18 Jun
2010
18 Jun
'10
1:27 p.m.
On 2010.06.18 08:49, Chris Adams wrote:
Once upon a time, Steve Bertrand <steve@ipv6canada.com> said:
If all IP blocks are tied down to null, and urpf is enabled in loose mode on an interface, it will catch cases where someone is sourcing traffic to you using IPs from the unassigned space that you have in your free pools.
That's not true on JUNOS devices - discard routes still count as valid routes for loose-mode uRPF.
Are you saying that JUNOS will not drop on source even if the only valid route for an IP address is to null? On any other router I've used, null/disc etc is a valid route, but it is considered special in that if the route is to null, discard it, even on source. Steve