Hitachi GR2000 Series - Manual (Page 137)

Confirmation of interface state and routing state
GR2K-GA-0015 5-37
Ver. 07-02
5.6 Confirmation of IPv6 Unicast Routing Information
5.6.1 Confirming the route to destination address
Confirm using a show ipv6 route command that the route to a destination address
exists when IPv6 unicast routing information is set in the router. If no router exists,
refer to Subsection 5.6.2, “Confirming the gateway information of RIPng” to
Subsection 5.6.5, “Confirming that IPv6 address information is distributed properly”.
Figure 5-69 Result of execution of show ipv6 route command
5.6.2 Confirming the gateway information of RIPng
Confirm the following using a show ipv6 rip gateway command when a RIPng
function is set using the IPv4 unicast routing information of the router.
Make sure that the neighbor router reporting the relevant route is displayed in
the Gateway Address. If the neighbor router is not specified, the GR2000 has not
received the RIPng packet from the neighbor router. Troubleshoot the neighbor
router or the interface to the neighbor router.
Make sure that age is displayed within 30 seconds. If age is defined over 30
seconds, the RIPng packet will not arrive from the neighbor router periodically.
Troubleshoot the neighbor router or the interface to the neighbor router.
See if Format is displayed in Flags. If it is displayed, the GR2000 has received an
invalid RIPng packet from the neighbor router. If this is the case, troubleshoot
the neighbor router.
See if Reject is displayed in Flags. If it is displayed, the RIPng packet from the
relevant router is rejected. Specify the ripin option for the relevant interface by
executing the
ripng command (specifies interface).
See if ImportRestrict is displayed in Flags. If it is displayed, the import filter
might have filtered the packets on the relevant route. Check the import filter
setting in the configuration information.
In other cases, neighbor routers might not have reported the relevant route.
Troubleshoot neighbor routers.
Figure 5-70 Result of show ipv6 rip gateway Command
> show ipv6 route
Total: 10 routes
Destination Next Hop Interface Metric Protocol Age
::/96 ::1 - 0/0 Direct 300
fe80::/10 ::1 - 0/0 Direct 300
:
3ffe:501:811:ff01::/64 fe80::2a0:c9ff:fe6b:8e1b PAIR1 3/0 RIPng 100
:
> Inspect whether there is a route
to the destination address
> show ipv6 rip gateway
Gateway Address Age Flags
fe80::2a0:c9ff:fe6b:8e1b%eth00 5s <Accept>
fe80::200:87ff:fed0:e261%Depart 8s <Accept>
fe80::260:8ff:fe8e:3090%TestPC 12s <Accept>
:
>