Cisco Firewall :: ASA 5545X OSPF Failover?
Jan 21, 2013
I have two switches and two ASA in active/standby as connected below. These devices are running OSPF 128 in one area (Area 0).I'm pinging from both laptops to each other both ways. The ASA has the latest "8.6.1-5" image. I've configured the firewall failover polltime to 1s with holdtime of 4s. Pings both ways OK.
<LAPTOP> IP:10.112.132.10/24
| [ACCESS PORT VLAN10]
/ <SWITCH> [SVI VLAN10: IP:10.112.132.1/24]
/ [SVI VLAN20: IP:10.113.128.11/28]
.12 / [ACCESS PORT VLAN20] .13
[code]....
I fail the primary firewall (ASA-ACTIVE). I get a 4 seconds ping loss which is expected (holdtime) however after 10 seconds of pings I get another outage which last anywhere between 5 and 15 seconds. I've done a fair amount of debugging and I did notice that the second outage occurs with the OSPF neighbor goes from "loading" to "full". This doesn't make any sense because the routing table is fully populated when going to “full”.
When perfoming a manual fail back (type failover active on ASA-ACTIVE), pings goes on for approximately 10seconds and then an outage between 5 to 15 seconds. Agsin this outage occurs when OSPF neighbor goes from "loading" to "full".I've tried debugging on the switches and found nothing.
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Jun 29, 2012
I am getting this error on my PIX 535 with 8.0.4 code. The error is Error : OSPF/RIP cannot be enabled on failover interface, I am getting this error while trying to enable RIP on the firewall. The context is single mode and failover is enabled. When I am disabling the failover the Firewall is accepting the RIP configurations.
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Nov 15, 2012
Do you know how to configure PAT on Cisco ASA 5545x?
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Feb 11, 2013
Due to increase of demands on our ASA cluster, we need to upgrade to a new cluster of 5545x. Our current config contains a lot of S2S & NAT
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Mar 2, 2013
I have two Internet connections which are connected to two ISR 2951s. Also I have two ASAs 5545-Xs, which I want to use in Active/Active failover mode with multicontext. The question is: how can I configure ASAs to perform ISP load-balancing as well?
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Nov 21, 2012
Do you know how to create a static nat from outside to inside and using services, this is a firewall 5545x
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Apr 1, 2008
I currently have a set of firewalls in active standby configuration running an ospf process injecting a default route into the rest of my network.I noticed when i was testing the failover that the asa's do not actually pass the route tables on failover, thus forcing the need to wait for routes to converge and for the default route to be advertised back into the network. This of course is not acceptable.
Is there a way around this or do I have to setup static default routes on every device in my network. I am trying to avoid setting up default routes on all of the devices because due to the setup of my network I have equal cost links configured in the event of hardware or link failure. So the devices then see an advertised default route from multiple paths.
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May 28, 2013
Have a 1921 that has 3 eth connections (1 LAN, and 2 WAN) - I have 2 seperate OSPF processes (2 areas) on the WAN Ints - both upstream WAN's are sending defaults back to the 1921, and the 1921 is sending it's LAN range to them.
I have ip ospf cost 150 set on the "failover" WAN connection interface (Both on the 1921 and upstream), but the 1921 is preferring the default route from the "failover"?
The default routes are both being received by the 1921, but it's preferring the "failover" Int with the ip ospf cost 150 configured?
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Feb 7, 2013
I have two ospf processes running on a single 3570 edge router that has a dedicated transport circuit back to our network core. We are adding an additional "transport" only circuit into a new location that is also apart of the second ospf process backbone which will connect back to our core. There will also be a 3750 for this new circuit termination. Currently we are only redistributing ospf process 2 into ospf process 1 (1 = core backbone).
#router ospf 1
#redistribute ospf 2 subnet
We have no need to have ospf process 1 redistributed into the process 2 tables. That being said, when we add an additional transport ciruit, or path back to our core backbone, will this configuration present any issues with the redistribution process and failover.
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Sep 22, 2011
I have 2 ASBR routers, AGFR01RTR03 and AGFR02RTR03, performing OSPF to OSPF redistribution in both ways for the same ***. They also do summarization for our private addressing scheme. It is all working just fine for that part (neighbors, summarization, redistribution).
AGDC01RTR01 --- AGDC02RTR01 (OSPF 1000 ABRs)
| |
| |
AGFR01RTR03 --- AGFR02RTR03 (OSPF 1000 / 53 ASBRs)
Let's focus on AGDC01RTR01 with a specific entry here (IP subnet is fake) :
Routing entry for 1.1.1.0/25
Known via "ospf 1000", distance 110, metric 300, type inter area
Last update from 10.2.244.76 on GigabitEthernet5/1, 1d03h ago
Routing Descriptor Blocks:
* 10.2.244.76, from 10.2.1.249, 1d03h ago, via GigabitEthernet5/1
Route metric is 300, traffic share count is 1
[code]...
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Mar 14, 2011
Currently the OSPF network consist of 2 segment route via static route.One is AREA 0 and another AREA 10.Both network are seperate entity, only static route to route between 2 networks.But the static route do not provide the dynamically and flexibility, I plan to run routing between 2 networks via VLAN160 and VLAN162.
I still want to manitnace it was 2 different OSPFrouting domain.Can I run OSPF with differrent OSPF porcess ID?
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Aug 12, 2011
I have 10 different segments in ASA 5520, so i created 10 VLAN in ASA & made the inside interface as Trunk that connects with core switch. Now i need to run OSPF in the ASA.
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Sep 26, 2012
I am trying to configure my ASA 5545 firewall in area 0 but when I do so, the neighbor relationship never establishes. A debug on OSPF gives only one response: [code] Why the ASA is ignoring the input packets?
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Feb 19, 2012
I have a Cisco ASA 5505 in our office. We are currently using Interface 0 for outside and 1 for inside. We only have 1 Vlan in our environment. We have two three switches behind the firewall. Today the uplink to Interface 1, to the firewall, on the switch went bad. I want to setup a second inside interface on the firewall and configure it as failover incase this happens again. I want to attach it to the other switch. Can I do this? If so, what do I need to do? would it only be a passive/standby interface?
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Feb 3, 2011
We have ASA5510 at our perimeter and is running OSPF on inside interface.
1. Iam planning to add DMZ and adding th DMZ subnet also to OSPF process for advertising the DMZ dynanmically into network.
Any security risks?
2. Near future we will add BGP and a perimeter router (Internet router) with Dual ISPs and to advertise the default route from Internet router to OSPF domain- Planning to enable OSPF between Internet router and ASA outside interface and redistribute BGP into OSPF. Would like to know the security risks in doing so. Sample configs below for step1 & 2.
Current:
ASA:
inter Eth0/1
nameif inside
ip address 10.10.10.1 255.255.255.0
[Code]......
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May 27, 2013
ASA 5585-x10, ver 9.1. I have about 10 public sub nets that will be used for NAT translation on the outside interface. These sub nets are different from the sub net the outside interface. Is there a way to advertise these routes using OSPF from the ASA?
I tried to redistribute a static route, but can't make the destination router an interface that is on the ASA. I don't own or control the upstream router.
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Nov 10, 2011
I got PIX 525 with failover. Due to power issue one Unit was offline for a while. During this time couple of changes was done on the Firewall.
Which Unit becomes active when I plug the Firewall unit which was offline for a while now. Each Unit has 4 Ethernet Connection
E 0/0 - connects ISP Router
E 0/1 - connects to Lan switch
E 1/0 - connects to DMZ port
E 2/0 - connects to failover unit PIX
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Jun 20, 2011
Currently we have one ISP1 and all traffic goes to this way. Suppose our isp1 goes down, our outside user cant get the server. All servers are nated to this ISP1.We planned to purchase a another ISP2. Shall we Configure same inside server to map this ISP2? so that one primary ISP1 goes down it will take place the outside trafficISP2.
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Nov 23, 2011
How to configure ASA failover for 8.4.
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May 23, 2011
a customer have 2 pix 525 with ver 7.0.1 in a failover configuration with serial cable and 2 sc fiber interface and 2 fastethernet 1 used for failover. the strange behaviour is that when i try to do traffic from inside to dmz or dmz to inside the maximum transfer is 862Kb/s to 1MB/s not more.... i don't understand what's happened. the show mem and show cpu are normal 7% mem used and 1-2% cpu used. attached you will find the configuration.
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Jul 19, 2011
Is it possible to setup 2 x Cisco ASA 5520 that are in an Active/Standby failover using sla monitoring?
For example ASA1 outside interface connects to an upstream switch and you setup sla monitor with icmp echo to ping that switch. The switch goes down and you need the other ASA2 to become the Active ASA. Can the sla monitor be automatically integrated with the failover commands for this to happen?
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Oct 9, 2011
I have a ASA 5505 which is connected to a remote site which also has a ASA 5505 over a L2L VPN tunel. One of the sites has a WAN failover configured with two ISP which is working successfully.
But, when the WAN connection fails over to the backup connection the VPN link breaks as the peer site IP address has changed and the VPN can not establish a connection.
Would it be possible to configure a VPN failover so that when the connection failovers so will the VPN tunnel?
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Jun 20, 2011
There are 2x Cisco ASA 5505 in an active/standby failover config. The primary asa 5505 has been reset and the secondary is now running as active. I would like to reintroduce the primary again but need to know how to do this.
Ideally I would like to remove the failover config and start from scratch. Do I just need to enter the following to disable failover on the active secondary box?
no failover
no failover lan unit secondary
no failover lan interface failover Vlan999
no failover interface ip failover 192.168.254.1 255.255.255.252 standby 192.168.254.2
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Sep 24, 2012
I have a pair of ASA 5585 configured with 2 contexts, C1 & C2, C1 is active on ASA-1 & C2 is active on ASA-2 i did failover test, ping was initiated to host residing behind ASA-1 in context C1 i powered of ASA-1 then both context became active on ASA-2, however during this failover.i saw 4 ping packets drop..
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May 31, 2011
Configured ASA 5510 ISP failover and working fine.My ASA as configured as DHCP server also. So its serves IP addressing details including mask,default-gateway, DNS server IPs.Here my issue is whenever my ISP failover occurs my ASA sends previous ISP DNS server IPs to my inside clients.
Here i like to configure my ASA to serve IP addresses dynamically.Or is there any global DNS IP addresses which will work for all ISPs?
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Feb 17, 2013
So we currently have a T1 connection at our location. We were looking to add a high speed cable internet and add an ASA 5505 with Security plus license to do failover between the two. I have found a few examples on how this would work but curious about a couple things.
We would want the Cable to be the primary, T1 as a backup.Currently the IAD that handles our T1 does dhcp, dns, and NAT.. Who/what would handle these items with the setup above?
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Aug 3, 2011
I've seen you can configure stateful failover between two routers running ip inspect classic firewall: url...Can the same be done yet for zone-firewall? I cannot find any documentation on it.
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Sep 6, 2011
When we had 8.2.2, we bought a Mobile license to make the iPads running AnyConnect happy. I applied it, but since we'd only purchased one license, it broke failover. 8.4 lets you share tracking licenses, and since we were planning on the upgrade to 8.4.x anyway, I figured no big deal, I'll get that straightened out when I do the upgrade.
Did the upgrade this weekend, and I still can't get things happy, the boxes don't see one-another:
Here's a show failover on the primary:
Failover OnFailover unit PrimaryFailover LAN Interface: failover GigabitEthernet0/3 (up)Unit Poll frequency 1 seconds, holdtime 15 seconds Interface Poll frequency 5 seconds, holdtime 25 seconds Interface Policy 1Monitored Interfaces 6 of 160
[Code].....
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Mar 27, 2011
I have 2 PIX 525, which one of them, step and active failover mode the other PIX 525, leaving this off, do not know what happened may have been a power outage, but in any case I can turn it back on? And the other question I have is if I can import a configuration that I have saved on my computer. i have the PIX device manager.
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Sep 27, 2011
I got a problem with a cisco asa 5580 like two days ago and the device stop working (there was a mainteinance window and after that the device didn't work). Now we receive the RMA and we are trying to configure the failover so the new device get the configuration form the one that is working.
But this is the message that I gettin:
Failover message decryption failure. Please make sure both units have the same failover shared key and crypto license or system is not out of memory
We already changed the shared key and crypto license but the failover is still down, what are the features that the cisco need to activate to enable the failover?
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Nov 28, 2011
Can I run Cisco ASA failover with dual ISP run active/standby configuration and SLA monitor to monitor the primary ISP gateway and failover to the secondary gateway but not failover to the failover firewall unless an actual event occurred that required a ASA failover?
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Jun 5, 2011
I have this firewall working as active/standby. Everything seemed to be ok, but we noticed that confirgurations are not being replicated by saving configuration either copy run start or write. The workaround here is write standby command. Below the configs and stats, plus the show version, which is the same in both equipments:
Header 1
failover
failover lan unit primary
[Code].....
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Apr 4, 2012
I have an outside 7206 router that is configured with BGP. Behind that I have an ASA 5520 with a failover. Everytime my primary ISP goes down I have to failover the ASA to restablish a connection to the secondary ISP. When the primary comes back on line I have to fail it over again. I have had Cisco TAC look at the ASA and they didn't see anything misconfigured on the ASA. Doesn't seem to be any problems with the router config either.
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