Hi Adrian,
Thanks.You explained very clearly especially for how to create static route
and advertise this as a default route.But without adding manuel static route
as far as I understood from your mail by using ip defalut-network a static
route has to be created automaticly.I was unable to create this static route
automaticly.Can it be change relase to releaase?
r5#conf t
Enter configuration commands, one per line. End with CNTL/Z.
r5(config)#ip de
r5(config)#ip def
r5(config)#ip default-n
r5(config)#ip default-network 9.9.9.9
r5(config)#end
r5#sh ip route
*Mar 2 07:05:22.796: %SYS-5-CONFIG_I: Configured from console by console
Codes: C - connected, S - static, 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
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static
route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
1.0.0.0/24 is subnetted, 1 subnets
D EX 1.1.1.0 [170/2560002816] via 20.0.0.1, 09:28:49, FastEthernet0/0
3.0.0.0/24 is subnetted, 1 subnets
D EX 3.3.3.0 [170/2560002816] via 20.0.0.1, 09:28:49, FastEthernet0/0
20.0.0.0/24 is subnetted, 1 subnets
C 20.0.0.0 is directly connected, FastEthernet0/0
10.0.0.0/24 is subnetted, 2 subnets
D EX 10.1.13.0 [170/2560002816] via 20.0.0.1, 09:28:49, FastEthernet0/0
D EX 10.11.11.0 [170/2560002816] via 20.0.0.1, 09:28:49, FastEthernet0/0
r5#
r5#
r5#conf t
Enter configuration commands, one per line. End with CNTL/Z.
r5(config)#int lo
r5(config)#int loopback 0
r5(config-if)#ip add
r5(config-if)#ip address
*Mar 2 07:05:41.412: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Loopback0, changed state to up9.9.9.9 255.255.255.0
r5(config-if)#end
r5#sh ip route
Codes: C - connected, S - static, 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
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static
route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
1.0.0.0/24 is subnetted, 1 subnets
D EX 1.1.1.0 [170/2560002816] via 20.0.0.1, 09:29:17, FastEthernet0/0
3.0.0.0/24 is subnetted, 1 subnets
D EX 3.3.3.0 [170/2560002816] via 20.0.0.1, 09:29:17, FastEthernet0/0
20.0.0.0/24 is subnetted, 1 subnets
C 20.0.0.0 is directly connected, FastEthernet0/0
9.0.0.0/24 is subnetted, 1 subnets
C 9.9.9.0 is directly connected, Loopback0
10.0.0.0/24 is subnetted, 2 subnets
D EX 10.1.13.0 [170/2560002816] via 20.0.0.1, 09:29:17, FastEthernet0/0
D EX 10.11.11.0 [170/2560002816] via 20.0.0.1, 09:29:17, FastEthernet0/0
r5#
*Mar 2 07:05:50.788: %SYS-5-CONFIG_I: Configured from console by console
On Tue, Jun 22, 2010 at 10:16 PM, Adrian Daniel Simionov <
[email protected]> wrote:
> I hope this example will make U understand how to configure this tricky
> command:
>
> I would like to advertise a default route of 9.9.9.99 to every eigrp
> router:
>
> First create a default static route with the classfull network U are
> trying to advertise:
>
> There are two methods for creating this static route:
>
> One is using the
> #ip default-network 9.9.9.9
> command
> Which will create a static route for you.
>
> Another method is by creating the static route by yourself.
>
> BB2#configure terminal
> Enter configuration commands, one per line. End with CNTL/Z.
> BB2(config)#ip route 9.0.0.0 255.0.0.0 9.9.9.99
> BB2(config)#end
> BB2#sh
> *Jun 22 21:42:42.851: %SYS-5-CONFIG_I: Configured from console by console
> BB2#sh ip route
> Codes: L - local, C - connected, S - static, 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
> i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
> ia - IS-IS inter area, * - candidate default, U - per-user static
> route
> o - ODR, P - periodic downloaded static route, + - replicated route
>
> Gateway of last resort is not set
>
> 10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
> C 10.0.0.0/24 is directly connected, FastEthernet0/0
> L 10.0.0.1/32 is directly connected, FastEthernet0/0
> C 10.10.10.0/24 is directly connected, FastEthernet0/0
> L 10.10.10.1/32 is directly connected, FastEthernet0/0
> BB2#
>
> As U can see this static route is not in the routing table. Because we
> don;t have a connected interface in this subnet. Now let;s add one:
>
> BB2(config-if)#ip address 9.9.9.9
> *Jun 22 21:44:41.251: %LINK-3-UPDOWN: Interface Loopback1, changed state to
> up
> *Jun 22 21:44:42.251: %LINEPROTO-5-UPDOWN: Line protocol on Interface
> Loopback1, changed state to up
> BB2(config-if)#ip address 9.9.9.9 255.255.255.0
> BB2(config-if)#end
> BB2#
> *Jun 22 21:44:48.771: %SYS-5-CONFIG_I: Configured from console by console
> BB2#sh ip route
> Codes: L - local, C - connected, S - static, 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
> i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
> ia - IS-IS inter area, * - candidate default, U - per-user static
> route
> o - ODR, P - periodic downloaded static route, + - replicated route
>
> Gateway of last resort is not set
>
> 9.0.0.0/8 is variably subnetted, 3 subnets, 3 masks
> S 9.0.0.0/8 [1/0] via 9.9.9.99
> C 9.9.9.0/24 is directly connected, Loopback1
> L 9.9.9.9/32 is directly connected, Loopback1
>
> As U can see, now we have this static route in the routing table. Now
> let;s mark this one as a candidate default route:
> The following command will ONLY work if we have a static route in the
> routing table
> (created with another ip default-network command or with ip route command)
> Why? Ask CISCO !
>
> BB2(config)#ip default-network 9.0.0.0
> BB2(config)#end
> BB2#sh i
> *Jun 22 21:46:03.119: %SYS-5-CONFIG_I: Configured from console by console
> BB2#sh ip route
> Codes: L - local, C - connected, S - static, 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
> i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
> ia - IS-IS inter area, * - candidate default, U - per-user static
> route
> o - ODR, P - periodic downloaded static route, + - replicated route
>
> Gateway of last resort is 9.9.9.99 to network 9.0.0.0
>
> S* 0.0.0.0/0 [1/0] via 9.9.9.99
> * 9.0.0.0/8 is variably subnetted, 3 subnets, 3 masks
> S* 9.0.0.0/8 [1/0] via 9.9.9.99
> C 9.9.9.0/24 is directly connected, Loopback1
> L 9.9.9.9/32 is directly connected, Loopback1
>
> Now this route is a default route for us, let;s make a check on eigrp
> neighbor BB1:
>
> BB1#sh ip route
> Codes: L - local, C - connected, S - static, 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
> i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
> ia - IS-IS inter area, * - candidate default, U - per-user static
> route
> o - ODR, P - periodic downloaded static route, + - replicated route
>
> Gateway of last resort is not set
>
> 10.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
> C 10.0.0.0/24 is directly connected, FastEthernet0/0
> L 10.0.0.2/32 is directly connected, FastEthernet0/0
> D 10.10.10.0/24 [90/30720] via 10.0.0.1, 00:54:29, FastEthernet0/0
>
> This router is not having a default candidate yet.
> For this to happen, we need to advertise this static route from BB2,
> which is a default candidate for BB2 only now, into eigrp, using
> redistribute static:
>
> BB2(config)#router eigrp 1
> BB2(config-router)#redistribute static
>
> And now let's check the routing table on BB1:
>
> BB1#sh ip route
> Codes: L - local, C - connected, S - static, 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
> i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
> ia - IS-IS inter area, * - candidate default, U - per-user static
> route
> o - ODR, P - periodic downloaded static route, + - replicated route
>
> Gateway of last resort is not set
>
> D*EX 9.0.0.0/8 [170/156160] via 10.0.0.1, 00:01:04, FastEthernet0/0
>
> Voila, this route is here, marked as a default candidate route.
>
> Hope this clarified everything about the usage of this command.
> _______________________________________________
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> visit www.ipexpert.com
>
_______________________________________________
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