Titan Electronics Inc NETCOM423 Manuel D’Utilisation

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5.2.7.3. 
NetCom Detection through SOHO Firewall 
Now open the NetCom Manager as in section 5.2.6 above, and click the 
“Add” button. You again get the NetCom Manager Server Settings 
dialog. But now you have to select the panel named “Firewall”. 
Check the Option “Enable Firewall”, and enter the IP-Address of the 
router in the “Address” field. In the field “Port” enter the target port for 
the SNMP configuration. From the Virtual Server example above this is 
port 8161. Since there is no configured VSrv for Logging, ignore this 
field. Click the button “Verify” to have the NetCom Manager contact 
the router. This is a directed request, so there is no problem with 
broadcasts. Some ISP will block the SNMP protocol, which typically 
means they do not transport data for 161/udp to their customers (this is 
the first reason why port 8161 was used in the example). The router will 
transfer the request to UDP-Port 161 on the NetCom, which is the port 
for SNMP. The NetCom will answer the request, and send it out to your 
computer. The NAT function in the router will exchange the source IP 
of the data by its own public value, so the NetCom Manager will see the 
 
Image 56: NetCom Manager Firewall Panel 
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NetCom 123 WLAN, 423 WLAN,