Ascend Pipeline Guida Utente Pagina 180
- Pagina / 321
- Indice
- RISOLUZIONE PROBLEMI
- SEGNALIBRI
Valutato. / 5. Basato su recensioni clienti
Defining Filters and Firewalls
Overview of Filter profiles
Pipeline User’s Guide Preliminary January 30, 1998 6-11
If a filter is applied as a data filter, the “forward” action determines which
packets will be transmitted and received. If a filter is applied as a call filter,
the “forward” action determines which packets can either initiate a
connection or reset the timer for an established connection.
5
Set the source and destination address and mask/
The source and destination Mask and Adrs parameters specify the contents
of the source or destination fields in a packet. Use the Mask parameter to
mask out portions of the source or destination address, for example, to mask
out the host number.
6
Specify the Protocol.
The Protocol parameter is used to identify a specific TCP/IP protocol; for
example, 6 specifies TCP packets. Common protocols are listed below, but
protocol numbers are not limited to this list. For a complete list, see the
section on Well-Known Port Numbers in RFC 1700, Assigned Numbers, by
Reynolds, J. and Postel, J., October 1994.
–1 — ICMP
–5 — STREAM
–8 — EGP
–6 — TCP
– 9 — Any private interior gateway protocol, such as Cisco’s IGRP
– 11 — Network Voice Protocol
– 17 — UDP
– 20 — Host Monitoring Protocol
– 22 — XNS IDP
– 27 — Reliable Data Protocol
– 28 — Internet Reliable Transport Protocol
– 29 — ISO Transport Protocol Class 4
– 30 — Bulk Data Transfer Protocol
– 61 — Any Host Internal Protocol
–89 — OSPF
7
Set the source and destination ports and comparison method.
- Pipeline User’s Guide 1
- Ascend Customer Service 3
- Contents 5
- About This Guide 16
- Documentation conventions 17
- Manual set 19
- Configuring WAN Connections 20
- Link encapsulation 21
- Nailed groups 22
- How calls are initiated 23
- How calls are answered 24
- Data compression options 25
- The Answer profile 26
- Connection profiles 28
- Session options 30
- Telco options 31
- Encapsulation options 32
- MP, MPP, and MP+ connections 34
- Monitoring DBA 37
- Example MP+ configuration 38
- BACP connections 40
- Nailed MPP connections 42
- Inverse ARP for Frame Relay 49
- Configuring IP Routing 51
- Host-to-router connections 52
- Router-to-router connections 53
- Subnet mask notation 54
- RIP-v2 and RIP-v1 routing 59
- Interface-based routing 60
- Managing the routing table 64
- Static and dynamic routes 66
- Configuring static routes 66
- Configuring the default route 69
- If you are using RIP-v1 71
- Route preferences 74
- Viewing the routing table 75
- Fields in the routing table 77
- 10.8.9.10 82
- 10.2.3.1 82
- Host with ISDN 82
- Example router connection 83
- Foreign and home agents 87
- IP Address Management 90
- IP Adrs=10.2.3.1 92
- Gateway=10.0.0.17 93
- Active=Yes 93
- Dest=0.0.0.0/0 93
- Metric=1 93
- Private=Yes 93
- Enabling DNS on the Pipeline 96
- Generating UDP checksums 96
- BOOTP Relay 98
- Configuring DHCP services 100
- DHCP services 101
- Setting up a DHCP server 103
- Setting up DHCP spoofing 103
- Local DNS host address table 106
- Creating the local DNS table 108
- Editing the local DNS table 109
- Translation table size 113
- Multiple-address NAT 114
- NAT for Frame Relay 117
- Well-known ports 121
- Configuring IPX Routing 122
- Extensions to standard IPX 124
- Required settings 126
- IPX Route profiles 127
- IPX SAP filters 128
- Dial Query 129
- Watchdog spoofing 130
- Automatic SPX spoofing 130
- IPX in the Answer profile 132
- IPX SAP proxy servers 135
- Managing IPX SAP filters 142
- Applying an IPX SAP filter 144
- Ethernet 146
- About IPX bridging 156
- Enabling bridging 158
- Managing the bridge table 159
- Static bridge-table entries 160
- 10.2.3.4/24 168
- 10.2.3.75/24 168
- 10.2.3.8/24 168
- 10.2.3.100/24 168
- Introduction to filters 170
- Predefined call filters 174
- Overview of Filter profiles 175
- Defining IP filter conditions 179
- Example filters 181
- NetWare Call filter 190
- IP Call filter 195
- AppleTalk Call filter 195
- When packets are not captured 197
- Displaying packets 198
- Example 2 199
- Example 3 200
- Example 4 201
- Example 5 202
- Secure Access Firewalls 203
- Filter persistence 205
- Setting Up Pipeline Security 207
- Recommended security measures 208
- Assigning a Telnet password 211
- Pipeline Security profiles 213
- Default security level 214
- Security profile passwords 214
- Security privileges 214
- Using the Full Access profile 215
- Connection security 217
- Authentication protocols 218
- Callback security 221
- Expect callback support 222
- Using security cards 223
- Requesting PAP-TOKEN mode 225
- Requesting CACHE-TOKEN 226
- Setting system values 233
- Syslog messages 236
- Using DO commands 239
- Resetting the Pipeline 244
- Terminal server commands 246
- IpAddress: ttt.ttt.ttt.ttt 250
- Pipeline 75 Voice Features 251
- Ordering voice features 253
- Caller ID supported 256
- Using Call Waiting 256
- Using Call Hold 257
- Call conferencing 258
- EAZ Terminal ID for Germany 260
- IDSL Implementations 261
- Making voice calls over IDSL 264
- APP Server utility 265
- C:\NOVELL\LSL.COM 273
- C:\NOVELL\XXXODI.COM 273
- C:\ASCEND\APPSRVDS.EXE 273
- C:\ASCEND\ 274
- Troubleshooting 278
- General problems 279
- 100 terminal 281
- ISDN BRI interface problems 284
- Bridge/router problems 286
- Check the installation 287
- Configuration problems 288
- Upgrading system software 291
- Network Interfaces 292
- The upgrade procedure 293
- Activating a Security Profile 294
- Before you begin 296
- Glossary 304
- Broadcast packets 305
- VT-100 terminal emulation 307
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