Last call to make your voice heard! Our 2022 Developer Survey closes in less than a week. Take survey.

New answers tagged

1 vote

Cisco N9K - Down an interface in response to another interface going down?

IP SLA Tracking. Cisco's ISP Failover with Default Routes using IP SLA Tracking document details: This document describes how to configure WAN (or ISP) redundancies, wherein multiple WAN links ...
user avatar
0 votes

Why iBGP speaker should not modify next hop address?

One reason, I can think of, is when you have two exit points from your local AS. In this case setting next-hop-self on one of the boundary routers will change BGP's path selection to only use this ...
user avatar
  • 1,447
-1 votes

Can I announce the same block of /24 given to me by ARIN at two different locations?

In general, NO, you cannot. As others mention, you could announce same /24 from different locations that some things like anycasting, but that requires stateless protocols like UDP (so no using "...
user avatar
5 votes

Can I announce the same block of /24 given to me by ARIN at two different locations?

You can announce it from both locations, but the result will be that traffic to the IP block will be delivered to whichever location provides the "best" route for the traffic, which may or ...
user avatar
  • 11.6k
4 votes

Can I announce the same block of /24 given to me by ARIN at two different locations?

Yes, you can announce the same prefix in multiple location on the Internet. It is called anycast, and you see examples all the time, e.g. Google's 8.8.8.8 DNS server. Google has the network with that ...
user avatar
  • 92.9k

Top 50 recent answers are included