HP 2610, Advanced Traffic Management Manual

Page: 272 / 364

IP Routing Features
Configuring IP Parameters for Routing Switches
To enable forwarding of IP directed broadcasts, enter the following CLI
command:
ProCurve(config)# ip directed-broadcast
Syntax : [no] ip directed-broadcast
ProCurve software makes the forwarding decision based on the routing
switch's knowledge of the destination network prefix. Routers cannot deter­
mine that a message is unicast or directed broadcast apart from the destina­
tion network prefix. The decision to forward or not forward the message is by
definition only possible in the last hop router.
To disable the directed broadcasts, enter the following CLI command:
ProCurve(config)# no ip directed-broadcast
Configuring ICMP
You can configure the following ICMP limits:
■ Burst-Normal – The maximum number of ICMP replies to send per
second.
■ Reply Limit – You can enable or disable ICMP reply rate limiting.
Disabling ICMP Messages
ProCurve devices are enabled to reply to ICMP echo messages and send ICMP
Destination Unreachable messages by default.
You can selectively disable the following types of Internet Control Message
Protocol (ICMP) messages:
■ Echo messages (ping messages) – The routing switch replies to IP pings
from other IP devices.
■ Destination Unreachable messages – If the routing switch receives an
IP packet that it cannot deliver to its destination, the routing switch
discards the packet and sends a message back to the device that sent the
packet to the routing switch. The message informs the device that the
destination cannot be reached by the routing switch.
■
Address Mask replies – You can enable or disable ICMP address mask
replies.
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