From the documentation that i have read concerning bgp backdoor, i assume that a network marked as backdoor is NOT advertised:
network x.x.x.x backdoor
-> if network x.x.x.x is received from eBGP, its admin distance is changed to 200, to prefer an IGP learned network. However, network x.x.x.x is not advertised to BGP peers by this command, even if x.x.x.x has an exact match in our routing table. Correct ?
But what will happen in the following situation:
router eigrp 1
network x.x.x.x
router bgp 65000
network x.x.x.x backdoor
redistribute eigrp 1
neighbor y.y.y.y remote-as 65100
Will network x.x.x.x be advertised to AS65100 by the redistribute command ?? Or will the backdoor command prevent this ?? Will the backdoor command only work on received routes from AS65100 ???
Can someone shed some light on this ?? I am unable to test this in a lab at this time.
Regards,
Geert