server layer.The 2 Nexus in the core layer will run HSRP and will peer with ISP via BGP for Internet connection The 2 Nexus in the aggregation layer will be configured as layer 2 device and have FEX and switches connected to them.What I am ensure of is how the vpc and port-channel configuration should look like between the 4 nexus. What I was thinking is to run vpc between the 2 Nexus in the aggregation layer and between the 2 Nexus in the core layer. Than I was thinking of connecting each Nexus in the aggragtion layer to both Nexus in the core layer using port-channel and vice-versa.
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Dec 17, 2012
how to change our wireless setup. Currently, we have 2 Cisco AiroNet 1130 WAP's in the office that go directly into the 2 POE ports on our Cisco ASA 5500. These WAP's have 1 SSID and are using WEP for security. After demonstrating the flaws of WEP to my boss, he has agreed that we should use something more secure and I've suggested WPA. We want visitors to our office to be able to hop on our wireless but on a separate guest SSID with WEP.
I'd like the internal SSID to route to the ASA and take the default route to the internet (it will be our new fiber connection once it's installed in a couple weeks). The default route is whichever connection is working since our ASA 5500 will fail over when it detects an outage.
I'd like the guest SSID to route to the ASA and then go over our existing cable connection. This connection will be our backup once the fiber connection is installed. Since we won't be using it very often, but will be paying for it, I advised that we send all guest wireless traffic over this connection since 50/5 is plenty for guests.
The current SSID (which will be the internal SSID) has no VLAN. We do currently have a few VLANS on our network, one for voice (.42) and one for data (.100) and the default (.0). What device to I create the VLAN on (Cisco 5500?) and how to I setup the WAP? I need very basic instructions to start and I'm also trying to do this without causing downtime if possible.
I've attached a diagram of what it should look like. Red indicates our internal network and Blue indicates the guest network. I can send screenshots as well.
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Mar 29, 2012
I wanted to ask a question about the diagram I have included. We are bringing up 2 MPLS WAN connections and would like some specifics on the best design. We are using BGP to the providers. From there we have big questions. We can run BGP internal and are licensed to do so on the N5K's. The N5Ks are currently using HSRP for inside LAN clients as default gateway. We want to load balance and provide redundant routes using a dynamic approach. Should we use BGP internal utilizing the connections between the routers? Should we use HSRP on the routers? How best to get the routes to the N5K and should we be considering this?
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Feb 21, 2013
I run 2 RV042 V1 for home and office with Gateway to Gateway VPN connection with single WAN connection in use. Everything works like a charm!
I was even able to create VPN connection with 2 WAN connection on one Router and 1 WAN connection on another with Smart link failover and VPN Tunel Backup.
I got problem though when i tried more complex connection diagram. [URL]
So basically I now have 2 ISP connections on each point with Static IPs and I'd like VPN Connection to be alive for ALL 4 options automatically with failovers (smart links) And tunel backups but i'm not sure if that's ever possible with my equipment.
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Aug 11, 2011
I got Windows 7 Enterprise-32 bit which cannot run some old programs,games,etc.So i decided to install Windows XP professional, but there's a huge problem: The internet does not work when i change to XP, but when i change back to win 7 it works again. Should i call my internet provider?Unplugging,creating,disabling the internet does not work,also it's not the problem with firewall.
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Jan 19, 2013
I am running Windows XP and Linux Ubuntu on dual boot.When I open into XP I cannot establish an ADSL internet connection, but can by wireless.If I open into Ubuntu I can establish both ADSL and Wireless internet.In Windows I have checked my Realtek Card in Device Manager - says working O.K.. When I try to open internet by ADSL the message is " trying to assign IP address " then limited or no connectivity" - if I try "Repair" message cannot establish IP address.Clearly something is blocking my connection.
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May 31, 2012
I have a single 7204XVR Internet router with two active Internet connections. One connection is ISP1 (Primary) and 50MB, and one connection is ISP2 (Secondary) is 4.5MB. We have customers from all over the Midwest and East Coast. The customers that are on the East Coast are coming in through the slower ISP2 connection and are complaining of slowness of our applications. However, the customers in the Midwest are coming in from ISP1 connection and are completely satisfied. Unfortunately, I am not a BGP expert, and I am not sure how, if possible, to FORCE ALL customers to use the primary ISP1 connection in reaching our sites/applications.
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Dec 27, 2010
I am simply trying to configure fail over configuration in my 1812 router. I have done some configuration on my router but my configuration is not working as i want. My router does not goes to secondary route until i unplug the primary interface cable on my router. when i unplug the primary cable it goes to secondary route and then i plug back primary cable the router come back to primary link.so my configuration is working when my primary gateway down but it is not working when internet goes down from isp end. i have attached my running configuration.
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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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Jun 1, 2011
I am putting together a solution for a client. The client has an MPLS circuit and internet as a backup circuit. I understand that we can do WAN failover using ASA5510 appliance.Now, if i am adding dual ASA5510 active/standby mode, How do i automatically failover WAN circuits to standby firewall if both MPLS and Internet circuits are connecting to primary ASA5510. Should i connect MPLS circuit to ASA1 and Internet circuit to ASA2? Ideally, i want both circuits to connect to primary ASA5510 for automatic WAN failover. My concern is , if the primary ASA5510 fails which has WAN and Internet circuits connected , do i need to manually switch connection from primary to standy? The goal is to fully automate wan failover and asa failover .
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Feb 11, 2012
i have come across this solution to dual internet connections, c2950-i6k2l2q4-mz.121-22.EA14.bin is the IOS and the router is a 2950 Dual Wan model. I don't know alot about this stuff I'll admit, but it is on the default configuration with IP 192.168.27.7 255.255.255.0, gateway at 192.168.27.8. The hostname below is something I don't know exactly what it means but my guess is its the line at the command prompt with the name.
It has VLAN1 with fa0/1-24, gi0/1 - 2.
This is the script but I don't know why its not taking the commands as at ip sla monitor 1 I get invalid command error. What do the ! mean are they comments and not entered?
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Dec 22, 2011
I am having issue with a RV082 with firmware:
v4.1.0.02-tm (Sep 16 2011 18:40:48)
On setup 1 I have;Using 2 WAN, 1 from fiber 5mbps symetric fixed public IP and other is DSL private dynamic dhcp address 3mbps/900kbps
On setup 2 i have:Using 1 WAN, from fiber 5mbps symetric fixed public ip Both router have exact same firewall configuration, subnet and port forwarding and we have the seccont backup DSL coming in a few day for setup 2.on both setup, the RV082 is the main internet gateway/firewall for a set of server...
Setup 1 work perfectly and been online for 2 week (since install) without issue
Setup 2 worked for 2 day then had to reboot, then work for few days then need reboot, now it look like it need to be rebooted every day. the internet just stop working and a simple reboot does the trick... also, when that happen I can stil remote in server that have port forwarded in the router or connect to router management port, but internet on the server is down... I tried opendns and google dns on both WAN connection and still no luck.I have followed instruction on various support forum;
-more reliable dns server
-lower MTU
-failover vs load balance
-disabling SPI and DoS protection
at this point I'm about to swap both router to see if it not a defective hardware or disconnect DSL WAN on setup 1 to see if its more stable but the whole point of installing this router was for Internet redundancy which so far dosent work as expected.
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Dec 25, 2012
I just upgraded from RV-042 to RV-042G on 24.Dec.
My previous connections are : (1st) 100Mbps ISP connection, (2nd) 200Mbps ISP connection (fibre to home)
Before upgrade, my RV-042 worked very stable.
After using Migration Tools by exporting RV-042 current config and converted to V3 configuration, the converted configuration was imported to RV-042G.
In beginning, RV-042G woks fine after imported converted configuration file. Unfortunately, after around 1 hour of use, my iPad (through an Apple Airport Extreme Station) and wired PC could not browse internet.
But, port-forward to 3 IP-cam still be able to access by my iPhon4 through Carrier 3G connections.
After a reboot of RV-042G, internet connection comes back. But, after an hour of use, the same issue happened again.
RV-042G makes me fluctuated. I will fallback to RV-042 from now on and wait for any further firmware improvement from Cisco/Linksys.
My previous RV-042 and current RV-042G config:-
* WAN1 : 100Mbps ISP connection
* WAN2 : 1Gbips ISP connection ( 200Mbps max throughput)
* LAN1 : connected to Apple Airport Extreme
* LAN2 : connected to Linksys 16-port FastEthernet switch
* LAN3 : idle
* LAN4 : connected to an Intel i7 PC
* Dual WAN link mode with bandwidth management, all internet connection from PC will stick on WAN2
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Aug 4, 2012
I have a 5510 with me. I want to terminate two Internet links on that. The primary Internet Leased Line to access my DC network using Site-to-Site VPN, and the secondary ADSL connection to access my other location network via VPN and and for web browsing. How can I achieve these goals.
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Apr 12, 2012
We are trying to setup a router with two internet feeds both of them doing IPSec VPNs back to a single peer...one of these VPNs is for VOICE traffic and the other is for DATA traffic...we have a default route set out one Internet feed which is the primary feed used for outbound browsing and the data vpn. The only other routes on this router are two static routes for the destination private subnets at the remote end but pointing to each feeds respective default gateway...I would have thought this would work, but only the data vpn is coming up and the voice seems to stay down due to not having a proper route?
If I set a static route for the remote peer out the voice internet feed, then the data vpn would drop...should I apply a policy based route on each of the inside interfaces, voice and data, setting the ip default next hop to their respective default gateways?
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Mar 29, 2013
Region : UnitedStates
Model : TL-WDR4900
Hardware Version : Not Clear
Firmware Version :
ISP : Comcast
The internet connection works really well on the 2.4GHz connection and when wired. But when Im connected through the 5GHz network, I get no internet.
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Jun 7, 2011
I'm trying to set up a S2S VPN between two ASA5505 SP units running ASA Version 8.2(1). I've ordered additional ADSL2 lines to handle this traffic and I'm having troubles with the configuration for the additional PPPoE connection. Here is are extracts from my current config; First the interface vlans
!
interface Vlan1
nameif inside
security-level 100
ip address 192.168.1.1 255.255.255.0
[code]....
The result being that I can ping the OUTSIDE interface, but get no reply from the VPN interface. I've checked ADSL lines, they are up. The two PPPoE sessions are logged in and active. I can even see the ICMP packets hit the VPN interface, but there is no reply.
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Jan 20, 2012
We have deploy a Cisco ISR 2921 to connect two ISP for internet access, Link 1 is fix public IP, link 2 is xDSL.And we configure dual link load-balance, the configure just like the famous DOC "[URL]" name:"dual internet links NATing with PBR and IP SLA". Inside network to internet is ok, and traffic was load-balance, Dual link can be redundancy. But there has some issue we don't realize.Most people interesting how the inside traffic load-balance outside, but ignore the traffic from outside issue.
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May 29, 2012
I am having an issue when implementing an additional internet connection on our ASA 5510. The new connection is "TWCOutside". I was my understanding that static NAT would force our externally hosted servers (Email, PPTP VPN, and FTP) to continue to utilize the "ATTOutside" connection. Our remote site-to-site VPN traffic has two static routes configured to force it to continue to use the ATTOutside connection.When I switch the metric on the 0.0.0.0 0.0.0.0 98.103.148.145 route to 1, and change out default dynamic xlate to use "TWCOutside", it "mostly" works as expected. Email, the PPTP VPN server, and our remote site-to-site VPN server continue to use the ATTOutside connection as designed. Our end users begin using the new connection for thier internet browsing.
However, our FTP server, in the DMZ, completley loses outside access. It cannot ping to 8.8.8.8, or resolve DNS queries. The is a static NAT statement for this server, as it is using one of our dedicated public IP addresses. I need it to continue to do so for the next few weeks.Effectivley, we just want to give our end users internet browsing on the new TWC link, but leave everything else on the old ATT link for the time being. The only problem I am having is the DMZ connection. I am currently "rolled back", so no one is using the new connection until I figure this out. I can easily switch the metric and dynamic PAT back to using the TWC connection, but I need to have some things to try with the DMZ before doing so. [code]
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Jul 1, 2011
I need to know how to setup my ASA with dual wan links. 1 is 10/10 fiber, other will be a 50/5 Cable Wideband link. The 10/10 fiber is currnetly being used for VPN's and Internet, (about 20 point to point IPSEC vpn's currently).
I want to add the Wideband link and use the "Tunneled (Default gateway for VPN traffic)", feature for the current fiber link and the new Wideband link for any other internet traffice. I tried this however as soon as I set my fiber link to "Tunneled (Default gateway for VPN traffic), I lost all connectivity.
I also setup my "VPN" link with the "tunneled" option and my "INTERNET" link with a default route to the internet. This would only let me ping internet sites from the ASA device but not from client computers, also the VPN's would not come backup.
I have tried the sla setting with a DSL line for failover and that works good, i've since got rid of the DSL and want to utilize 2 wan links for different purposes/traffic.
ASA 5510, SSM-10 1GB RAM
ASA version 8.4(1)
ASDM Version 6.4(3)
Context Mode Single
FW Mode Routed
License Security Plus
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Jun 26, 2011
I have set up a remote access ipsec vpn on an asa 5520. I can connect, and ping internal ip addresses, however I cannot ping back out to the internet, and dns resolution does not work.
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