Hunh? Of coure EIGRP does split horizon by default. It is a distance vector
protocol despite its bells and whistles. It also does poison reverse by
default, by the way.

I came in late to the conversation, so if this is irrelevant, I apologize!
:-)

Priscilla

The Long and Winding Road wrote:
> 
> ""Larry Letterman""  wrote in message
> news:[EMAIL PROTECTED]
> > The only protocol for routing is eigrp...
> > Looks like split horizon is on to me...
> 
> 
> sure, but the interface report serves a different purpose. The
> only routing
> protocols that honor split horizon are IGRP and RIP.
> 
> BGP, OSPF and EIGRP use topology tables of one kind or another
> ( stop
> steaming at the ears, Howard :-> )
> 
> it is highly feasible that any of these latter protocols would
> need to
> advertise routes back out the interface from which they were
> learned. Eg DR,
> BDR, etc. BGP neighbor, etc.
> 
> >
> > GigabitEthernet1/1 is up, line protocol is up
> >   Internet address is 171.71.243.34/30
> >   Broadcast address is 255.255.255.255
> >   Address determined by non-volatile memory
> >   MTU is 1500 bytes
> >   Helper address is not set
> >   Directed broadcast forwarding is disabled
> >   Outgoing access list is not set
> >   Inbound  access list is not set
> >   Proxy ARP is enabled
> >   Local Proxy ARP is disabled
> >   Security level is default
> >   Split horizon is enabled
> >
> > Larry Letterman
> > Network Engineer
> > Cisco Systems
> >
> >
> >   ----- Original Message -----
> >   From: Troy Leliard
> >   To: [EMAIL PROTECTED]
> >   Sent: Wednesday, March 05, 2003 4:57 AM
> >   Subject: Re: Off Topic - just screwing around and what do I
> [7:64454]
> >
> >
> >   Split Horizon for EIGRP ... dont think so. !!!
> >
> >   Larry Letterman wrote:
> >   >
> >   > r3 sends to r2, then r2 sends back to r3..
> >   > you sure about that...split horizon should be enabled for
> >   > eigrp and igrp..and igrp and eigrp will work together in
> the
> >   > same as number..not sure about different as #'s....
> >   >
> >   > Larry Letterman
> >   > Network Engineer
> >   > Cisco Systems
> >   >
> >   >
> >   >   ----- Original Message -----
> >   >   From: The Long and Winding Road
> >   >   To: [EMAIL PROTECTED]
> >   >   Sent: Tuesday, March 04, 2003 11:04 PM
> >   >   Subject: Off Topic - just screwing around and what do I
> see?
> >   > [7:64449]
> >   >
> >   >
> >   >   three routers in a circle. but that's irrelevant.
> >   >
> >   >   inbound from r3-------r1--r2-----r3----->back to r1
> >   >
> >   >
> >   >   I have IGRP between two of the routers. I have loopback
> on
> >   > each of the two
> >   >   routers -- 222.222.222.x/32
> >   >
> >   >   watching the 222.222.222.0/24 subnet advertisement. R2
> sends
> >   > it to R3 and
> >   > R3
> >   >   sends it to R2
> >   >
> >   >   ???????????????????????????
> >   >
> >   >   wait a minute - since when does EIGRP automatically
> >   > redistribute into IGRP,
> >   >   even when the AS numbers are DIFFERENT????????
> >   >
> >   >   router eigrp 200
> >   >    passive-interface default
> >   >    no passive-interface Serial1
> >   >    network 199.35.1.0
> >   >    network 222.222.222.0
> >   >    no auto-summary
> >   >    no eigrp log-neighbor-changes
> >   >   !
> >   >   router igrp 100
> >   >    passive-interface default
> >   >    no passive-interface Serial0
> >   >    network 199.34.1.0
> >   >   !
> >   >   Router_3#sh ip route 222.222.222.0
> >   >   Routing entry for 222.222.222.0/24, 2 known subnets
> >   >     Attached (1 connections)
> >   >     Variably subnetted with 2 masks
> >   >     Redistributing via eigrp 200
> >   >     Advertised by igrp 100
> >   >
> >   >   ????????????????
> >   >
> >   >   well, at least IGRP isn't in the Lab any longer......
> >   >
> >   >   --
> >   >   TANSTAAFL
> >   >   "there ain't no such thing as a free lunch"
> 
> 




Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=64540&t=64454
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