Riverbed® Steelhead® RiOS® Application Installation and Getting Started Guide 2010-10

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Overview
Accelerating WAN Connections
Figure 1-3. Routing with Multiple VLANs
External routing. In this deployment, the HP 5400zl or 8200zl switch has an
external firewall that is functioning as a router. For example, the switch might
include an HP Threat Management Services zl Module, which is routing traffic
and providing firewall services (as well as IPS and VPN services). The Steel-
head Application does not receive traffic directly from the outside subnet but
only from the TMS zl Module.
The HP 5400zl or 8200zl switch is configured as a routing switch and supports
multiple VLANs. However, the branch office wants to intercept only the traffic
from the untagged VLAN. Consequently, the Extended Services zl Module’s
port 2 is untagged in one VLAN only.
Figure 1-4. External Routing