ASA 5510 + Failover Active/Standby

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Nov 10th, 2006
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i try to configure two ASA5510 in a failover szenario. After I have already finished the setup on the primary ASA I try to send the configuration to the secondary. Following Error is shown:

"Unable to configure the firewall at XXX.XXX.XXX.XXX for the following reason:

PDM was not able to determine the context mode of the peer at XXX.XXX.XXX.XXX"

Is this a problem of the context mode? Both ASA?s run in single mode or must there be a special Firewall configuration.

Thank you for your support.

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shabiersayed Sat, 11/11/2006 - 00:31
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Hi could you please tell me the physical connection of Fail over?

100trocker Sat, 11/11/2006 - 01:09
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We have connected a crossover cable on the ethernet 0/3 in between both asa interfaces.

talha_490 Sat, 11/11/2006 - 02:58
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Can you send the show version output of the firewall?

check the failover license it has?

100trocker Sat, 11/11/2006 - 04:38
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Licensed features for this platform:

Maximum Physical Interfaces : Unlimited

Maximum VLANs : 25

Inside Hosts : Unlimited

Failover : Active/Standby

VPN-DES : Enabled

VPN-3DES-AES : Enabled

Security Contexts : 0

GTP/GPRS : Disabled

VPN Peers : 250

WebVPN Peers : 2

This platform has an ASA 5510 Security Plus license.

They are identical on both ASAs.


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