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Common Operation Guide

CloudEngine 12800, 12800E, 8800, 7800, 6800, and 5800 Series Switches

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Configuring Source IP Addresses Verification

Configuring Source IP Addresses Verification

Configuring source IP address verification enables an interface to check validity of source IP addresses of received packets. Packets with invalid addresses are discarded.

RFC 1812 defines the IP source address scope as follows:
  • Broadcast addresses of Class A through Class C cannot be used as the source address.
  • Class D addresses, which are used for IP multicasting, cannot be used as the source address.
  • Class E addresses are reserved for experimental use and therefore cannot be used as the source address.
  • Addresses with all 0s or 1s cannot be used as the source address.
  • The address on network 127 cannot be used as the source address on the network outside the host.
<HUAWEI> system-view
[~HUAWEI] interface vlanif 100
[*HUAWEI-Vlanif100] ip verify source-address
[*HUAWEI-Vlanif100] commit
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Updated: 2018-10-08

Document ID: EDOC1000102369

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