Re: mask for interface

[Ozgur AKAN <akan@aiqa.com>]

Finally I understand it !

iptables -A test -i eth+ -j ACCEPT
iptables -A test -i eth0 -j ACCEPT
iptables -A test -i eth0+ -j ACCEPT
iptables -A test -i + -j ACCEPT
iptables -A test -i e+ -j ACCEPT

output of a test program is

iface : eth+, Mask is :FF,FF,FF
iface : eth0, Mask is :FF,FF,FF,FF,FF
iface : eth0+, Mask is :FF,FF,FF,FF
iface : +, Mask is :
iface : e+, Mask is :FF


-------test function to print mask value------
static void printMask(unsigned char *mask)
{
    printf("Mask is :");

    while (*mask != '\0') {
        printf("%X%s", *mask, *(mask+1) != '\0' ? "," : "\n");
        ++mask;
    }
}
-----------------------------------------------------



Thanks for your help...

Ozgur AKAN

>Again, it is used for the + wildcard.
>
>In theory it could be used for other things as well, but only the + 
>wildcard is implemented in the iptables application.
>
>Regards
>Henrik
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