Configuring Ip-Subnet-Based Vlan - 3Com Switch 4800G 24-Port Configuration Manual

94 C 9: VLAN C
HAPTER
Configuring
IP-Subnet-Based VLAN
Introduction
Configuring an
IP-Subnet-Based VLAN
ONFIGURATION
template for llc encapsulation. Otherwise, the encapsulation format of the
matching packets will be the same as that of the ipx llc or ipx raw packets
respectively.
When you use the mode keyword to configure a user-defined protocol
■
template, do not set etype-id in ethernetii etype etype-id to 0x0800, 0x8137,
0x809b, or 0x86dd. Otherwise, the encapsulation format of the matching
packets will be the same as that of the IPv4, IPX, AppleTalk, and IPv6 packets
respectively.
Do not configure a VLAN as both a protocol-based VLAN and a voice VLAN.
■
Because a protocol-based VLAN requires that the inbound packets on the
Hybrid port are untagged packets, whereas the Hybrid port working in auto
voice VLAN mode only supports to process tagged voice traffic. For more
information, refer to "Voice VLAN Configuration" on page 99.
In this approach, VLANs are categorized based on the source IP addresses and the
subnet masks of packets. After receiving an untagged packet from a port, the
device identifies the VLAN the packet belongs to based on the source address
contained in the packet, and then forwards the packet in the VLAN. This allows
packets from a certain network segment or with certain IP addresses to be
forwarded in a specified VLAN.
n
This feature is only applicable to Hybrid ports.
Follow these steps to configure an IP-subnet-based VLAN:
To do...
Enter system view
Enter VLAN view
Configure the association
between an IP subnet with the
current VLAN
Return to system view
Enter Enter Ethernet
Ethernet port view
port view
Enter port group
or port
view
group view
Configure port link type as
Hybrid
Use the command...
system-view
vlan vlan-id
ip-subnet-vlan
[ ip-subnet-index ] ip
ip-address [ mask ]
quit
interface interface-type
interface-number
port-group { manual
port-group-name |
aggregation agg-id }
port link-type hybrid
Remarks
-
-
Required
The configured IP network
segment or IP address cannot
be a multicast network
segment or a multicast address
-
Use either command;
In Ethernet port view, the
subsequent configurations
only apply to the current port;
in port group view, the
subsequent configurations
apply to all ports in the port
group
Required