Interface Layering

• What ifIndex corresponds to my IP address?

• ipAddrTable - lists all IP Addresses

• Provides an ifIndex pointer to interface

  • (A) For some devices this is the physical port
  • (B) For others, it is a pointer to a logical layer

Serial

propMultiplexor(54)

ipForward(142)

IP address

Ethernet (6)

ifStackTable

provides

ifIndex

mappings

(A)

(B)

Serial

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