02-12-2011 02:29 AM - edited 03-06-2019 03:30 PM
hi ALL,
i would like you to share information for the below case,
i have 3 subnets behaind a firewall ( FW not cisco not supporting EIGRP)
172.30.0.0/24
172.30.1.0/24
172.30.30.0/24
on core switch i have created 3 static routes pointing these networks to the firewall.
static routes are redistributed in to the EIGRP.
EIGRP advertise these network as External EIGRP routes ( as Normal) AD=170
same network are advertised through RIP AD=120 on the backup links (slower links)
EIGRP is running on links the MUCH faster than links running RIP
EIGRP is running on primary links and RIP running on backup links
remote rouers/ L3 switches are using the RIP with the slower links as prefered links over EIGRP with faster links.
AD 120 RIP < 170 EIGRP
how to make these routes advertized for the static routes as internal routes or at least better than AD 120 or better than the RIP routes.
thanks
02-12-2011 03:06 AM
Hello,
A network redistributed into EIGRP will always be considered and advertised as external. In addition, you cannot selectively modify an AD of EIGRP external routes. What you can do is to assign a lower AD all EIGRP-learned external routes using the command:
router eigrp ... ! Replace with your EIGRP AS/process number
distance eigrp 90 119
This will make your router assign the AD of 119 to all external EIGRP routes. Once again, note that this modification has to be configured on all EIGRP-enabled routers in your network, as the AD is a local criterion not advertised by any protocol.
Best regards,
Peter
02-12-2011 07:32 AM
thanks Peter,
i have tried this before, All RIP updates disapear.which is for me not comportable, rip database almost empty except for the local advertised routes.
the main problem in this case is all routes that must be reached through the slow link are now reached all throught the Fast link
the slow link become idle
also i have tried to summaries these routes as it is on the outgoing interfaces but no luck.
see attached image for more details.
i will appreciate any help to only change these networks (statics routes ) to look like EIGRP internal Route.
thanks
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide