-= Cisco CCNA Diary =-

[coolnezz]

Inverse ARP

The Inverse Address Resolution Protocol, also called Inverse ARP, obtains Layer 3 addresses of other stations from Layer 2 addresses, such as the DLCI in Frame Relay networks. It is primarily used in Frame Relay and ATM networks, where Layer 2 addresses of VCs are sometimes obtained from Layer 2 signaling, and the corresponding Layer 3 addresses must be available before these VCs can be used. Whereas ARP resolves Layer 3 addresses to Layer 2 addresses, Inverse ARP does the opposite.


Dynamic Mapping

Dynamic address mapping relies on Inverse ARP to resolve a next hop network protocol address to a local DLCI value. The Frame Relay router sends out Inverse ARP requests on its PVC to discover the protocol address of the remote device connected to the Frame Relay network. The router uses the responses to populate an address-to-DLCI mapping table on the Frame Relay router or access server. The router builds and maintains this mapping table, which contains all resolved Inverse ARP requests, including both dynamic and static mapping entries.

[wire]

Just heard from people discussing about Router-On-A-Stick, what does it mean?
what advatanges & disadvantages on ROAS?
Is this a common setup?
Is ther any other strategy that beats ROAS?


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[suryashankar]

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[HapiGoLucky]

naa ka home lab bossing? what do you think about GN3+VMware?

[vaneeh21]

I like this thread, mu take 2 ko sa cisco 1. I'll always gonna be in this thread, I'm confused with all the the stuffs about cisco.

[r0mm3L]

kasuway na mo naay primary secondary IP sa vlan interface? palihug daw ko ug simulate ninyo

[kensh1n]

^^ IN a HSRP implementation, i think.. correct me if I'm wrong mga master..

[coolnezz]

[coolnezz]

CCNA 4 Class Lecture (1.37 min) - VIDEO


CCNA 4 Class Lecture (1.23 min) - VIDEO

[coolnezz]