13-13
Cisco ONS 15454 Reference Manual, R8.5.x
78-18106-01
Chapter 13 Management Network Connectivity
13.2.7 IP Scenario 7: Provisioning the ONS 15454 SOCKS Proxy Server
The ONS 15454 gateway setting performs the following tasks:
• Isolates DCC IP traffic from Ethernet (craft port) traffic and accepts packets based on filtering rules.
The filtering rules (see Table 13-3 on page 13-17 and Table 13-4 on page 13-18) depend on whether
the packet arrives at the ONS 15454 DCC or the TCC2/TCC2P Ethernet interface.
• Processes Simple Network Time Protocol (SNTP) and Network Time Protocol (NTP) requests.
ONS 15454 ENEs can derive time-of-day from an SNTP/NTP LAN server through the GNE
ONS 15454.
• Processes Simple Network Management Protocol version 1 (SNMPv1) traps. The GNE ONS 15454
receives SNMPv1 traps from the ENE ONS 15454s and forwards or relays the traps to SNMPv1 trap
destinations or ONS 15454 SNMP relay nodes.
The ONS 15454 SOCKS proxy server is provisioned using the Enable SOCKS proxy server on port
check box on the Provisioning > Network > General tab (Figure 13-10).
Figure 13-10 SOCKS Proxy Server Gateway Settings
If checked, the ONS 15454 serves as a proxy for connections between CTC clie nts and ONS 15454s that
are DCC-connected to the proxy ONS 15454. The CTC clie nt establishes connections to DCC-connected
nodes through the proxy node. The CTC client can connect t o nodes that it cannot directly reach from
the host on which it runs. If not selected, the node does not proxy for any CTC clients, although any
established proxy connections continue until the CTC client exits. In addition, you can set the SOCKS
proxy server as an ENE or a GNE: