Conditional default route - RIP

[paul driver]

Hello,

I am tring to inject a default route in RIP v2 with a condition of only if

Int Loopback0 up

int loopback 1 down

Now i can successfully do this with any FAKE route other than 0.0.0.0 , when i use 0.0.0.0 it initally works until the the loopback1 interface is enabled and then shutdown again to meet the boolan condition.

R3 config:

track 3 list boolean and

object 1

object 2 not

interface Loopback0

ip address 3.3.3.3 255.255.255.0

interface Loopback1

ip address 33.33.33.33 255.255.255.0

shutdown

track 1 ip route 3.3.3.0 255.255.255.0 reachability

track 2 ip route 33.33.33.0 255.255.255.0 reachability

ip route 0.0.0.0 0.0.0.0 Null0 track 3

ip prefix-list Null permit 0.0.0.0/0

router rip

version 2

network 10.0.0.0

default-information originate route-map default

no auto-summary

route-map default permit 10
match ip address prefix-list Null

R3#sh track

Track 1

  IP route 3.3.3.0 255.255.255.0 reachability

  Reachability is Up (connected)

    1 change, last change 00:43:39

  Delay up 2 secs, down 2 secs

  First-hop interface is Loopback0

Track 2

  IP route 33.33.33.0 255.255.255.0 reachability

  Reachability is Down (no route)

    17 changes, last change 00:14:06

  Delay up 2 secs, down 2 secs

  First-hop interface is unknown

Track 3

  List boolean and

  Boolean AND is Up

    30 changes, last change 00:14:06

    object 1 Up

    object 2 not Down

  Tracked by:

    STATIC-IP-ROUTING 0

R1#sh ip route rip | in 0.0.0.0/0

R2#sh ip route rip | in 0.0.0.0/0

Fake route other than 0.0.0.0

R3#

ip route 100.100.100.100 255.255.255.255 Null0 track 3

ip prefix-list Null permit seq 5 100.100.100.100/32

R1#sh ip route rip | in 0.0.0.0/0

R*   0.0.0.0/0 [120/1] via 10.1.234.3, 00:00:06, FastEthernet0/0

R2#sh ip route rip | in 0.0.0.0/0

R*   0.0.0.0/0 [120/1] via 10.1.234.3, 00:00:15, FastEthernet0/0

what am I missing, or not referancing here?

res

Paul

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Thanks.       

[cadet alain]

Hi,

this is what I did and it works:

R1(config-if)#do sh run | s ip prefix|route-map|track|router rip

track 1 interface Loopback0 line-protocol

track 2 interface Loopback1 line-protocol

track 3 list boolean and

object 1

object 2 not

router rip

version 2

network 10.0.0.0

default-information originate route-map DEFAULT-ROUTE

no auto-summary

ip route 169.254.0.0 255.255.0.0 Null0 track 3

ip prefix-list test seq 5 permit 169.254.0.0/16

route-map DEFAULT-ROUTE permit 10

match ip address prefix-list test

Regards

Alain

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[paul driver]

Hello

Thanks for the reply -

I also  get the same result with any FAKE route I use, APART from when try using

ip route 0.0.0.0 0.0.0.0 Null0 track 3

ip prefix-list Null permit 0.0.0.0/0

res

Paul

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Thanks.

[cadet alain · Accepted solution]

Hi,

if I redistribute the static default pointing to null0 and track this route then it works:

R1(config-if)#do sh run | s ip route|track|route-map|ip prefix|router rip

track 1 interface Loopback0 line-protocol

track 2 interface Loopback1 line-protocol

track 3 list boolean and

object 1

object 2 not

router rip

version 2

redistribute static route-map DEFAULT-ROUTE

network 10.0.0.0

default-information originate route-map DEFAULT-ROUTE

no auto-summary

ip route 0.0.0.0 0.0.0.0 Null0 track 3

ip prefix-list test seq 5 permit 0.0.0.0/0

route-map DEFAULT-ROUTE permit 10

match ip address prefix-list test

route-map DISTR permit 10

match interface Null0

Regards

Alain

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[paul driver]

Hello

It indeed does -..NOW looking back at my config I also tried redistribute the static route-map but my reference to the route-map was wrong!

instead of defaulti was referencing Default -hence I concluded that didn't work either.

Appreciate the assistance

res

Paul

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Thanks.