Canon imageRUNNER ADVANCE 4551i Service Manual page 756

COPIER > OPTION > NETWORK
IPTBROAD 1
Detail
Use Case
Adj/Set/Operate Method
Display/Adj/Set Range
Default Value
PFWFTPRT 1
Detail
Use Case
Adj/Set/Operate Method
Display/Adj/Set Range
Default Value
IPMTU 1
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Unit
Default Value
Supplement/Memo
Amount of Change per
Unit
Set to allow broad/multicast TX
*Operation on this item is restricted by the setting of [Restrict Service Representation Access].
To set whether to permit transmission of broadcast packets and multicast packets.
Transmission of broadcast packets and multicast packets is permitted without specifying an
exception address. It is permitted within the device even if it is rejected in the default setting of the
IPv4/v6 transmission filter.
Set "1: Disabled" when the user does not want to send them.
Upon user's request
Enter the setting value, and then press OK key.
0 to 5
0: Enabled, 1: Disabled, 2 to 5: Not used
0
Set of RST reply at IP filter FTP SEND
*Operation on this item is restricted by the setting of [Restrict Service Representation Access].
When FTP SEND is executed using an IP filter by which packets from a specific remote PC are
rejected, SYN is returned to the port 113 if the PC supports authentication of the FTP port 113.
However, since the IP filter blocks the packets, the block logs are increased and the performance
is lowered.
When 1 is set, RST is returned to the port 113 without blocking packets.
When executing FTP SEND against the OS which supports authentication of the FTP port 113
while the IP filter is enabled
Enter the setting value, and then press OK key.
0 to 1
0: OFF, 1: ON
0
Setting of MTU size
To set MTU size of network packet.
This item is used when performing SEND communication between locations connected with
Ethernet in a field environment where MTU black hole problem occurs.
When MTU black hole problem occur
Enter the setting value, and then press OK key.
With IPv6, use of MTU which size is less than 1280 bytes is not recommended by RFC.
Therefore, when setting IPv6 to ON and MTU to 7 or smaller, communication using IPv6 may not
be available.
1 to 10
1: 600 byte, 2: 700 byte, ..., 9: 1400 byte, 10: 1500 byte
byte
10
MTU: The maximum size of data unit that can be transmitted with a single transfer (1 frame) over
network.
MTU black hole: A problem which occurs when ICMP packets are filtered by firewall, etc. (Since
no message is sent to the sender, the sender does not notice that the packets are discarded and
timeout occurs.)
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8. Service Mode