7.1.3 Packet forwarding settings

If a UDP packet received by the Switch is forwarded, the packet is duplicated and forwarded to the helper address. The following table describes the settings for packets sent during packet forwarding.

Table 7-3: Settings for sending packets when forwarding packets
Protocol header	header field	Description
IP header	Destination IPv4 address	Change to the helper address specified in the configuration command ip udp forward helper-address.
	Source IPv4 address	Do not change
	TTL	Subtract 1
	IP option	Handles the following IP options: Record Route Internet Timestamp
	Checksum	Recalculate
UDP headers	Destination port number	Do not change
	Source port number	Do not change
	Checksum	Recalculate