From: Ramesh Ramasamy (ramesh_ramasamy@xxxxxxxxxxx)
Date: Thu Apr 26 2001 - 18:44:34 GMT-3
Thanks to all of you for detailed note on this.
Regards,
Ramesh.
>From: "Roderick Ta" <rta@nortelnetworks.com>
>Reply-To: "Roderick Ta" <rta@nortelnetworks.com>
>To: Walter Chen <wchen@iloka.com>, "'Ramesh Ramasamy'"
><ramesh_ramasamy@hotmail.com>, ccielab@groupstudy.com
>Subject: RE: ospf authentication-NULL?
>Date: Thu, 26 Apr 2001 17:07:03 -0400
>
>You need the same authentication on all interfaces
>in the same area. So, normally you don't want to
>disable authentication once it started. However,
>authentication sometimes extend to more than the
>area you explicitly defined. For example, virtual
>link. In this case, you have to manually disable
>authentication on an interface you did not manually
>turned on. :)
>
>Roderick Ta
>
>
>-----Original Message-----
>From: Walter Chen [mailto:wchen@iloka.com]
>Sent: Thursday, April 26, 2001 3:37 PM
>To: 'Ramesh Ramasamy'; ccielab@groupstudy.com
>Subject: RE: ospf authentication-NULL?
>
>
>You use this interface configuration command to "null" the authentication
>requirement configured for an area. Your Q#2 is correct that if you
>configured an OSPF area for authentication, then all interfaces that belong
>to this area have to be configured for authentication. If you do not want
>to do authentication for a particular interface because, say, the other
>side
>dose not know how to do md5 authentication, you can now use "ip ospf authen
>null" command. However, you will have to disable authentication on all
>other OSPF interfaces connected to this interface.
>
>BTW, unlike BGP, OSPF assignment is on an interface by interface basis
>instead of a router by router basis. So, "all the routers in that area"
>does not convey an accurate picture.
>
>Walter
>
>-----Original Message-----
>From: Ramesh Ramasamy [mailto:ramesh_ramasamy@hotmail.com]
>Sent: Thursday, April 26, 2001 2:17 PM
>To: ccielab@groupstudy.com
>Subject: ospf authentication-NULL?
>
>
>Hi,
>
>Question#1: When do i use 'ip osp authen NULL' command?
>
>Question#2:I was trying to understand the idea behind this NULL?.
>If i have an area x enabled for authentication, then all
>the routers in that area must be doing authentication -
>is my understanding, am i correct?
>Thanks,
>Ramesh.
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:29:58 GMT-3