3com S7906E Manuel De Montage

 

1-19 

On the network shown in 

z 

Device A connects to the marketing department through GigabitEthernet 2/0/1, and to 

GigabitEthernet 2/0/1 of Device B through GigabitEthernet 2/0/2; Device C connects to the server 

through GigabitEthernet 2/0/2, and to GigabitEthernet 2/0/2 of Device B through GigabitEthernet 

2/0/1. 

z 

Configure Layer 3 remote port mirroring to enable the server to monitor the bidirectional traffic of 

the marketing department through a GRE tunnel. 

Figure 1-6 Network diagram for Layer 3 remote port mirroring configuration 

 

 

1)  Configure IP addresses for the tunnel interfaces and related ports on the devices. 

Configure IP addresses and subnet masks for related ports and the tunnel interfaces according to the 

configurations shown in 

. 

2) Configure 

Device 

A (the source device) 

# Create tunnel interface Tunnel 0, and configure an IP address and subnet mask for it. 

<DeviceA> system-view 

[DeviceA] interface tunnel 0 

[DeviceA-Tunnel0] ip address 50.1.1.1 24 

# Configure Tunnel 0 to operate in GRE mode, and configure source and destination IP addresses for 

it.  

[DeviceA-Tunnel0] tunnel-protocol gre 

[DeviceA-Tunnel0] source 20.1.1.1 

[DeviceA-Tunnel0] destination 30.1.1.2 

[DeviceA-Tunnel0] quit 

# Create and configure service loopback group 1 and specify its service type as tunnel.  

[DeviceA] service-loopback group 1 type tunnel 

# Assign a port (GigabitEthernet 2/0/3 for example) of the device to service loopback group 1. 

[DeviceA] interface GigabitEthernet 2/0/3 

[DeviceA-GigabitEthernet2/0/3] undo stp enable