IKEv1 and IKEv2 session in ASDM monitor?
Hi all, have a question. I have a setup of L2L tunnel between two ASA (v8.4). I used the wizard to put these in place and selected the default values of IKEv1 and IKEv2, thinking that he would choose one or the other. The strange thing is that, now, I see a separate session between these ASA, for IKEv1 and IKEv2. Both pass traffic. This is expected behavior? Should I disable IKEv1 to force only v2, since both are v8.4?
photo attached to explain.
If both versions are configured then two IKE tunnels will be established.
I don't know if that this is expected behavior. On tune ASA the tunnel manager should try IKEv2 first and if it fails try IKEv1.
There could be some problems in which one side would launch IKEv1 while the other is IKEv2 concurrency.
It's something we can can be studied by the tunnel manager and the two Yves debugging.
debug crypto ike-common 5
debug crypto ....
I think you might want to open a TAC case, then we can this check completely.
Tags: Cisco Security
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I have a router 2821 with multiple IPSec Tunnels on it. I would like to replace it with an ASA 5510. My hope is to share these stars with a minimal impact on the active Tunnels. I have the details of each well-documented Tunnel. My question or concern is in the configuration of Tunnels on the SAA. I have to configure IKE proposals in IKEv1 right? If I use IKEv2, my concern is that there will be compatibility problems with the remote end of the tunnel, or is functional IKEv2 with IKEv1? If no, then, can I just all set up in IKEv1 and ignore IKEv2?
Thank you in advance for any idea offered.
Dear Eric,
Both ends must be configured for the same version of IKE.
So you can ignore the IKEv2 parameters, even to uncheck the option 'Enable' IKEv2 in the connection profile.
HTH.
Portu.
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WR
You are welcome
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Hello
WE have a CISCO ASA 5520 with firmware 8.4.7 - 15 and let me know if this device/firmware is affected by this new vulnerability ' ASA IKEv1/IKEv2 - Buffer Overflow Vulnerability '.
Thank you very much
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Please upgrade the recommended patches.
Since it is set at 8.4.7.30 you can try upgrading to this image.
Kind regards
Aditya
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Hello
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regarding
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