From: Omer Ansari (omer@xxxxxxxxxx)
Date: Sun Aug 25 2002 - 00:57:11 GMT-3
C,
i used to believe that too, but some scenarios i've done seem to negate
this theory.
i've only seen this hold true when redist'ing RIP into XYZ.
interestingly enough, you can use this to use advantage in VLSM/FLSM
scenarios. there was a nice thread but it was in august and we dont have
that yet in the archive.
On Sat, 24 Aug 2002, ccie candidate wrote:
> can we then say that the redistribute command will work on the routes
> that shown up in the routing table and not the route that are on the
> database of topology .
>
>
>
>
>
>
>
> --
>
> On Sat, 24 Aug 2002 19:12:21
> Colin Barber wrote:
> >We have had a few similar mails to this problem recently. Basically if a
> >route is learnt via redistribution that route will not be redistributed into
> >another routing protocol on the same router. For IGRP to learn the routes
> >you require you must redistribute EIGRP into IGRP.
> >
> >Colin
> >
> >-----Original Message-----
> >From: walid@gnet.tn [mailto:walid@gnet.tn]
> >Sent: 24 August 2002 17:42
> >To: ccielab groupstudy
> >Subject: redistribution from eigrp2ospf2igrp
> >
> >
> >Hello all
> >if anybody can explain why redistribution cannot happen from eigrp to
> >ospf to igrp in this case :
> >
> >RA (runnig igrp)---155.1.56.0/24----RB(runnig igrp with RA, ospf with
> >other routers and eigrp with RC)----155.1.23.0/24--RC (runnig eigrp)
> >
> >there is redistribution from eigrp and ospf and from ospf to igrp on Rb
> >(with default metric, subnets ..)
> >routes learned from RC by eigrp in the same major network as 155.1.56.0
> >(155.1.x.x) cannot be redistrubute from ospf to igrp while other routes
> >(exp 172.68.x.x) that are learned from eigrp can be redistrubute to ospf
> >an then to igrp:
> >
> >RB :
> >sh ip route eigrp
> >RB#sh ip route eigrp
> > 155.1.0.0/16 is variably subnetted, 21 subnets, 3 masks
> >D 155.1.22.0/29 [90/21024000] via 155.1.23.5, Serial0/1
> >D 155.1.55.0/24 [90/20640000] via 155.1.23.5, Serial0/1
> > 176.68.0.0/16 is variably subnetted, 3 subnets, 2 masks
> >D 176.68.4.0/24 [90/287132416] via 155.1.25.10, Async65
> >D 176.68.7.0/24 [90/287132416] via 155.1.25.10, Async65
> >RA
> >RA#sh ip route igrp
> > 155.1.0.0/16 is variably subnetted, 16 subnets, 2 masks
> >I 155.1.24.0/24 [100/1114] via 155.1.56.6, 00:00:02, Ethernet0
> >I 155.1.25.0/24 [100/1125568] via 155.1.56.6, 00:00:02, Ethernet0
> >I 176.68.0.0/16 [100/1114] via 155.1.56.6, 00:00:04, Ethernet0
> >
> >redistribution on RB :
> >!
> >router eigrp 5
> > redistribute ospf 1 metric 10000 10 10 10 1500
> > network 155.1.23.0 0.0.0.255
> > network 155.1.25.0 0.0.0.255
> > default-metric 10000 10 10 10 1500
> > no auto-summary
> >!
> >router ospf 1
> > redistribute eigrp 5 metric 20 subnets
> > network 155.1.6.0 0.0.0.255 area 1
> > !
> >router igrp 1
> > redistribute ospf 1 metric 10000 10 10 10 1500 match internal external
> >1 external 2
> > passive-interface Async65
> > network 155.1.0.0
> > default-metric 10000 10 10 10 1500
> >!
> >---------
> >Rb
> >sh ip ospf database
> > Type-5 AS External Link States
> >
> >Link ID ADV Router Age Seq# Checksum Tag
> >
> >155.1.22.0 155.1.6.1 1830 0x8000007E 0xA8AB 0
> >155.1.55.0 155.1.6.1 1830 0x8000008C 0x4AD3 0
> >176.68.0.0 155.1.2.1 1410 0x80000002 0xC054 0
> >176.68.4.0 155.1.6.1 1317 0x80000002 0x592A 0
> >176.68.7.0 155.1.6.1 1317 0x80000002 0x3848 0
This archive was generated by hypermail 2.1.4 : Sat Sep 07 2002 - 19:48:36 GMT-3