el 06-13-2024 07:41 PM
router EIGRP 20
redistribute connected
no auto-summary
eigrp stub connected summary
network 10.0.0.0
network 192.168.0.0
el 06-14-2024 12:00 AM
those are valid commands, what is the query.
more information good to start from here :
https://community.cisco.com/t5/networking-knowledge-base/how-to-configure-eigrp-for-ip/ta-p/3132134
el 06-14-2024 01:52 AM
Hi Friend
can you please more elaborate which command you talk about ?
MHM
el 06-16-2024 10:35 AM
The serious question, I am in a company that these days, I do not create backup, and the configuration that that layer 3 switch has is something like this:
outer EIGRP 20
redistribute connected
no auto-summary
eigrp stub connected summary
network 10.0.0.0
network 192.168.0.0
outer EIGRP 20
redistribute connected
no auto-summary
eigrp stub connected summary
network 10.0.0.0
network 192.168.0.0
el 06-16-2024 10:57 AM
I will share series of Lab show each command how it effect
1- redistribute connect <<- this make EIGRP redistrubte any prefix show in RIB as connected
include interface connect to L3 device and LO
2- no auto-summary <<- this legacy no one use it any more because all IGP now use classless not classful
it summary classful subnet or not (when we use NO with command) this command use mainly in RIP
but some engineer use NO auto-summary just to sure that eigrp not auto-summary prefix to it classful
el 06-16-2024 11:08 AM
3- eigrp stub connected
this command make eigrp not advertise to neigbor (all) any prefix Except connected prefix
here in lab you can see only Lo is advertise even if you under the f0/0 of R2 there is eigrp summary prefix
4- eigrp stub connected summary
here eigrp not advertise any prefix Except the connected and summary
you see the R2 now advertise the summary 22.0.0.0/8 to R1
NOTE:- when you config summary and advertise to neighbor of eigrp any prefix include in that summary will now not advertise that inlcude LO2 and LO21 since it prefix is include in summary
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