sounds good to me.
Use of extended ACL is recommended.
From: [email protected]
To: [email protected]
Date: Tue, 18 Aug 2009 09:06:25 -0400
Subject: [OSL | CCIE_RS] Help with OSPF
Please help to verify these scenarios
=======Scenario 1==============
-----------R1---------------------
int f0/0
ip address 10.10.10.1 255.255.255.0
int f0/1
ip address 10.10.20.1 255.255.255.0
router ospf 1
no auto
network 10.10.10.0 0.0.0.255
-----------------------------------
"network" is controlling which interface to join ospf. Which mean int f0/1
wills not send or receive any ospf?
=======Scenario 2 ===============
-----------R1---------------------
int f0/0
ip address 10.10.10.1 255.255.255.0
int f0/1
ip address 10.10.20.1 255.255.255.0
router ospf 1
no auto
network 10.10.0.0 0.0.255.255
passive int f0/1
-----------------------------------
"network" will allow 10.10/16 to join ospf, however "passive int f0/1" wills
stop the int f0/1 to send ospf.
======== Scenario 3 ============
-----------R1---------------------
int f0/0
ip address 10.10.10.1 255.255.255.0
int f0/1
ip address 10.10.20.1 255.255.255.0
access-group 1 out
access-list 1 deny ip 224.0.0.5 any
access-list 1 deny ip 224.0.0.6 any
access-list 1 deny ip any 224.0.0.5
access-list 1 deny ip any 224.0.0.6
access-list 1 permit ip any
router ospf 1
no auto
network 10.10.0.0 0.0.255.255
-----------------------------------
"network" will allow 10.10/16 to join ospf, however "access-list 1" wills stop
the int f0/1 to send or receive ospf.
======== Scenario 4 =============
-----------R1---------------------
int f0/0
ip address 10.10.10.1 255.255.255.0
int f0/1
ip address 10.10.20.1 255.255.255.0
access-group 1 out
access-list 1 deny ospf any any
access-list 1 permit ip any
router ospf 1
no auto
network 10.10.10.0 0.0.255.255
-----------------------------------
"network" will allow 10.10/16 to join ospf, however "access-list 1" deny ospf
protocol.
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