You've got it! They can be used for iBGP, DNS resolution, GRE tunnel
endpoints, OSPF/BGP Router IDs, route summarization...the list goes on.
Robert Edmonds 8/5/03 3:26:35 PM
So, if I understand correctly, aside from OSPF router ID's and the like,
just use a loopback interface when you want an
: Re: Loopback Interface [7:73305]
I think your thinking way too hard about this;) A loobback is
nothing more than a logical interface as opposed to a physical
interface. As far as the routing process is concerned it's just another
interface. Don't know how to articulate it any further
PROTECTED]
Sent: Tuesday, August 05, 2003 9:47 AM
To: [EMAIL PROTECTED]
Subject: Re: Loopback Interface [7:73305]
You gentlemen have pointed out some good uses for loopback interfaces.
However, my dilema still remains that I have yet to have somebody solidly
explain loopback interfaces
n_guide_chapter09186a0080087da4.html#3302
-Original Message-
From: Robert Edmonds [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 05, 2003 9:47 AM
To: [EMAIL PROTECTED]
Subject: Re: Loopback Interface [7:73305]
You gentlemen have pointed out some good uses for loopback interfaces
To: [EMAIL PROTECTED]
Subject: Re: Loopback Interface [7:73305]
I think your thinking way too hard about this;) A loobback is
nothing more than a logical interface as opposed to a physical
interface. As far as the routing process is concerned it's just
another
interface. Don't know how
So, if I understand correctly, aside from OSPF router ID's and the like,
just use a loopback interface when you want an always up/up interface.
That's pretty simple.
John Neiberger wrote in message
news:[EMAIL PROTECTED]
Exactly right. Sometimes it's nice to have a virtual interface whose
-
From: Robert Edmonds [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 05, 2003 12:47 PM
To: [EMAIL PROTECTED]
Subject: Re: Loopback Interface [7:73305]
You gentlemen have pointed out some good uses for loopback interfaces.
However, my dilema still remains that I have yet to have somebody solidly
Exactly right. Sometimes it's nice to have a virtual interface whose status
is not tied directly to a physical interface. We've mentioned several
configurations where this is the case. From the routers perspective it may
have a couple of special properties, since it's virtual, but it's still just
Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
MADMAN
Sent: 05 August 2003 19:47
To: [EMAIL PROTECTED]
Subject: Re: Loopback Interface [7:73305]
I think your thinking way too hard about this;) A loobback is
nothing more than a logical interface as opposed to a physical
You gentlemen have pointed out some good uses for loopback interfaces.
However, my dilema still remains that I have yet to have somebody solidly
explain loopback interfaces in a way that my simple mind can understand. I
have also been unsuccessful in finding any website that accomplish this.
Any
I think your thinking way too hard about this;) A loobback is
nothing more than a logical interface as opposed to a physical
interface. As far as the routing process is concerned it's just another
interface. Don't know how to articulate it any further.
Dave
Robert Edmonds wrote:
You
terminate iBGP sessions on
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I know the loopback interface is useful for assigning the router ID. Is
there any other purpose?
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when doing unnumbered interfaces
routing via loopbacks. Virtual templates, dialer interfaces etc...
I use loopbacks for many testing reasons.
load balancing and redundancy via BGP
use as peer in DLSW for redundancy/stability
generate routes
Those are a couple I can think of off
To monitor the router, since its up/up if the router is up.
Larry Letterman
Cisco Systems
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
DeVoe, Charles (PKI)
Sent: Thursday, July 31, 2003 12:16 PM
To: [EMAIL PROTECTED]
Subject: Loopback Interface
]
Subject: Loopback Interface [7:73305]
I know the loopback interface is useful for assigning the
router ID. Is
there any other purpose?
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7i=73316t=73305
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our remote routers are configured to do ddr through the loopback interface.
-Original Message-
From: Larry Letterman [mailto:[EMAIL PROTECTED]
Sent: Thursday, July 31, 2003 1:40 PM
To: [EMAIL PROTECTED]
Subject: RE: Loopback Interface [7:73305]
To monitor the router, since its up/up
are configured to do ddr through the loopback interface.
-Original Message-
From: Larry Letterman [mailto:[EMAIL PROTECTED]
Sent: Thursday, July 31, 2003 1:40 PM
To: [EMAIL PROTECTED]
Subject: RE: Loopback Interface [7:73305]
To monitor the router, since its up/up if the router is up.
Larry
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