Establishing Routing Between Vlans - 3Com corebuilder 3500 Implementation Manual

Establishing Routing
Between VLANs
Table 20 shows the information that can be used to configure these
VLANs on Device 1 (the device on the left):
Table 20 Sample Protocol-based VLAN Definitions
IP-1 VLAN
VLAN Index 2
VID 12
Bridge ports 1, 13-15
Protocol type IP
No Layer 3 address
Per-port tagging:
Port 1 — IEEE 802.1Q
Ports 13-15 — none
VLAN name IP-1
Your system supports routing using IP, IPX, and AppleTalk VLANs. If VLANs
are configured for other routable network layer protocols, the VLANs can
communicate between those protocols only through an external router.
The system's routing over bridging model allows you to configure routing
protocol interfaces based on a static VLAN defined for one or more
protocols. You must first define a VLAN to support one or more protocols
and then assign a routing interface for each protocol associated with the
VLAN. (You can also opt to use a routing versus bridging model by
defining a router port IP interface, as defined in Chapter 11.)
Because the system supports router port IP interfaces as well as IP router
interfaces for static VLANs, you must specify the interface type vlan when
you define an IP interface for a static VLAN.
IP-2 VLAN
VLAN Index 3
VID 13
Bridge ports 1, 16-18
Protocol type IP
No Layer 3 address
Per-port tagging:
Port 1 — IEEE 802.1Q
Ports 16-18 — none
VLAN name IP-2
Protocol-based VLANs
IPX-1 VLAN
VLAN Index 4
VID 16
Bridge Ports 1, 7-9
Protocol type IPX-802.3
No Layer 3 address
Per-port tagging:
Port 1 — none
Ports 7-9 — none
VLAN name IPX-1
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