HP Comware 5 Debug Manual Vol 1

Added network parameters on interface Ethernet1/1.
// Network parameters were added on interface Ethernet 1/1.
debugging ipv6 dhcp relay
Use debugging ipv6 dhcp relay to enable DHCPv6 relay agent debugging.
Use undo debugging ipv6 dhcp relay to disable DHCPv6 relay agent debugging.
Syntax
debugging ipv6 dhcp relay { all | error | event | packet | timer }
undo debugging ipv6 dhcp relay { all | error | event | packet | timer }
Default
DHCPv6 relay agent debugging is disabled.
Views
User view
Default command level
1: Monitor level
Parameters
all: Specifies all DHCPv6 relay agent debugging.
error: Specifies DHCPv6 relay agent error debugging.
event: Specifies DHCPv6 relay agent event debugging.
packet: Specifies DHCPv6 relay agent packet debugging.
timer: Specifies DHCPv6 relay agent timer debugging.
Usage guidelines
Tab l e 197 describes output fields and messages for the debugging ipv6 dhcp relay error command.
Table 197 Output from the debugging ipv6 dhcp relay error command
Field
Description
Drop a relay-reply packet for link address
information error.
The Relay-reply packet is discarded because of a link layer address
error in the following situations:
• The interface ID option does not exist, and the IPv6 address in
the link-address option is one of the following addresses:
 Unspecified address (::).
 Loopback address (::1).
 Multicast address of the interface-local scope (FF01::/16)
 Multicast address of the link-local scope (FF02::/16).
• The interface ID option does not exist, and the valid interface
index cannot be obtained from the link-address option.
The hop count in the msg-type message
has reached the maximum.
The hop count in the Relay-forward or Relay-reply packet exceeds
the maximum of 31.
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