Avi Freedman <freedman@netaxs.com> writes:

The danger with this approach is, obviously, that the router that you try to do this to can go away. In which case you shoot yourself in the foot. Some day, someone will send me a valid use of 'set ip next-hop' but I haven't seen a good one yet.

I believe initially it was dropped into route-maps to deal with situations involving having three different ASes share a broadcast LAN in Washington D.C. as an internal link. (AS 1239, AS 1790, both sharing a single IGP instance, AS 1800 with a different IGP instance, to be specific. Running two independent iIS-IS instances on a single wire was fun too.) FSVO "valid use", but it did make things work. Sean.