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FAQ-Why MA5616 discard the replay packets from DHCPv6 server

Publication Date:  2012-07-25 Views:  49 Downloads:  0
Issue Description
Q:
The DSLAM MA5616, V800R310C00SPC101 configured with security anti-ipv6spoofing discards the replay packets from DHCPv6 server.
Alarm Information
Null.
Handling Process
A:Packet and protocol analyze.
Root Cause
Use wiresharck to capture packets and check why the replay packets from DHCPv6 server are discarded.


Suggestions
The Huawei equipment supports the prefix-length from 48 to 64 when it is used security anti-ipv6spoofing.
Suggestion : Reconfigure the prefix-length of DHCPv6 server witch was configured to send a prefix-length of 96.


END