North American Network Operators Group
Date Prev | Date Next |
Date Index |
Thread Index |
Author Index |
Historical
Re: Packets from net 10 (no, not the lyrics)
- From: Mohamad Eljazzar
- Date: Tue Sep 23 11:36:52 1997
What about providers that use portions of the private address space on
their network (up to and including the client's serial interface)?
Mohamad
On Tue, 23 Sep 1997 bmanning@ISI.EDU wrote:
> > Should I be filtering all reserved space at my border, or would
> > it be reasonable for me to expect the big guys not to take packets
> > with clearly inappropriate source addresses?
>
> Yes you should. (and with kudos to Andrew)
>
> ! Loopback
> access-list 100 deny ip 127.0.0.0 0.255.255.255 255.0.0.0 0.255.255.255
> ! RFC 1918 private blocks
> access-list 100 deny ip 10.0.0.0 0.255.255.255 255.0.0.0 0.255.255.255
> access-list 100 deny ip 172.16.0.0 0.15.255.255 255.240.0.0 0.15.255.255
> access-list 100 deny ip 192.168.0.0 0.0.255.255 255.255.0.0 0.0.255.255
> ! Test Network
> access-list 100 deny ip 192.0.2.0 0.0.0.255 255.255.255.0 0.0.0.255
> ! Tiny networks.
> access-list 100 deny ip any 255.255.255.128 0.0.0.127
> access-list 100 permit ip any any
>
>
> > Or is my view on the situation incomplete?
>
> I think so.
>
>
>
> --
> --bill
>
|
