IPSec Site to Site doesn't support Multicast. EIGRP with neighbor statements would work over it. But you are missing the point of other topologies that can use Multicast such as IPsec over GRE or DMVPN for Point to Multipoint.
Regards, Tyson Scott - CCIE #13513 R&S and Security Technical Instructor - IPexpert, Inc. Telephone: +1.810.326.1444 Cell: +1.248.504.7309 Fax: +1.810.454.0130 Mailto: [email protected] Join our free online support and peer group communities: <http://www.IPexpert.com/communities> http://www.IPexpert.com/communities IPexpert - The Global Leader in Self-Study, Classroom-Based, Video On Demand and Audio Certification Training Tools for the Cisco CCIE R&S Lab, CCIE Security Lab, CCIE Service Provider Lab , CCIE Voice Lab and CCIE Storage Lab Certifications. From: [email protected] [mailto:[email protected]] On Behalf Of Network Specialist Sent: Tuesday, August 04, 2009 5:31 AM To: [email protected] Subject: [OSL | CCIE_RS] Can IPSec work with routing protocol ? Hi : I was digging into IPSec and always I read that IPSec can not be used with Routing protocol. But today when I established site to site VPN with EIGRP running between them , It worked. I was able to encrypt all the packets. I wonder how IPSec worked with EIGRP. I really dont know and now I am in total confusion. Could anyone please share , can IPSec work with Routing protocol without GRE ? Sincerely, Taqdir Singh 91-9911709496 <http://sigads.rediff.com/RealMedia/ads/click_nx.ads/www.rediffmail.com/sign atureline....@middle?>
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