11 Feb
1997
11 Feb
'97
4:16 p.m.
My standard in & out route filters are attached. Everyone should use something like this. --asp@partan.com (Andrew Partan)
! Deny martian routes ! 1st and last classical B and C nets (guard nets). access-list 180 deny ip 128.0.0.0 0.0.255.255 255.255.0.0 0.0.255.255 access-list 180 deny ip 191.255.0.0 0.0.255.255 255.255.0.0 0.0.255.255 access-list 180 deny ip 192.0.0.0 0.0.0.255 255.255.255.0 0.0.0.255 access-list 180 deny ip 223.255.255.0 0.0.0.255 255.255.255.0 0.0.0.255
In a classless environment, these prefixes are legitimate. Correct behaviour is now known for these subnets and so I wonder why you still have them in your standard list. -- --bill