To Passive or Not to Passive [7:24771]

2001-10-31 Thread McCallum, Robert

Dear all,

Before I take the leap into the lab (2 weeks to go now), I have a question
which has dogged me for a while now.  Scenario below.


Router 1  has the following interfaces, Lo0, Eth0/0, S0/0, S0/1 and say
Fast0/1.

Router 2 has the following interfaces Lo0, Lo1, Eth 0/1, S0/0.

Between Router 1 (s0/0) and Router 2 (s0/0) we are running say OSPF.  On
router 1 (e0/0 and s0/1) we are running RIP.
On Router 2 (e0/1 and lo1) we are also running Rip.  

Router 1 (lo0, s0/1) and Router 2 (lo0) are running Eigrp.

Now for the questions

1. On router 1 OSPF process is running  Q: should I put lo0,e0/0, fast0/1
and s0/1 as passive interface ???  This worries me quite a bit as the
argument of if you dont put the network command under ospf then ospf will
not run on that interface...BUT I have been told that you should ALWAYS put
every
in use interface into passive if it is not being used under the routing
process.

2.  This is not a question but a sanity check that for EIGRP and RIP then
the norm rules of passive interfaces apply.

Thanks for anyones help in clearing this annoying matter up.

Robert McCallum
Ext 730 3448
DDI : 01415663448
Mobile : 07818002241




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Re: To Passive or Not to Passive [7:24771]

2001-10-31 Thread Henry D.


In regards to Q number one. I think it would be much better not to
specify passive interface under OSPF as long as your network statement
does not include the IP of the interface in question. The reason for that,
at least
in my head, is that if I were a proctor I might think you don't understand
how
OSPF works.
For question 2, passive should be a norm on interfaces you don't want to
form
neighboorship or sending routing updates. Make sure you understand that
passive
works differenty for RIP than for EIGRP.

McCallum, Robert [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 Dear all,

 Before I take the leap into the lab (2 weeks to go now), I have a question
 which has dogged me for a while now.  Scenario below.


 Router 1  has the following interfaces, Lo0, Eth0/0, S0/0, S0/1 and say
 Fast0/1.

 Router 2 has the following interfaces Lo0, Lo1, Eth 0/1, S0/0.

 Between Router 1 (s0/0) and Router 2 (s0/0) we are running say OSPF.  On
 router 1 (e0/0 and s0/1) we are running RIP.
 On Router 2 (e0/1 and lo1) we are also running Rip.

 Router 1 (lo0, s0/1) and Router 2 (lo0) are running Eigrp.

 Now for the questions

 1. On router 1 OSPF process is running  Q: should I put lo0,e0/0, fast0/1
 and s0/1 as passive interface ???  This worries me quite a bit as the
 argument of if you dont put the network command under ospf then ospf will
 not run on that interface...BUT I have been told that you should ALWAYS
put
 every
 in use interface into passive if it is not being used under the routing
 process.

 2.  This is not a question but a sanity check that for EIGRP and RIP then
 the norm rules of passive interfaces apply.

 Thanks for anyones help in clearing this annoying matter up.

 Robert McCallum
 Ext 730 3448
 DDI : 01415663448
 Mobile : 07818002241




 Message Posted at:
 http://www.groupstudy.com/form/read.php?f=7i=24771t=24771
 --
 FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
 Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]