Ipv6 Dhcp Relay Communication Problems - Alaxala AX6700S Troubleshooting Manual

(7) Checking the filtering and QoS control configuration information
Certain packets might have been discarded either by filtering or by bandwidth monitoring,
drop control, or the QoS control shaper.
Make sure that the setting conditions for filtering and QoS control in the configuration are
correct, and that bandwidth monitoring, drop control, or the shaper is used appropriately in
the system configuration. For details about the procedure, see 3.24.1 Checking the filtering
and QoS control configuration information.
(8) Checking the RA configuration information
If communication between the Switch and a terminal directly connected to the Switch is not
possible, address information might not be correctly distributed by RA. Therefore, check
whether the RA functionality is correctly set in the configuration. To carry out the check, do
the following:
1. Log in to the Switch.
2. Execute the
Switch.
3. If the IPv6 address information has been correctly distributed, the interface might
have a problem with the functionality shown below. That functionality must be
checked.
(9) Checking the optional license OP-NPAR
If the target interface is a VRF interface and the configuration is present, but the interface is
not displayed by the
interface is displayed but the IPv6 address specified in the configuration is not displayed by
the same command, the optional license OP-NPAR might have not been registered or
might be invalid. Use the
To carry out the check, do the following:
1. Log in to the Switch.
2. Use the
3. If OP-NPAR is not displayed for the license software, the OP-NPAR license key is not
registered. Register the OP-NPAR license key.
4. If OP-NPAR is displayed for the license software, but OP-NPAR is not displayed for
the enabled options, the hardware configuration of the Switch might not support
OP-NPAR. Check the hardware configuration. For details about the hardware
configurations that do not support OP-NPAR, see the Configuration Guide Vol. 1.
5. If the hardware configuration of the Switch supports OP-NPAR, but OP-NPAR is not
displayed for the enabled options, it is necessary to restart the Switch to enable the
optional license. Use the
6. If OP-NPAR is displayed for the enabled options, see (3) Identifying the range for a
failure (from the Switch).

3.9.2 IPv6 DHCP relay communication problems

There are three probable causes for communication problems on an IPv6 DHCP relay.
1. A configuration related to the IPv6 DHCP relay is changed.
2. The network configuration is changed.
3 Troubleshooting Functional Failures During Operation
RA functionality
See (8) Checking the RA configuration information.
show ipv6 routers
Filtering and QoS functionality
See (7) Checking the filtering and QoS control configuration information.
show ipv6 interface
show license
command to check the license software and enabled options.
show license
reload
command to check the RA information for the
command, or if in the same situation, the
command to check optional licenses of the Switch.
command to restart the Switch.
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