From: Andre.Dufour@barclayscapital.com
Date: Sun Oct 19 2003 - 15:42:25 GMT-3
Mac,
Your configs appear to be fine...
Keep in mind what Danny said about the subnets command; if you don't use the
subnets command then OSPF will only incorporate (during the redistribution
process) major networks (classfull)....by adding subnets, you ensure that
all networks are incorporated (as long as they have not been auto summarized
by EIGRP!!!)....
Cheers,
Andre'
-----Original Message-----
From: Daniel Free
To: Mac; Dufour, Andre': IT (NYK); ccielab@groupstudy.com
Sent: 10/19/03 7:05 PM
Subject: Re: Redistribution between OSPF and EIGRP
Hi Mac,
Don't forget the "subnets" keyword whenever you redistribute any
protocol
into OSPF.
Danny
----- Original Message -----
From: "Mac" <lmac0303@hotmail.com>
To: <Andre.Dufour@barclayscapital.com>; <ccielab@groupstudy.com>
Sent: Sunday, October 19, 2003 2:37 AM
Subject: Re: Redistribution between OSPF and EIGRP
> Thanks for those tips. But as the diagram below, can I configure it
like
> this:
>
> 172.16.x.x } OSPF ---172.16.1.1(s0)R1(E0)192.168.1.1----EIGRP {
192.168.x.x
>
>
> R1
>
> router ospf 1
> network 172.168.1.0 0.0.0.255 area 0
> passive-interface ethernet 0
> redistribute eigrp 1 route-map eigrp-to-ospf
>
>
> router eigrp 1
> network 192.168.1.0 0.0.0.255
> passive-interface serial 0
> redistribute ospf 1 metric 1000 100 255 1 1500 route-map
ospf-to-eigrp
> no auto
>
>
> route-map eigrp-to-ospf permit 10
> match ip add 10
>
>
> route-map ospf-to-eigrp permit 10
> match ip add 20
>
> access-list 10 permit 192.168.0.0 0.0.255.255
>
> access-list 20 pemrit 172.16.0.0 0.0.255.255
>
>
> //What if I configure prefix-list instead of access-list like below
>
> ip prefix-list OSPF seq 5 permit 172.16.0.0/16
> ip prefix-list EIGrP seq 5 permit 192.168.0.0/16
>
> any correction or comment will be greatly appreciated.
>
> Thanks,
>
> ++++
> MAC
> ++++
> ----- Original Message -----
> From: <Andre.Dufour@barclayscapital.com>
> To: <ccielab@groupstudy.com>
> Sent: Sunday, October 19, 2003 1:02 PM
> Subject: RE: Redistribution between OSPF and EIGRP
>
>
> > A few things..
> > * OSPF does not use split-horizon; its design (when used properly)
> > negates it.
> > * OSPF is a link state protocol; passive interfaces kill OSPF
updates.
> > * Pick exact redistribution points and apply whatever methods (on
those
> > redis points) you may choose to explicilty stop loops.
> > * EIGRP's auto-summary vs. OSPFs manual summ.; most specific routes
> > (routes that are not summarized) (regardless of AD) will be chosen.
> > * As with all redistr., try to control access points to and from the
AS.
> >
> > Best regards,
> > Andre '
> >
> > -----Original Message-----
> > From: Mac [mailto:lmac0303@hotmail.com]
> > Sent: Saturday, October 18, 2003 10:48 PM
> > To: ccielab@groupstudy.com
> > Subject: Redistribution between OSPF and EIGRP
> >
> >
> > Hi, Group,
> >
> > Just wondering what I need to consider when I do redistribution
between
> > OSPFand EIGRP. Do I need to configure filter to avoid routing loop
> > between them? Should I use passive-interface in such case? Thanks a
> > lot.
> >
> >
> > ++++
> > MAC
> > ++++
> >
> >
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