Will Trillich <[EMAIL PROTECTED]> writes:
> On my `ipfwadm -leO` output i notice among other rules... > > IP firewall output rules, default policy: deny > pkts bytes type prot opt tosa tosx source destination ports > 0 0 acc udp ---- 0xFF 0x00 0.0.0.0/0 224.0.0.0/4 * -> * > 0 0 acc icmp ---- 0xFF 0x00 0.0.0.0/0 224.0.0.0/4 * > [columns omitted for space] > > this is something that appeared after an 'apt-get upgrade' > (currently in frozen with a slink kernel). > Q: what's the 224.0.0.0 ip/netmask for? > Q: what's the scheme behind ports '* -> *'? > > With a netmask of /4 digits, the 224 (decimal) translates to > 'E0' (hex); so valid values for the first 'dot' are anything > from 224 (E0) to 239 (EF). I'm familiar with some reserved > blocks of IP numbers, such as 168.192.*.* and 127.0.0.1 -- > so, what's (E*).*.*.* for? Hi, AFAIK 224.0.0.0 is the adress for multicasting. You can enable/disable this in the 2.2.x kernel Regs Baer -- You will pay for your sins. If you have already paid, please disregard this message. ;-)
