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Public ip losts ping after 20 - 30 minutes after doing ISP migration

Hi Experts,

We  had an ASA in our environment and tried to migrate to new ISP. But  after the migration of the ISP, internet well as vpn disconnects in 20 -  30 minutes.

Following are the noticable things after the internet disconnets

1) Ping to the ASA's outside interface lost

2) Ping to the ISP gateway is still there

3) A shut/no shut to the outside interface doesn't restore the internet connection

4) Only removal of outside ip using "no" command and assigning the same ip restores the internet connection

5) But again the internet losts in 20 - 30 mins (only after doing the above steps restores the connection again)

My Queries

1) Is this an ISP issue or any other mis-configuration in ASA

Kindly provide everyone valuable suggessions and advice to this problem.

Thanks and Regards,

Sihanu N

3 REPLIES

Public ip losts ping after 20 - 30 minutes after doing ISP migra

Hello Sihanu,

This could be an ARP issue, what version are you running?

Also by any chance did you reload the ASDL or Modem after the change, if not you could give it a try!

Julio

Julio Carvajal
Senior Network Security and Core Specialist
CCIE #42930, 2xCCNP, JNCIP-SEC
New Member

Public ip losts ping after 20 - 30 minutes after doing ISP migra

Hi all,

The issue has been resolved as the problem was due to the ISP circuit problem and also the circuit was restored by them without any configuration changes from ourside.

Thanks and Regards

Sihanu N

Public ip losts ping after 20 - 30 minutes after doing ISP migra

Hello Sihanum

Great to hear that, please mark the question as answered so any future user having the same issue can learn from here.

Regards,

Julio

Julio Carvajal
Senior Network Security and Core Specialist
CCIE #42930, 2xCCNP, JNCIP-SEC
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