From: Edison Ortiz (edisonmortiz@gmail.com)
Date: Thu Apr 19 2007 - 17:29:16 ART
Isn't that what I said ?
----- Original Message -----
From: "Steven van Jaarsveld" <Steven.vanJaarsveld@btgroup.co.za>
To: "Edison Ortiz" <edisonmortiz@gmail.com>; <ccielab@groupstudy.com>
Sent: Thursday, April 19, 2007 4:16 PM
Subject: RE: Passive-Interface Command (EIGRP)
The interface does not advertise the routes.
The router advertises the subnet for the passive interface out of the
other interfaces that have neighborships to other EIGRP Routers.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Edison Ortiz
Sent: 19 April 2007 09:58 PM
To: ccielab@groupstudy.com
Subject: Re: Passive-Interface Command (EIGRP)
It will advertise routes if it has neighbors via other interfaces.
----- Original Message -----
From: "Vince Mashburn" <cciegroupstudy@gmail.com>
To: <graham@cisco-engineer.com>
Cc: <ccielab@groupstudy.com>
Sent: Thursday, April 19, 2007 3:40 PM
Subject: Re: Passive-Interface Command (EIGRP)
>I don't see how it could still advertise routes since neighbor
>relationships
> won't be formed with passive interface configured. EIGRP cannot
advertise
> routes to devices that it does not have neighbor adjacencies to.
>
> On 4/19/07, graham@cisco-engineer.com <graham@cisco-engineer.com>
wrote:
>>
>> Group,
>>
>>
>>
>> I am getting some conflicting info from the Doc-CD on the
>> Passive-interface
>> command;
>>
>>
>>
>> http://www.cisco.com/univercd
>> <
>>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hi
rp_
>> r/rte_eih.htm#wp1000250>
>> /cc/td/doc/product/software/ios124/124cr/hirp_r/rte_eih.htm#wp1000250
>>
>>
>>
>> The link above states
>>
>>
>>
>> Configuring the passive-interface command suppresses all incoming and
>> outgoing routing updates and hello messages. EIGRP neighbor
adjacencies
>> cannot be established or maintained over an interface that is
configured
>> as
>> passive. "
>>
>>
>>
>> Yet this link;
>>
>>
>>
>> http://www.cisco.com/univercd
>> <
>>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hi
rp_
>> r/rte_pih.htm#wp1124419>
>> /cc/td/doc/product/software/ios124/124cr/hirp_r/rte_pih.htm#wp1124419
>>
>>
>>
>> "Enhanced Interior Gateway Routing Protocol (EIGRP) is disabled on an
>> interface that is configured as passive although it advertises the
route.
>> "
>>
>>
>>
>> Perhaps its me being silly, I always believed the first quote was
correct
>> for EIGRP, and looking at Debugs on a network would make it true, but
>> then
>> I
>> decided to hub and "ethereal/wireshark" the packets outgoing and saw
IP
>> protocol 88 being sent (EIGRP)
>>
>>
>>
>> Does someone have an authoritative answer on this one?
>>
>>
>>
>>
>>
>> Thanks
>>
>>
>>
>> Graham
>>
>>
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