Hi, how can I filter IPsec traffic with u32 filters? I know IPsec needs Port 500/UDP and IP protocols 50 and 51. I know how to get the port stuff, but how can I make u32 to match the protocol number? thx, cb _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
Cord Buhlert wrote:> how can I filter IPsec traffic with u32 filters? > I know IPsec needs Port 500/UDP and IP protocols 50 and 51. I know how > to get the port stuff, but how can I make u32 to match the protocol > number?Same as matching tcp packets: match ip protocol 0x32 0xff (ESP proto 50) or match ip protocol 0x33 0xff (AH proto 51) regards -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Damion de Soto - Software Engineer email: damion@snapgear.com SnapGear - A CyberGuard Company --- ph: +61 7 3435 2809 | Custom Embedded Solutions fax: +61 7 3891 3630 | and Security Appliances web: http://www.snapgear.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ --- Free Embedded Linux Distro at http://www.snapgear.org --- _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/