Configuring Zero Field Check On Ripng Packets - H3C S7500E Series Operation Manual

Operation Manual – IPv6 Routing
H3C S7500E Series Ethernet Switches
Enable the split horizon
function
Note:
Generally, you are recommended to enable the split horizon to prevent routing loops.
II. Configuring the poison reverse function
The poison reverse function enables a route learned from an interface to be advertised
via the interface. However, the metric of the route is set to 16. That is to say, the route is
unreachable.
Follow these steps to configure poison reverse:
Enter system view
Enter interface view
Enable the poison reverse
function

2.4.3 Configuring Zero Field Check on RIPng Packets

Some fields in the RIPng packet must be zero. These fields are called zero fields. With
zero field check on RIPng packets enabled, if such a field contains a non-zero value,
the entire RIPng packet will be discarded. If you are sure that all packets are trusty, you
can disable the zero field check to save the CPU processing time.
Follow these steps to configure RIPng zero field check:
Enter system view
Enter RIPng view
Enable the zero field
check
To do...
ripng split-horizon
To do...
system-view
interface interface-type
interface-number
ripng poison-reverse
To do...
system-view
ripng [ process-id ]
checkzero
Chapter 2 IPv6 RIPng Configuration
Use the command...
Use the command...
Use the command...
2-9
Remarks
Optional
Enabled by default
Remarks
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Required
Disabled by default
Remarks
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Optional
Enabled by default