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Community Member

ASA5520 Spontaneous Reset and Lost DNS

Running an ASA5520 7.0(1)that will periodically "reset". All VPN traffic then gets cut off until we manually re-enter the DNS info that was "saved" to flash. Ideas? Thanks.

5 REPLIES
Bronze

Re: ASA5520 Spontaneous Reset and Lost DNS

What 'DNS' information are you typing in? Typically DNS information isn't used in setting up VPNs.

--Jason

Community Member

Re: ASA5520 Spontaneous Reset and Lost DNS

Our internal DNS -- we simply relay internally to the "real" world. The LAN access of course, does not work without the DNS info in the ASA. There are really two questions here: why the spontaneous reset, and why does saved DNS info not save?

Thanks!

Bronze

Re: ASA5520 Spontaneous Reset and Lost DNS

Hello,

What commands are you typing back into the pix that are missing upon reboot? Are you saving the configuration afterwards?

--Jason

Hall of Fame Super Gold

Re: ASA5520 Spontaneous Reset and Lost DNS

Michael

I recently had experience with an ASA5510 which would periodically spontaneously reboot. An upgrade of code fixed the problem.

HTH

Rick

Community Member

Re: ASA5520 Spontaneous Reset and Lost DNS

Via ASDM, under the VPN tab, General tab, Group Policy definition, is a default group policy that contains the primary and secondary DNS IP addresses. Yes, it says it has saved it to flash, but the spontaneous reboot clears this one setting.

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