If I understand your question correctly, the ASA is currently configured for PPPoE and you need the change the IP address on the firewall (i.e. PPPoE will still be used after the address is changed). Is that correct?
PPPoE is used by the ASA to dynamically assign the IP address once the firewall dials in. So, if the ASA is already configured for PPPoE, you or your ISP would need to change the configuration on the server side to reflect the new IP address. No configuration changes should be required on the ASA, unless you are dialing in to a new PPPoE server.
thanks. I wanted to verify that. the device has been setup for over a year. And I cant remember exactly what I did. It is in thailand, and the local ISP changed the external IP address. I cannot get a correct answer from the local shop if they changed the ADSL modem from bridged mode before the change, or after.
I was able to instruct them to connect the serial cable and the PPOE conenction states no IP address assigned. So that reminded me that I did not statically set one.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...