From: Plank, Jason (JPlank@concordefs.com)
Date: Mon Apr 17 2006 - 09:53:59 GMT-3
Read the static route section of tcp/ip volume 1. When you point a static
out an interface the static is shows as a connected route since the IOS
thinks that a static pointing out an interface = connected. Keep in mind the
huge downfall of doing this on a multi-point / multi-access network.
-------------------
Jason Plank
Network Engineer
101 Bellevue Parkway
Wilmington, DE 19809
E-mail: JPlank@concordefs.com
Phone: 302-793-5913
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Radioactive Frog
Sent: Monday, April 17, 2006 8:43 AM
To: ccielab
Subject: Static Routes AD
Hi Group,
Theoitcally all static routes have an administrative distance of 1, but
something strange happening while doing it practically.
It comes and shows the AD is directly connected , hence its 0 (zero).
See the below configs
1) when I am issuing the command
London(config)#
London(config)#ip route 0.0.0.0 0.0.0.0 s0/0
then the output of 'show ip route' is as below:-
London#show 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 0.0.0.0 to network 0.0.0.0
Network 192.168.1.0 has 5 subnets
R 192.168.1.0/27 [120/1] via 192.168.1.33 00:00:03 S0/0
C 192.168.1.32/27 is directly connected to Serial0/0
R 192.168.1.64/27 [120/1] via 192.168.1.33 00:00:03 S0/0
C 192.168.1.96/27 is directly connected to FastEthernet0/0
R 192.168.1.128/27 [120/2] via 192.168.1.33 00:00:03 S0/0
S* 0.0.0.0/0 is directly connected to Serial0/0
London#
Note: it shows Directly connected hence the administrative distance is ZERO.
But when I issue the below command (static routes)
London(config)#
London(config)#no ip route 0.0.0.0 0.0.0.0 s0/0
London(config)#
London(config)#ip route 0.0.0.0 0.0.0.0 192.168.1.33
London(config)#
The show ip route comes with :
London(config)#
London#show 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 192.168.1.33 to network 0.0.0.0
Network 192.168.1.0 has 5 subnets
R 192.168.1.0/27 [120/1] via 192.168.1.33 00:00:01 S0/0
C 192.168.1.32/27 is directly connected to Serial0/0
R 192.168.1.64/27 [120/1] via 192.168.1.33 00:00:01 S0/0
C 192.168.1.96/27 is directly connected to FastEthernet0/0
R 192.168.1.128/27 [120/2] via 192.168.1.33 00:00:01 S0/0
S* 0.0.0.0/0 [1/0] via 192.168.1.33 00:00:30 S0/0
London#
Note: here its showing as per the books and theory. but in above static
route it shows directly connected (zero ad).
Can anyone shed light on this ?
Frog..
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