Traffic Redirect; Figure 72 Traffic Redirect Example - ZyXEL Communications P-660HW-Tx v3 User Manual

Table 37 More Connections Advanced Setup (continued)
LABEL
Sustain Cell Rate The Sustain Cell Rate (SCR) sets the average cell rate (long-term) that can be
Maximum Burst
Size
MTU
MTU
Back
Apply
Cancel

7.7 Traffic Redirect

Traffic redirect forwards traffic to a backup gateway when the ZyXEL Device cannot connect
to the Internet. An example is shown in the figure below.

Figure 72 Traffic Redirect Example

The following network topology allows you to avoid triangle route security issues when the
backup gateway is connected to the LAN. Use IP alias to configure the LAN into two or three
logical networks with the ZyXEL Device itself as the gateway for each LAN network. Put the
protected LAN in one subnet (Subnet 1 in the following figure) and the backup gateway in
another subnet (Subnet 2). Configure filters that allow packets from the protected LAN
(Subnet 1) to the backup gateway (Subnet 2).
P-660HW-Tx v3 User's Guide
DESCRIPTION
transmitted. Type the SCR, which must be less than the PCR. Note that system
default is 0 cells/sec.
Maximum Burst Size (MBS) refers to the maximum number of cells that can be
sent at the peak rate. Type the MBS, which is less than 65535.
The Maximum Transmission Unit (MTU) defines the size of the largest packet
allowed on an interface or connection. Enter the MTU in this field.
For ENET ENCAP, the MTU value is 1500.
For PPPoE, the MTU value is 1492.
For PPPoA and RFC 1483, the MTU is 65535.
Click Back to return to the previous screen.
Click Apply to save the changes.
Click Cancel to begin configuring this screen afresh.
Chapter 7 WAN Setup
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