I have been using the latest version of SDM V232 to configure this router.
I have enabled the SDM_LOW (higher settings are greyed out) firewall configuration, but I seem to be getting inundated with problems.
The ADSL connection seems to deteriate over time untill it resets, or the router reboots.
I believe that I am constantly under attack as the firewall log shows so many attempts to connect to my router that have been blocked. I am sure that some attacks are being carried out.
The reason I changed to a cisco837 was because the security on the cheap dlink etc are so poor.
Can anyone offer any sugestions as to what I can do to prevent this.
Am I right in thinking that if I take out a support contract I can upgrade to a higher IOS that will allow me to use the more secure level of the SDM firewall.
Will I be able to acces the SDF files from cisco to help with the IPS?
I am a little dissapointed with this device as I bought it thinking that it was the IP security version, only to find that all the functionality is unavailable in this version and trying to find out information from Cisco is like getting blood out of a stone.
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...