Product Manual

DES-3526 / DES-3526DC Fast Ethernet Layer 2 Switch
packet header.
VLAN Selecting this option instructs the Switch to examine the VLAN part of each packet
header and use this as the, or part of the criterion for forwarding.
Source IP Mask Enter an IP address mask for the source IP address.
Destination IP Mask Enter an IP address mask for the destination IP address.
DSCP Selecting this option instructs the Switch to examine the DiffServ Code part of each
packet header and use this as the, or part of the criterion for forwarding.
Protocol Selecting this option instructs the Switch to examine the protocol type value in each
frame's header. You must then specify what protocol(s) to include according to the
following guidelines:
Select ICMP to instruct the Switch to examine the Internet Control Message Protocol
(ICMP) field in each frame's header.
• Select Type to further specify that the access profile will apply an ICMP type
value, or specify Code to further specify that the access profile will apply an
ICMP code value.
Select IGMP to instruct the Switch to examine the Internet Group Management
Protocol (IGMP) field in each frame's header.
• Select Type to further specify that the access profile will apply an IGMP type
value
Select TCP to use the TCP port number contained in an incoming packet as the
forwarding criterion. Selecting TCP requires that you specify a source port mask
and/or a destination port mask. The user may also identify which flag bits to deny.
Flag bits are parts of a packet that determine what to do with the packet. The user
may deny packets by denying certain flag bits within the packets, by checking the
boxes corresponding to the flag bits of the TCP field. The user may choose between
urg (urgent), ack (acknowledgement), psh (push), rst (reset), syn (synchronize), fin
(finish).
• src port mask - Specify a TCP port mask for the source port in hex form (hex
0x0-0xffff), which you wish to deny.
• dest port mask - Specify a TCP port mask for the destination port in hex
form (hex 0x0-0xffff) which you wish to deny.
Select UDP to use the UDP port number contained in an incoming packet as the
forwarding criterion. Selecting UDP requires that you specify a source port mask
and/or a destination port mask.
• src port mask - Specify a TCP port mask for the source port in hex form (hex
0x0-0xffff).
• dest port mask - Specify a TCP port mask for the destination port in hex
form (hex 0x0-0xffff).
protocol id - Enter a value defining the protocol ID in the packet header to mask.
Specify up to 5, Layer 4 port masks for the destination port in hex form (hex 0x0-
0xffffffff).
The window shown below is the Access Profile Configuration window for Packet Content Mask.
88