06-14-2012 07:07 PM - edited 03-04-2019 04:41 PM
Hi Gurus,
I have a question regarding the use of distribute list out to only advertise deafult route to certain eigrp neighbor.
Current Scenario: i have 3 routers sitting in a same vlan1 on the switch running eigrp. Name them A, B & C. I need to advertise to C from A just default route only while keeping same to B.
i cant just use distribute-list out interface as literally all 3 of them in the same vlan interface. i read that distribute-list gateway can helps in restricting to certain neighbor, but it mentions only work for incoming advertisement.
For info, i do not have access/control of router C. what's the best way for me to achieve this on router A. Thankyou
06-15-2012 06:16 AM
Hello smart5@hotmail.com,
if the LAN switch, RA and RB are under your control and the LAN switch is configurable and supports Vlans, you can modify the topology by adding a new Vlan so that you can move RA-RB EIGRP adjacency on that new Vlan.
At that point you can apply a distribute list out on the vlan subinterface associated to Vlan 1 to RC that is the only neighbor left out there and you can achieve your objective.
Edit:
for doing this the switch port facing RA LAN interface has to be configured as a trunk allowing Vlans 1,X where X is the new Vlan and RA configuration has to be changed to use Vlan based subinterfaces.
Hope to help
Giuseppe
06-15-2012 06:51 AM
Giuseppe,
A nice workaround!
Best regards,
Peter
06-15-2012 12:56 PM - edited 05-12-2023 03:45 PM
A good solution has already been posted,
Alternating solution could be to put distribute-list in on RTB and deny default route while receiving others.
Regards
M
Sent from Cisco Technical Support Android App
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