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User Guide
86
4.4.4. Configuring the IPv4 Datagram
The IPv4 packet content is set much in the same way that the MAC frame content.
However, in this case, MAC addresses are replaced by IPv4 addresses. Of course,
IPv4 datagrams have their own structure and they contain some fields not present in
Ethernet frames.
Table 4.5: IPv4 Packet Settings
Setting Description
Source IPv4 address
from
Establishes the origin of the source IPv4 address for the cur-
rent stream. There are two possible settings:
• Local: The source address is set to the IPv4 address con-
figured in the port local profile. The local address may be
either configured by means the DHCP protocol or in may
be static.
• Manual: The source address is set to the value configured
in Source IPv4 address. Use manual IPv4 addresses if
you want to simulate traffic generated by an equipment dif-
ferent to the tester or, in multi-stream operation, to simu-
late traffic transmitted from different hosts. Probably, you
will want to avoid duplicated IP addresses in your network.
For this reason, make sure that no other equipment is
using the manually configured IPv4 address.
• Remote: This option is available only in RFC 2544 or
eSAM downstream asymmetric tests (See section 7.4). It
configures the source IPv4 address to be the far end
address. It must be taken into account that in downstream
asymmetric tests, the far end is configured for traffic gen-
eration. This setting corresponds with traffic to be gener-
ated not in the local unit but in a different one.
• Port A / Port B: Configures the opposite port in the same
unit as the destination for the traffic. Port B is displayed as
one of the accepted destinations for Port A and Port A is
shown in Port B with the same purpose.
Source IPv4 address Source IPv4 address carried by the packets generated in the
current stream if Source IPv4 address from is set to Manual.
The address is entered in decimal, four-dotted format. Any
address between 0.0.0.0 and 255.255.255.255 is admitted as
a source IPv4 address.
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