marcusbrutus wrote:
Or should I do the below instead?
int tu0
ip summary-address eigrp 1 10.55.0.0 255.255.0.0
*and just remove the distribute list from the eigrp process?
Note:
Basically, i am looking to just advertise 10.55.0.0/24 out via the tu0 and advertise everything else out the remainint interfaces.
Marcus
Personally if you can use the EIGRP summary address then i would do that. Couple of things to note -
Is 10.55.0.0/24 a directly connected network on the router ? The reason i ask is that when you create a summary route EIGRP places the route into the local routers table with an AD of 5 and a next-hop of null0. If this router is actually learning the 10.55.0.0/24 network from another router then it that route it learns will have an AD of 90 so you have blackholed that network because the null0 route is preferred because of it's AD.
Having said that your summary route subnet-mask in the above example is 255.255.0.0 not 255.255.255.0 so the above may not apply. Basically what the above will do is for any routes that are more specific than 10.55.0.0/16 eg. 10.55.0.0/24, 10.55.1.0/24 etc.. those routes will work fine on the local router and traffic will be forwarded correctly.
For any 10.55.x.0 networks that do not have routes in the local routing table, these will be blackholed ie. sent to null0 which may well be what you want anyway.
Jon
