Hi Thiru, You are not precluded from using the OSPFv2 Instance ID for this purpose. However, we already have RFC 5185 to allow a single interface to be in multiple areas (note that no secondary IP address is necessary):
http://www.rfc-editor.org/rfc/rfc5185.txt The primary application is supporting multiple OSPF instances using the same link. One application is OSPF Transport Instance: http://www.ietf.org/id/draft-ietf-ospf-transport-instance-07.txt Thanks, Acee On Oct 29, 2011, at 1:04 PM, thiruma valavan wrote: Hi OSPF group members, Is this the objective of using Instance Id in OSPFv2. Instance id will be used If interface having more than one addresses, so we need to configure different subnets in router interface (Using secondary address cli command). So we can connect multiple areas on single link, No need different physical connection for each area. Thanks, Thiru On Fri, Oct 28, 2011 at 12:30 AM, <[email protected]<mailto:[email protected]>> wrote: If you have received this digest without all the individual message attachments you will need to update your digest options in your list subscription. To do so, go to https://www.ietf.org/mailman/listinfo/ospf Click the 'Unsubscribe or edit options' button, log in, and set "Get MIME or Plain Text Digests?" to MIME. You can set this option globally for all the list digests you receive at this point. Send OSPF mailing list submissions to [email protected]<mailto:[email protected]> To subscribe or unsubscribe via the World Wide Web, visit https://www.ietf.org/mailman/listinfo/ospf or, via email, send a message with subject or body 'help' to [email protected]<mailto:[email protected]> You can reach the person managing the list at [email protected]<mailto:[email protected]> When replying, please edit your Subject line so it is more specific than "Re: Contents of OSPF digest..." Today's Topics: 1. New Version Notification - draft-ietf-ospf-auth-trailer-ospfv3-08.txt (Acee Lindem) 2. Re: New Version Notification - draft-ietf-ospf-auth-trailer-ospfv3-08.txt (Acee Lindem) ---------------------------------------------------------------------- Message: 1 Date: Wed, 26 Oct 2011 19:48:42 -0400 From: Acee Lindem <[email protected]<mailto:[email protected]>> To: OSPF List <[email protected]<mailto:[email protected]>> Subject: [OSPF] New Version Notification - draft-ietf-ospf-auth-trailer-ospfv3-08.txt Message-ID: <[email protected]<mailto:[email protected]>> Content-Type: text/plain; charset="us-ascii" This version includes changes in response to the external reviews that have taken place since we completed WG last call. A few things have been clarified and the following two items have been added: 1. Mitigation of Cross Protocol Attacks by appending a protocol specific byte to the key. This will prevent replay attacks when the same key is used by multiple protocols (and the sets of valid input packets intercept). See sections 4.4 and 4.5. 2. Recommendations for authentication key selection have been added to the "Security Considerations". See section 6. Links to be the new version and a nicely annotated diff with the previous version are included in the forwarded E-mail below. Thanks, Acee Begin forwarded message: From: "[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>" <[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>> Date: October 26, 2011 6:19:35 PM EDT To: "[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>" <[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>>, "[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>" <[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>>, "[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>" <[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>> Subject: New Version Notification - draft-ietf-ospf-auth-trailer-ospfv3-08.txt New version (-08) has been submitted for draft-ietf-ospf-auth-trailer-ospfv3-08.txt. http://www.ietf.org/internet-drafts/draft-ietf-ospf-auth-trailer-ospfv3-08.txt Diff from previous version: http://tools.ietf.org/rfcdiff?url2=draft-ietf-ospf-auth-trailer-ospfv3-08 IETF Secretariat. ------------------------------ Message: 2 Date: Wed, 26 Oct 2011 19:53:33 -0400 From: Acee Lindem <[email protected]<mailto:[email protected]>> Cc: OSPF List <[email protected]<mailto:[email protected]>> Subject: Re: [OSPF] New Version Notification - draft-ietf-ospf-auth-trailer-ospfv3-08.txt Message-ID: <[email protected]<mailto:[email protected]>> Content-Type: text/plain; charset="us-ascii" Of course, I meant "intersect" rather than "intercept" below. In other words, a packet from one protocol could potentially also represent a valid packet in another protocol and be replayed. Thanks, Acee On Oct 26, 2011, at 7:48 PM, Acee Lindem wrote: > This version includes changes in response to the external reviews that have > taken place since we completed WG last call. A few things have been clarified > and the following two items have been added: > > 1. Mitigation of Cross Protocol Attacks by appending a protocol specific > byte to the key. This will prevent replay attacks when the same key is used > by multiple protocols (and the sets of valid input packets intercept). See > sections 4.4 and 4.5. > > 2. Recommendations for authentication key selection have been added to the > "Security Considerations". See section 6. > > Links to be the new version and a nicely annotated diff with the previous > version are included in the forwarded E-mail below. > > Thanks, > Acee > > > > > Begin forwarded message: > > From: > "[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>" > > <[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>> > Date: October 26, 2011 6:19:35 PM EDT > To: > "[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>" > > <[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>>, > > "[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>" > > <[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>>, > > "[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>" > > <[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>> > Subject: New Version Notification - draft-ietf-ospf-auth-trailer-ospfv3-08.txt > > New version (-08) has been submitted for > draft-ietf-ospf-auth-trailer-ospfv3-08.txt. > http://www.ietf.org/internet-drafts/draft-ietf-ospf-auth-trailer-ospfv3-08.txt > > > Diff from previous version: > http://tools.ietf.org/rfcdiff?url2=draft-ietf-ospf-auth-trailer-ospfv3-08 > > IETF Secretariat. > > _______________________________________________ > OSPF mailing list > [email protected]<mailto:[email protected]> > https://www.ietf.org/mailman/listinfo/ospf ------------------------------ _______________________________________________ OSPF mailing list [email protected]<mailto:[email protected]> https://www.ietf.org/mailman/listinfo/ospf End of OSPF Digest, Vol 68, Issue 8 *********************************** _______________________________________________ OSPF mailing list [email protected]<mailto:[email protected]> https://www.ietf.org/mailman/listinfo/ospf _______________________________________________ OSPF mailing list [email protected] https://www.ietf.org/mailman/listinfo/ospf
