HP Comware 5 Debug Manual Vol 3

URPF debugging commands
The output description tables in this document only contain fields and messages that require an
explanation.
debugging ip urpf discards
Use debugging ip urpf discards to enable URPF debugging.
Use undo debugging ip urpf discards to disable URPF debugging.
Syntax
debugging ip urpf discards [ interface interface-type interface-number ]
undo debugging ip urpf discards [ interface interface-type interface-number ]
Default
URPF debugging is disabled.
Views
User view
Default command level
1: Monitor level
Parameters
interface interface-type interface-number: Specifies an interface by its type and number.
Usage guidelines
Table 1 describes output fields and messages for the debugging ip urpf discards command.
Table 238 Output from the debugging ip urpf discards command
Field
Description
URPF URPF-Discard: Packet from ip-address via
interface-type interface-number
URPF discarded a packet.
URPF URPF-Discard-Suppress: Packet from ip-address
via interface-type interface-number
URPF suppressed a packet, and then forwarded the
packet because the packet matched an ACL.
Examples
# Enable URPF debugging. When a packet with an unknown source IP address arrives at Ethernet 1/1,
output similar to the following example is generated:
<Sysname> debugging ip urpf discards
<Sysname> terminal monitor
<Sysname> terminal debugging
*0.3933516 Sysname URPF/7/Discard:
URPF URPF-Discard: Packet from 2.2.2.5 via Ethernet1/1
// URPF dropped a packet received from Ethernet 1/1. The packet has a source IP address of 2.2.2.5.
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