New Firmware. Personally, I like to use upper level ports (and redirect them to the proper ports internally) for common services like SMTP and SSH. This by-passess most of the crufty auto-scannering bots that are out there. port 7735 ==> 25 internal machine 192.168.1.11 port 7832 ==> 22 internal machine 192.168.1.11
Then you can simply do a check from your internal box and drop the connection if it is not from an approved range. Jon ----- Original Message ----- From: Ralph Blach <[EMAIL PROTECTED]> Date: Monday, July 24, 2006 7:17 am Subject: [TriLUG] linksys linux router question To: [email protected] > I have a linksys linux router and has everthing all the function I > want > almost. > > What is does not seem to have is the ability to drop connection on > a > port if it does not come from a specific range of address. > > Specifically , I would like to forward sendmail and and sshd only > if > they come from specific address ranges. > > Is there any way to do this using the linksys firmware or do I have > to > load a new firmware. > > Any ideas would be appreciated. > > Chip > -- > TriLUG mailing list : > http://www.trilug.org/mailman/listinfo/trilugTriLUG Organizational > FAQ : http://trilug.org/faq/ > TriLUG Member Services FAQ : http://members.trilug.org/services_faq/ > -- TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug TriLUG Organizational FAQ : http://trilug.org/faq/ TriLUG Member Services FAQ : http://members.trilug.org/services_faq/
