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of an IPv4 packet. A PPP interface makes use of RFC 1332, The PPP Internet Protocol Control
Protocol (IPCP), PPP IPCP encapsulation of an IPv4 packet. A Cisco HDLC SAP uses the routed
IPv4 encapsulation. The pseudowire uses the IP Layer 2 transport pseudowire encapsulation type.
Note that the Ipipe is a point-to-point Layer 2 service. All packets received on one SAP of the
Ipipe will be forwarded to the other SAP. No IP routing of customer packets occurs.
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