05-23-2008 09:59 PM - edited 03-03-2019 10:04 PM
What is the default route means in EIGRP. How it works.
Thanks in advance
05-23-2008 10:15 PM
Do you mean how to pass on default route in EIGRP?
EIGRP does not redistribute the 0.0.0.0 0.0.0.0 default route by default. However, if the network 0.0.0.0 command is added to the EIGRP configuration, it redistributes a default route as a result of the ip route 0.0.0.0 0.0.0.0 interface command (but not as a result of the ip route 0.0.0.0 0.0.0.0 address or ip default-network command).
For example, the following configuration results in the 0.0.0.0 route being passed to the EIGRP neighbors of the router.
Router(config)#interface serial 0/0/0
Router(config-if)#ip address 10.1.1.1 255.255.255.0
!
Router(config)#ip route 0.0.0.0 0.0.0.0 serial 0/0/0
!
Router(config)#router eigrp 100
Router(config-router)#network 0.0.0.0
HTH
Narayan
05-23-2008 10:25 PM
Thanks Narayan,
U cleared my path.
Ru from Mphasis Bangalore
Thanks and Regards
Eldose
05-24-2008 12:30 AM
Yup... do you know anyone in Mphasis?
Narayan
05-24-2008 12:42 AM
Yes, i know all the Fedex group in Mphasis, Bangalore
Eldose George
Network Engineer
HSBC BANK Middle East LTD
Dubai Internet City
05-24-2008 08:10 AM
Narayan:
Please excuse me, I dont mean to be a jerk, but are you sure about that? I do believe that you can redistribute a default route into EIGRP without using the network 0.0.0.0 command under the eigrp process. The ip route 0.0.0.0 0.0.0.0
eigrp 100
redistribute static
ip route 0.0.0.0 0.0.0.0 1.1.1.1
Do you agree?
Victor
05-25-2008 01:10 AM
Victor,
You are correct and you can introduce a default route with the redistribute static command.
My post was for originating a default route in EIGRP without the redistribution command. The only difference would be that in my case the default route would be an EIGRP internal route and in your case it would be treated as an external route
HTH
Narayan
05-25-2008 03:09 AM
Hello Narayan,
with EIGRP there is also another way : using the ip default-network command. I tried it and it works.
It uses the external flag that is part of an EIGRP route data structure. This flag is set in the advertisement of the network that is declared in the ip default-network command. The meaning is that there is a gateway of last resort connected to that network.
Best Regards
Giuseppe
05-25-2008 05:55 AM
Narayan:
Thanks for clearing that up for me. I agree with you on the internal/external thing. Perhaps I misread your post and understood it to mean that its not possible to redistribute a static default and make it work. My bad...
Thank you for your time, and my apologies...
Victor
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