From: Salau, Yemi (yemi.salau@siemens.com)
Date: Wed Jul 11 2007 - 07:28:58 ART
Me too George, wouldn't be an hypocrite to suggest otherwise. Like I
said, it depends on the school of thought you belong to.
But Cristian's question was if points will be deducted in the lab for
not using 0.0.0.0
Many Thanks
Yemi Salau
________________________________
From: George Roman [mailto:georgeroman@gmail.com]
Sent: Wednesday, July 11, 2007 11:22 AM
To: Salau, Yemi; ccielab@groupstudy.com
Subject: Re: do not send Eigrp Hello on interfaces
I will use 0.0.0.0 wildcard mask wherever possible because it gives you
granularity and flexibility in the same time.
Best Regards,
George
On 7/11/07, Salau, Yemi <yemi.salau@siemens.com> wrote:
Also this problem rise another one. What is the best way to
announce net
in a protocol?
"That will depend on the school of thought you follow"
Just to put the interface in the protocol with same command
(where the
protocol permit) or to announce the entire network?
A school of thought prefers matching specific interface, that
way you
can control on which interface routing protocols are "activated"
on, so
that when newer interfaces are configured under that subnet,
they would
not participate in the routing process especially when you don't
want to
allow them to.
What do you think about the grading in the real exam? I will get
the
points if i announce the /32 net. (of course if the task does
not
restrict me in any way, just says put this net/interface in the
protocol
domain)
This doesn't deduct your points I would imagine, but you need to
be
aware of this: if the interface has mask of /24 and you bring it
into
EIGRP, it's network will come in as /24 wether you use "network
x.x.x.x
0.0.0.0" or "network x.x.x.x 0.0.0.255"
But if the interface has a mask of /32, it's network will come
in as
/32. The only exception I can think of is bringing in loopback
interfaces into OSPF, those are treated as host routes by
default and
you need to made changes if required.
But the bottom line is, no one will deduct you points so far at
the end
of the day you activate the routing process on required
interfaces.
Many Thanks
Yemi Salau
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
Behalf Of
Cristian Ionescu
Sent: Wednesday, July 11, 2007 8:13 AM
To: Dan C
Cc: George Roman; Mark Mckillop (mmckillo);
ccielab@groupstudy.com
Subject: Re: do not send Eigrp Hello on interfaces
Thanks for all responses.
I think the optin with net x.x.x.x 0.0.0.0 is the right one. I
do not
think that ACL is the soltion.
Also this problem rise another one.
What is the best way to announce net in a protocol?
Just to put the interface in the protocol with same command
(where the
protocol permit) or to announce the entire network?
What do you think about the grading in the real exam? I will get
the
points if i announce the /32 net. (of course if the task does
not
restrict me in any way, just says put this net/interface in the
protocol
domain)
Thanks
Dan C wrote:
> Hi George,
>
> If you need to add any other interfaces into eigrp you will
need just
to use
> 0.0.0.0 for them again eg:
>
> router ei 100
> net 1.1.1.1 0.0.0.0
> net 1.1.2.1 0.0.0.0
>
> this way no hellos will be sent out but on those 2
interfaces.... You
can
> verify using debug eigrp packets hello
> Cheers,
> Dan
>
> On 7/10/07, George Roman <georgeroman@gmail.com> wrote:
>
>> You are right about that. if you put the wildcard mask of
0.0.0.0
only
>> that
>> interface will participate in eigrp process, but if you want
some
other
>> networks (on other interfaces) to get advertised into eigrp,
i think
the
>> only solution is to put those interfaces in eigrp and use
ACLs so you
will
>> not send hellos on them (ACLs because as Cristian said, the
>> passive-interface command is forbidden).
>>
>> George
>>
>> On 7/10/07, Mark Mckillop (mmckillo) < mmckillo@cisco.com>
wrote:
>>
>>> I think the point is to use the 0.0.0.0 in the network
statement to
>>> specify just the precise interfaces that you want enabled in
the
EIGRP
>>> process.
>>>
>>> i.e. network 150.1.1.1 0.0.0.0 -> Just the interface with
that
specific
>>> address
>>>
>>> Mark.
>>>
>>> -----Original Message-----
>>> From: nobody@groupstudy.com [mailto: nobody@groupstudy.com
<mailto:nobody@groupstudy.com> ] On Behalf
Of
>>> George Roman
>>> Sent: 10 July 2007 12:32
>>> To: Cristian Ionescu; ccielab@groupstudy.com
>>> Subject: Re: do not send Eigrp Hello on interfaces
>>>
>>> I think one of the options that you have to filter eigrp is
extended
acl
>>> (specify the protocol eigrp)
>>>
>>> George
>>>
>>> On 7/10/07, Cristian Ionescu <cristian.ionescu@omnilogic.ro>
wrote:
>>>
>>>> Hi
>>>>
>>>> I have a task where it says to not send eigrp hello on
interfaces
that
>>>>
>>>> are not part of the eigrp domain but not to use
passive-interface.
>>>> It is ok to use neighbor?
>>>> I have 4 routers on domain. I need to put in one router all
3 other
>>>> routers?
>>>>
>>>> If i put under the router eigrp x menu, network y.y.y.y
0.0.0.0
will
>>>> have the same result?
>>>>
>>>> Thanks
>>>>
>>>>
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