Inverse ARP does not work on subinterfaces. The thought process of point-to-point is different than multipoint. In a multipoint interface, you technically aren't sure exactly which PVC represents the other side which is why you need to do an L3-L2 lookup (either static map or inverse arp). In a point-to-point environment, there are logically only two devices. Either you, or the other side! So no lookup is necessary since the assumption is "if it's not my address it must be yours". HTH,
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE-M #153, JNCIS-ER, CISSP, et al. CCSI/JNCI-M/JNCI-ER VP - Technical Training - IPexpert, Inc. IPexpert Sr. Technical Instructor A Cisco Learning Partner - We Accept Learning Credits! [EMAIL PROTECTED] Telephone: +1.810.326.1444 Fax: +1.810.454.0130 http://www.ipexpert.com _____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of GAURAV MADAN Sent: Friday, February 15, 2008 8:00 AM To: [email protected] Subject: [OSL | CCIE_RS] Frame relay point to point Hi All I have a basic doubt in FR point to point sub interface . Can I somehow make use of inverse arp in case of point to point sub interface . Example : R1 ------- FR Switch ------ R2 . Switch is properly configured . I mean to ask that if I give " frame-relay interface-dlci " under sub-int .. this works .. Is there a way to lear the PVC dynamically ? I know we can not make use of " map "under point -to -point sub-interface .. Gaurav Madan.
