Hi Erik,
I am just trying this out at this stage. For discussion sake, say I
want to get from r3 to network 2.0.0.0 which is on ethernet of R5:
r3-s0/0----------primary--------s2 r5 ---e1 (2.0.0.0/8)
di1-----------backup-------di1
till using unnumber loop 0 for both primary and backup int.
If static route is to be use, what should it look like?
Your first solution below is using floating static, which I know it
would work. But is there a way to do it without floating static?
Cause if floating static is use, the "backup" command seems
unneccessary.
Not exactly sure what you mean on the second solution, could you
provide sample config?
I got eigrp instead of static route to work earlier, was a bit
surprise to see r3, r5 form neighbor even though they're on different
subnet. r3 (3.0.0.3) & r5 (5.0.0.5). does anyone know if this is
right?
ClueLess.
On 21 Sep 2000 12:34:51 -0400, [EMAIL PROTECTED] ("Erik Mintz")
wrote:
>What are you trying to backup here? I don't see any routing. Start with a
>working primary first and I can probably give you suggestions for a
>solution.
>Roughly, what you need are two static routes with different weights so the
>primary is favored, and the backup is much more costlier, or, set the dialer
>as the default route with a static 0.0.0.0 pointing to the primary, that
>way, when the primary disappears, the static leaves the table and the dialer
>goes up. remember to write an access list on the dialer to prevent dialing
>for RIP updates, etc. depending on what type of traffic you have traversing
>the router.
>
>
>-Erik
>
>----- Original Message -----
>From: "Clue Less" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Thursday, September 21, 2000 10:25 AM
>Subject: isdn backup
>
>
>| Greetings all,
>|
>| Got a question on routing with ISDN backup. Could
>| someone shed some light on how to properly implement
>| the backup command with routing?
>|
>| I'm using the backup command, and ip unnumber for both
>| primary and backup interfaces.
>|
>| int loop 0 R3 int s0/0---------primary------int s2 R5
>| int loop 0 (5.0.0.5)
>| int di1-----------backup-------int di1
>|
>| Below is config.
>|
>| What static route can I use to complete the routing to
>| the remote end? Because unnumbered addresses is use,
>| I'm unsure what the static route should look like.
>| The only thing I can think of is using floating
>| static, but that sort of defeat the purpose of the
>| backup command.
>|
>|
>| ClueLess
>|
>| !
>| hostname r3
>| !
>| interface Loopback0
>| ip address 3.0.0.3 255.255.255.0
>| no ip directed-broadcast
>| !
>| interface Serial0/0
>| backup interface Dialer1
>| ip unnumbered Loopback0
>| no ip directed-broadcast
>| clockrate 64000
>| !
>| interface BRI0/0
>| no ip address
>| no ip directed-broadcast
>| encapsulation ppp
>| dialer pool-member 3
>| isdn switch-type basic-ts013
>| isdn answer1 33333333:3
>| ppp authentication chap
>| !
>| interface Dialer1
>| ip unnumbered Loopback0
>| no ip directed-broadcast
>| encapsulation ppp
>| dialer remote-name r5
>| dialer string 55555555:5
>| dialer pool 3
>| dialer-group 1
>| ppp authentication chap
>| !
>| dialer-list 1 protocol ip permit
>|
>| r3#sh ip route
>| Codes: C - connected, S - static, I - IGRP, R - RIP, M
>| - mobile, B - BGP
>| D - EIGRP, EX - EIGRP external, O - OSPF, IA -
>| OSPF inter area
>| N1 - OSPF NSSA external type 1, N2 - OSPF NSSA
>| external type 2
>| E1 - OSPF external type 1, E2 - OSPF external
>| type 2, E - EGP
>| i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS
>| level-2, * - candidate default
>| U - per-user static route, o - ODR
>|
>| Gateway of last resort is not set
>|
>| 3.0.0.0/24 is subnetted, 1 subnets
>| C 3.0.0.0 is directly connected, Loopback0
>| r3#
>|
>
>
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