User`s manual

SIP User's Manual 9. Networking Capabilities
Version 5.0 239 October 2006
9.10.2.1 Operation
 Outgoing packets (from the gateway to the switch):
All outgoing packets are tagged, each according to its interface (control, media or
OAM). If the gateway’s native ID is identical to one of the other IDs (usually to the
OAM ID), this ID (e.g., OAM) is set to zero on outgoing packets
(VlanSendNonTaggedOnNative = 0). This method is called Priority Tagging (p tag
without Q tag). If the parameter VlanSendNonTaggedOnNative is set to 1, the
gateway sends regular packets (with no VLAN tag).
 Incoming packets (from the switch to the gateway):
The switch sends all packets intended for the gateway (according to the switch’s
configuration) to the gateway without altering them. For packets whose VLAN ID is
identical to the switch’s PVID. In this case, the switch removes the tag and sends a
packet.
The gateway only accepts packets that have a VLAN ID identical to one of its
interfaces (control, media or OAM). Packets with a VLAN ID that is 0 or packets
without a tag are accepted only if the gateway’s native VLAN ID is identical to the
VLAN ID of one of its interfaces. In this case, the packets are sent to the relevant
interface. All other packets are rejected.
9.10.3 Getting Started with VLANS and Multiple IPs
By default, the gateway operates without VLANs and multiple IPs, using a single IP
address, subnet mask and default gateway IP address. This section provides an example
of the configuration required to integrate the gateway into a VLAN and multiple IPs network
using the Embedded Web Server (refer to Section
9.10.3.1) and ini file (refer to Section
9.10.3.2 on page 242). Table 9-2 below shows an example configuration that is
implemented in the following sections.
Table 9-2: Example of VLAN and Multiple IPs Configuration
Network
Type
IP Address Subnet Mask
Default
Gateway IP
Address
VLAN ID
External
Routing Rule
OAM 10.31.174.50 255.255.0.0 0.0.0.0 4 83.4.87.X
Control 10.32.174.50 255.255.0.0 0.0.0.0 5 130.33.4.6
Media 10.33.174.50 255.255.0.0 10.33.0.1 6 --
Note that since a default gateway is available only for the Media network, for the gateway
to be able to communicate with an external device / network on its OAM and Control
networks, IP routing rules must be used.
Note: The values provided in Sections 9.10.3.1 and 9.10.3.2 are sample
parameter values only and are to be replaced with actual values
appropriate to your system.