Hitachi GR2000 Series - Manual (Page 135)

Confirmation of interface state and routing state
GR2K-GA-0015 5-35
Ver. 07-02
Figure 5-65 Example of display of NAT-PT statistical information
The statistical information on DNS query or DNS response translation is
displayed using DNS-ALG if a show dns-relay command is executed when a
NAT-PT function is used. The number of translation times increases when the
name resolution for which DNS-ALG of the router is used succeeds.
Figure 5-66 Example of display of DNS-ALG statistical information
(b) Confirmation of binding entry
The binding entry is displayed when a show ipv6 natpt translation command is
executed. The address, port number, layer 4 protocol, or TCP status (for TCP)
between terminals that perform communication can be confirmed from the
binding entry. If no communication can be performed, display a binding entry
and confirm whether the binding entry between terminals that try to perform
communication is created.
Figure 5-67 Binding entry display
(c) Confirmation of log
The log of the failure in translation or the change history of a binding entry is
displayed when a show ivp6 natpt log command is executed. As the confirmation
result of statistical information or a binding entry, detailed information can be
obtained from the log when it is considered that translation has not been
performed normally.
> show ipv6 natpt statistics
6->4 4->6 Total
NAT-PT packet counter: 440 279 719
Translated packet: 432 274 706
Not translated packet: 0 1 3
Discarded packet: 8 4 12
>
> show dns-relay
[Omitted halfway]
DNS-ALG Statistics:
AAAA -> A : 10
A -> AAAA : 10
>
>show ipv6 natpt translation 2000::1
Total Entry: 6/1000
No. IPv6 Address IPv4 Address
1 2000::1 1000 ---> 10.20.30.40 80
> show ipv6 natpt translation 2000::1 detail
Total Entry: 6/1000
No. Protocol Timeout Expire
IPv6 Address IPv4 Address
Translation Address 6->4 Packets 4->6 Packets
1 TCP ESTABLISHED 00:10:00 00:08:42
2000::1 1000 ---> 10.20.30.40 80
10.20.30.100 1 149 836
>