North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Is it time to abandon bogon prefix filters?
We recently expanded our network, separating our multi-homed transit network from our corporate and 'network services' LANs. We use BGP sessions between our transit and services networks to trade internal (RFC1918) routes as well as supply a default route. We do not trade external routes over these news sessions. A happy side-effect of this is that our black-hole router, with a cymru bogon feed, now populates the corporate routing table, rather than our full transit table, and by using strict URPF all bogon traffic gets dropped (inbound), and no more-specific routes learned by the transit routers will override our BH routes. - Eric AS17103 |