Hitachi GR2000 Series - Manual (Page 130)

Hitachi Gigabit Router GR2000 Series Enhanced Version Operations - Device Management Overview
5-30 GR2K-GA-0015
Ver. 07-02
5.5.3 Confirming the route to relevant destination address
Execute a traceroute ipv6 command and confirm the repeater station between the
interface of the router connected to an IPv6 network and the router used as a
communication peer.
Figure 5-56 Result of traceroute ipv6 Command, All Destinations Reachable
5.5.4 Confirming the NDP Information with Neighbor Device
After an IPv6 address is set to the line of the router, connected to an IPv6 network, or
the port in a line, execute a show ipv6 neighbors command and confirm whether the
address resolution between the router and the adjacent router is performed (NDP
entry information exists). See Subsection 7.8.1, “Communication cannot be done or
communication is disconnected” when no address resolution is performed
5.5.5 Confirming the filtering function
The contents of confirmation when a filtering function is used in the router are as
described below.
5.5.5.1 Confirmation during operation
(a) Confirmation of statistical information
Execute a show filter-flow command to display IP flow statistical information and
confirm the number of discarded packets. If the number of discarded packets is
large, packets may be discarded in the communication part where they must not
be discarded. Confirm the current operational state of the network.
Figure 5-57 Display of discarded packet count by filtering
> traceroute ipv6 3ffe:501:811:ff01::1 numeric
traceroute6 to 3ffe:501:811:ff01::1 (3ffe:501:811:ff01::1), 30 hops max,
40 byte packets
1 3ffe:501:811:ff03::10 0.612 ms 0.541 ms 0.532 ms
2 3ffe:501:811:ff02::5 0.905 ms 0.816 ms 0.807 ms
3 3ffe:501:811:ff01::1 1.325 ms 1.236 ms 1.227 ms
>
> show filter-flow interface tokyo1 detail
<Filter IPv6 List No.>: 40010
Using Interface:tokyo1/in
protocol:6
ip destination:3ffe:501:811:ff00::0 - 3ffe:501:811:fffe::ffff
port source:80
forward packets : 7469982
<Filter IPv6 List No.>: 41000
Using Interface:tokyo1/in
drop packets : 327032706
[Omitted hereinafter.]
>