Hitachi GR2000 Series User Manual

Page 197

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Troubleshooting

GR2K-GA-0015

7-31

Ver. 07-02

(a) Confirm output interface using policy routing function

Step 1.

Log in to this router.

Step 2.

Using the

show ip policy

command, inspect the configuration definition of the

policy routing input interface and the status of the policy routing output
interface.

[Example]

Confirm the output destination used by a policy routing function when the input
interface of a packet that cannot be communicated is tokyo and when the
transmission source IP address is 200.1.4.5.

Step 1.

Log in to this router.

Step 2.

Enter

show ip policy interface tokyo

:

> show ip policy interface tokyo

<Interface Name> <Filter List No>

tokyo 1,2

>

Step 3.

Confirm the condition number used in input interface tokyo.

In the example described above, <Filter List No.>: 1, 2 is applied.

Step 4.

Display the detail information of the conditions confirmed in step 3.

Enter

show ip local policy interface tokyo 1 2

:

> show ip local policy interface tokyo 1 2

<Interface Name>: tokyo <Filter List No.>: 1

ip source: 200.1.4.0 - 200.1.4.255

ip destination: 200.1.7.0 - 200.1.8.255

current policy route

Policy Group Name route1

Output Interface tokyo3

Next Hop IP address 200. 1. 10. 1

<Interface Name>: tokyo <Filter List No.>: 2

ip source: 200.1.5.0 - 200.1.5.255

ip destination: 200.1.19.0 - 200.1.20.255

current policy route

Policy Group Name route2

Output Interface yokohama

Next Hop IP address 200. 1. 50. 2

>

Step 5.

Confirm the contents of conditions and the output destination at that time.

Compare the contents of a packet that cannot be communicated and
confirm the policy routing group name under conditions in which the
contents match.

Step 6.

Confirm the state of the employed policy group. Enter

show ip cache policy

route1

:

> show ip cache policy route1

<Policy Group Name>: route1

priority Interface Name status Nexthop

1 tokyo1 Down 200. 1. 1. 2

2 tokyo1 Down 200. 1. 2. 2

3 tokyo2 Down 200. 1. 8. 3

*> 4 tokyo3 Down 200. 1. 10. 1 default

>

Step 7.

A packet is discarded because it cannot be output due to a defective output
destination interface. Recheck the policy information setting of the current
configuration definition information and follow “Section 7.4,
“Communication failure in network interface” on page 7-11.

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