4-18
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 4 IP Networking
ONS 15327 IP Addressing Scenarios
Figure 4-13 Scenario 7: ONS 15327 Proxy Server with ENEs on multiple rings
shows the rules the ONS 15327 follows to filter packets when
Enable Firewall
is enabled. If
the packet is addressed to the ONS 15327, additional rules, shown in
, are applied. Rejected
packets are silently discarded.
NOC CTC
station
NOC LAN
97.1.1.x
Interface 0/0
97.1.1.1
Interface 0/1
86.1.1.1
Switch
ONS 15327
Gateway NE
ONS 15327
External NE
ONS 15327
External NE
IP 192.168.0.0/24
Central Office LAN
86.x.x.x
ONS 15327
Gateway NE
ONS 15327
External NE
Local CTC station
IP 10.10.10.10
ONS 15327
External NE
ONS 15327
External NE
IP 192.0..0.0/24
ONS 15327
External NE
78092
Table 4-3
Proxy Server Firewall Filtering Rules
Packets Arrive At
Accepted
XTC Ethernet
Interface
•
The ONS 15327 itself
•
The ONS 15327’s subnet broadcast address
•
Within the 224.0.0.0/8 network (reserved network used for standard multicast
messages)
•
255.255.255.255
DCC Interface
•
The ONS 15327 itself
•
An OSPF peer (another DCC-connected ONS 15327)
•
Within the 224.0.0.0/8 network
Содержание ONS 15327
Страница 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Страница 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Страница 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Страница 82: ...1 32 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 1 Hardware Installation Hardware Specifications ...
Страница 166: ...4 22 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 4 IP Networking ONS 15327 Routing Table ...
Страница 254: ...7 22 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 7 Card Provisioning Using Virtual Wires ...
Страница 408: ...13 26 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 13 Card Reference E10 100 4 Card ...
Страница 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...