Cisco VPN :: Failover Be Done On ASA 5500
May 3, 2011
We have a customer requirement of providing secure connectivity from Remote Office to HQSame time to provide certain level of layer 3 redundancy via secondary link should the primary link fail We are looking at ASA5500 series firewall for both Remote office and HQ.Can this be done?
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Mar 4, 2012
The 5500 WLC would be the primary and 2500 WLC would be the secondary. The only need for the secondary would be in the event of failure of the primary, and support needs when doing maintenance such as code upgrades.
We would use the same version of code on each controller and apply the necessary amount of AP licenses on each. The controllers would have identical configurations and host multiple SSID's, including offering guest services. Does the 2500 support guest network services?
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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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Jan 23, 2012
How to successfully manage to configure ACS 5.1 to accept log in request from a 5500 WLC?
I've managed to get it configured following the follow link [URL], but when I try to log in to the WLC using my ACS credentials I just get the log in screen again. I've checked the ACS logs and it says my username has passed the authentication process and it matches all the rules I've set. The only thing I've noticed is my "Privilege Level" is only 1 but I'm not sure if thats correct for a HTTP log in.
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Jun 5, 2011
We have a WLC 5500 apliance, but i have a problem, the APs have a administrative IP in a diferent segment, only conected to WLC the AP have same segment of the management interface, the 5500 don´t have APmanager interface.How configurate the WLC to conected and administrate all AP with different segment IP
Product Version.................................. 6.0.182.0
chasis: AIR-CT5508-K9
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Jun 27, 2011
Due to lack of address space, I have to go to NAT for our wireless guest users.Are there any limitation with WLC/NGS when comes to NAT?I have four 5500 WLCs, should I put them in 1 mobility group, at 2 different locations?
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May 30, 2012
We have a single 4404 that was setup long before I arrived with Guest networks that timeout and other such tweaks. Is there a document somewhere that shows a way to migrate the old settings to a new 5508 that we are purchasing? By the time the 5508 arrives I will have a very small window to setup the unit before a new wing goes live. I need the new unit as we have reached our limit of licensed AP's on the old 4404. It seems like everyone keeps talking about an easy way but no one says how to do it.
I have never setup one of these units before from scratch so I don't know how long it will take.
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Feb 10, 2011
I have been trying to conect a Cisco VPN client through an ASA and it makes the connection but doesn't allow any traffic through. The ASA does have a site to site VPN attached to the outside interface.I suppose the first question is it possible to allow VPN client to connect through an ASA 5500 from the inside network when there are Site to Site VPN's already attached to the outside interfaces?If possible then what have I missed. I have tried adding NAT exempt for the traffic between the internal networks and "an IPSEC pass thru Inspect Map".
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Mar 18, 2013
I have a 3750X set up with a number of VLANs and have connected a WLC5500 to this. I've assigned the port on the switch to the correct VLAN, given the WLC a management address on that VLAN and it has the correct gateway. I can ping to this gateway from other devices, but not from the WLC and can't ping or browse to the management address of the WLC (I can browse to it when plugged directly into the SP).
When checking the switch arp table, it shows the IP entry of the WLC as INCOMPLETE yet show cdp nei detail shows the device on the correct IP and all the device details. I have changed the port on the switch, the port on the WLC, the cable and the GBIC, cleared the arp and rebooted all devices and it hasn't made any difference. On the switch, I tried assigning the burned-in MAC to that IP statically but it didn't work - does each port have an individual MAC?
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Nov 15, 2011
We have the ASA firewalls in our environment - two 5510's and one 5520.Our 5510's are currently used in our production environment and the 5520 is our firewall for pre-production and support personnel. My question is about the AnyConnect VPN licenses we have. Currently we have 100 seats for AnyConnect on our production ASA's, but we'd like to see if we can move half of these to the 5520 ASA?
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Feb 8, 2011
i have a query regarding the no. of isakmp policy priority creating..when i create a new policy in ASA 5500 firewall, i get the below error...i assume it will support only 20 nos, where as we can use between 1-65535.. can anyone from cisco confirm it...running version is 8.x & VPN Plus license.Policy limit reached. No more than 20 isakmp policies can be configured.”
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Aug 13, 2012
i have to open ports for vedio conferencing in my Firewall configuration ,
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May 11, 2011
we are looking forward to monitoring the cpu, environment variables and the memory of a wireless lan controller via snmp. but we are not able to find in the mibs the right oid to manage this.can the exact oid be given in order to monitor these three elements on a cisco WLC 5500 series.
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Jun 3, 2012
We have been deploying ASA 5500 series devices for longer than I've been around. We have always used a script from a tftp server that would use the "wr net" command to send the running-config to the tftp server for daily backups. The script was setup to automatically name these "hostname-mm/dd/yyyy" for each device. We cannot seem to get this working on devices running ASA 8.43. In fact I can't even get the "wr net" command to work from the ASA at all even though I have the tftp server defined correctly (note this is going over the "outside" interface so I always get the warning regarding using the interface with the lowest security level). I'm sure there is something out there that I have overlooked, however I have not been able to come across this. Have there been any changes in the setup, or functionality of the wr net command or the tftp configuration with ASA 8.43?
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Dec 15, 2011
I have an ASA 5500 series and am looking to set up the AnyConnect VPN. Looking at this guide everything seems fairly straightforward. However, on the inside private network DHCP is setup and I was wondering if it was possible to just use DHCP instead of providing a static address pool? I did not see any option to do this.
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Aug 2, 2012
I want to use ASA B as a forwarder between ASA A and ASA C so that intranet A is connected securely from intranet C, something likes: intranet A <-- ASA A --> internet <-- ASA B --> internet <-- ASA C --> intranet C because connections between A and B and between B and C are good, but connections between A and C are bad. I just completed the IPSec settings between A and B and between B and C, but how should I tell ASA A, B, and C to work like this?
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Aug 1, 2011
l need change a wlc 4400 to 5500, but l don´t know what l need back up, and how can I do to join the H Reap APs in the new 5500 WLC because all H Reap APs that l have, are not in the same city , and I understand if l want join AP in the new WLC l need to connect in the same network segment, is it rigth ?
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Aug 21, 2011
My problem includes little bit design issue.I have site2site vpn between customer and my cisco router.But the customer wants to add L2TP traffic in this site2site tunnel.I have no experince about L2TP tunneling.I have also ASA 5500 series which locates behind the Cisco router.ASA interfaces have not public IP.Question is that Can I use my ASA firewall for just L2TP tunelling?Every document says ASA use IPSEC over L2TP. But IPsec tunneling is already done by Cisco Router. Or should I have to do both tunnel in same network device? I mean ASA or Router?
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Aug 16, 2011
How much the CPU is impacted by SSL VPNs on Cisco ASA 5500's?I believe that the ASA offloads a lot of its encryption/decryption on a built in VPN accelerator rather than placing load on the main CPU. Is this correct?
According to the ASA 5520 specs - it can handle a throughput of up to 225Mbps of VPN traffic. Of course, it does not say whether this is SSL or IPSEC but I would like to understand what impact say 100Mbps of SSL VPN traffic would have on the main CPU.
We need this information to gauge whether an existing firewall has enough capacity to cope with existing load plus additional new SSL VPNs.
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Feb 28, 2013
My client has two ASA-5500 in failover (8.4.4.1).To create AnyConnectVPN, the package must be uploaded on both machines - uncomfortable, but it can be accepted. The REAL problem is that the profiles (.xml file) are not synchronized.When I make a change of any of the parameters, after failover switching I loos alle the change.
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Oct 9, 2012
I am thinking of upgrading the WCS to Cisco Prime NCS in our environment, but i read NCS is replaced by Prime infrastructure. Now I am confused if I should go for the NCS or Infrastructure. option for a smaller environment with 200APs and 4-5 WLCs(5500, 4400 and 2100) and future proof for the next 5 years. I heard WCS is going to be obsolete soon but didnt find any official announcement except for legacy licenses?
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Aug 18, 2011
Our client ( a webhost, they have a lot of servers ) has a an older Cisco Pix, everything works fine with the PIX. They have a Cisco ASA 5500 with ASA version 8.3 , to replace the PIX. Upon migrating the PIX config to the ASA we are running into issues with Dynamic NAT. The static NAT entries are working flawlessly (there is a lot of them), however when Dynamic is enabled for the remainging hosts, outside communication works then drops off. The remaining hosts need outside access for updates. We have access lists set up but I dont se ehow that could cause a problem when the original ACL's were working fine with the PIX, they have not been altered.
The NAT config may be wrong or cluttered, have a look at the full NAT config.
The static NAT addressing is the same, example 207.11.129.65 will equal 10.10.10.65
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Mar 12, 2013
I want to upgrade the WLC 5500 from 7.0.220.0 to 7.3.112.0, coul be any risk if i do the upgrade..?
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Jan 16, 2013
I have a Cisco 5500 Software Version 6.0.199.4. Today I've been able to succesfully add a few newly purchased 1242G APs to my WC so I know everything is setup properly. They got the proper DHCP info and I was up and running in a few minutes.
I'm now trying the same thing with a newly purchased Air-Lap1262N-a-KP
I can read the bootup because I'm attached to it on the console.I see that it gets the proper IP#
But then I keep getting a "failed to decode the discovery response" error.
[code]....
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Jun 14, 2011
I have two ASA 5510 with Security Plus license and Shared SSL VPN licensing enabled.
The problem is that the client get “Session could not be established: session limit of 25 reached” but ther is only 6 ssl vpn user connected with AnyConnect.The software on the firewall’s is 8.2(1)Is there any BUG in this software related to this problem?
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Oct 6, 2011
I've tried to piece this together with SSL Remote Access VPNS, Understanding PKI and the Cisco's ASA 5500 Series Chapter 73 Configuring Digital Certificates. Below is a basic config I use to create the CA and ID certs on ASAs. I use the ASA as the CA server. When I export the SSL trust point it doesn't show chaining from the CA. Since there is no chaining when I load the CA certificate in the Root Store I still an SSL Certificate error. Instead I have to load the SSL Trustpoint Certificate.
CREATE CA
crypto ca server
smtp from-address admin@Cisco.local
lifetime ca 3650
lifetime certificate 3650
lifetime crl 24
[code]....
I originally thought it was a problem with enrollment self in the trustpoint, but I cannot figure out the steps to complete enrollment terminal. I got to the steps of crypto ca enroll Identity_Certificate and displayed the certificate request. At that point the sh crypto ca trustpoint Identity_Certificate is pending enrollment. I can not find the command for the CA that allows trustpoint enrollment. If I try to crypto ca export Identity_Cetificate identity-certificateit says trustpoint not enrolled. Of course if I take the enrollment request and attempt to crypto ca import Identity_Certificate certificate it fails because it's not the cert.
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Mar 5, 2012
I have an ASA 5500 Firewall. I need to figure out how to log all events using Port 25 to determine if there are any rogue devices on our network. I was trying to figure out how to do this via the Real-Time Monitoring (filter) but have had no success.
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Oct 20, 2012
is it possible to restrict the Remote Access VPN to ASA based on the Source Public IP , if so how ?
here I am not talking about the VPN-Filter under group-policy . I Want to restrict the access from specified source IP ( Public IP)
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Nov 19, 2012
We have a WLC 5500 connected to a 2960 acting as core switch. there is a server attached to the switch , bearing all dhcp pools for lan and wireless users. Can the wlc or the switch be configured in such a way that the wireless users associating to the wlc get their ip addresses from the dhcp pool configured on the server. Can the configuration can be shared for such a setup.
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Jan 28, 2013
Any documentation or information pertaining to replacing an existing wireless network. I will be looking to replace a 4400 w/12APs with a 5500 w/12APs. The users typically utilize the WiFi network on a regular, so I am trying to figure out how to replace the existing hardware without interrupting the service.
What would be the best way of handling a situation as such? I am currently looking on the Cisco Doc. website, hoping to find something related to this.
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Jun 1, 2012
i have a existing wireless network setup in my office existing wlc in 4402 and LAPs are 1130 & 1242 all are working fine but we are now planning to use new 5500 series controllers for the same access points,i want to ask that how i can done this job with very minore downtime and users disconnectivity + zero error results??
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Jun 6, 2012
I have an issue with a Cisco ASA 5520. It seems to block some emails incoming from some recipients. The sender's mail server clearly reports my ASA as cause of the problem (see attached image). Unfortunately I have not the logs about that event and the time frame to close this issue is very narrow.
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May 23, 2012
We are facing a bug with our ASA 5500 series (version 8.5.26) and the Internet explorer when the users connect to ssl vpn and they are not able to connect to the network resources like their PCs and the Cisco port forwarder keep asking for its installation
We already updated the ASA version installed in the user's computers the Microsoft kill bit patch.
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