Hello,
I am trying to redistribute a default route into my Eigrp domain by using
the default-network command. This network that I specify is the serial
network that connects my border router to the ISP network. It only worked
the first time and has not worked again. Why, I wonder?
Anyway, here are the different ways that I used to inject a default
route....very interesting!!
Anyone with a good explanation?
Redistribution of a default route into Eigrp:
On the border router :
RTF# ip route 0.0.0.0 0.0.0.0 s0
ip route 0.0.0.0 0.0.0.0 s1
ip default-network 144.228.0.0
ip default-network 144.223.0.0
This injects a default route to all the other routers but only the first
time....Why?
(I missed the output here....wish I had copied it had I known it would not
work again!)
______________________________________________________________________
Again, On the border router :
RTF# ip route 0.0.0.0 0.0.0.0 s0
ip route 0.0.0.0 0.0.0.0 s1
router eigrp 100
redistribute static metric 1536 20000 255 1 1500
This does NOT inject a default route to the other routers.......Why?
______________________________________________________________________
Again, On the border router :
RTF# ip route 0.0.0.0 0.0.0.0 s0
ip route 0.0.0.0 0.0.0.0 s1
router eigrp 100
network 0.0.0.0
This injects a default route into the other routers:
D* 0.0.0.0/0 [90/7324160] via 212.1.22.98, 00:08:10, Serial0/0
Only a D* because network 0.0.0.0 is a part of Eigrp
______________________________________________________________________
Again, On the border router :
RTF# ip route 0.0.0.0 0.0.0.0 s0
ip route 0.0.0.0 0.0.0.0 s1
router eigrp 100
redistribute static route-map defaultout
network 150.50.0.0
network 172.16.0.0
no auto-summary
eigrp log-neighbor-changes
access-list 1 permit 0.0.0.0
route-map defaultout permit 10
match ip address 1
This injects a default route into the other routers:(even without specifying
the metrics)...Why?
D*EX 0.0.0.0/0 [170/2716160] via 212.1.22.98, 00:04:44, Serial0/0
D*EX because a static route has been redistributed into Eigrp
______________________________________________________________________
Again, On the border router :
RTF# ip route 0.0.0.0 0.0.0.0 s0
ip route 0.0.0.0 0.0.0.0 s1
router eigrp 100
redistribute static
network 150.50.0.0
network 172.16.0.0
no auto-summary
eigrp log-neighbor-changes
This also works without specifying any metrics......why?
D*EX 0.0.0.0/0 [170/2716160] via 212.1.22.98, 00:01:56, Serial0/0
______________________________________________________________________
Again, On the border router :
RTF# ip route 0.0.0.0 0.0.0.0 s0
ip route 0.0.0.0 0.0.0.0 s1
RTF(config)#ip default-network 144.228.0.0
RTF(config)#ip default-network 144.223.0.0
No default route injected into any router.....why?
______________________________________________________________________
Again, On the border router :
RTF# ip route 0.0.0.0 0.0.0.0 s0
ip route 0.0.0.0 0.0.0.0 s1
router eigrp 100
redistribute static metric 1 1 1 1 1
This injects a default route into the other routers when specifying a metric
of 1 1 1 1 1.....Why?
D*EX 0.0.0.0/0 [170/2560537856] via 212.1.22.98, 00:00:05, Serial0/0
______________________________________________________________________
Again, On the border router :
RTF# ip route 0.0.0.0 0.0.0.0 s0
ip route 0.0.0.0 0.0.0.0 s1
RTF(config)#router eigrp 100
RTF(config-router)#no redi static
The default route goes away on the other routers....which is OK?
______________________________________________________________________
So how does the default-network command work???
My head is hurting now!!
_________________________________________________________________
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