Andrew,

thanks for replying, now my question is..for which netwrk 10.10.1.0 or 10.10.2.0 both (R5 and R6)RTR will recve one query each.

and as per my understanding as v r filtering out 10.10.1.0 n/w on R4, R5 shold recv one quesry for 10.10.2.0 frm R4 and R6 shd recv two qery for 10.10.1.0 and 10.10.2.0 .

correct me if I am wrong.

Regards...Mukesh

Hello Mukesh,

R4 has an outbound distribute-list that allows only 10.10.1.0/24 to R5.

R5 and R6 are never aware of net 10.10.2.0/24.

So R4 should send a single query for 10.10.1.0/24 to R5, R5 sends a query to R6.

The key is what creates boundaries to queries?

- route summarizations

- route filters

only doubt is inbound or outbound filters ?

later a third tool has been added:

eigrp stub routers

Hope to help

Giuseppe

Hope to help

Giuseppe

Hello Mukesh,

I've found the following link that explains interaction between distribute-lists, EIGRP queries and EIGRP replies.

see

http://www.cisco.com/en/US/tech/tk365/technologies_white_paper09186a0080094cb7.shtml#distlistsaffect

oubound route filters alter only replies and have no effects on Queries.

if so :

R4 sends two Queries to R5 and R5 sends two queries to R6.

Should R5 and R6 provide a path to 10.1.2.0/24 R4 would use it.

Hope to help

Giuseppe

Hope to help

Giuseppe