
Appendix E PSAX Modules
Route Server Module
E-48
255-700-239
PacketStar
®
PSAX 4500 Multiservice Media Gateway User Guide
, Issue 2
Release 8.0.0
•
The DSP2D module requires System Software Release 7.0.0 or subsequent.
Route Server Module
The Route Server module supports internet protoco(IP) virtual private net-
works (VPNs). Each VPN supports routing information protocol (RIP version
1 and version 2) and can be assigned to multiple IP network interfaces and
static routes. The module can interact with any other Multiservice Media
Gateway module port that is configured for frame relay, bridge, or asynchro-
nous transfer mode (ATM). All traffic on the Route Server module runs
through IP in compliance with media access control (MAC) encapsulation:
•
IP over ATM (RFC 2684)
•
IP over frame relay (RFC 2427)
•
IP over Ethernet
Note:
RFC 2684
supercedes
RFC 1483
. The Route Server module supports
RFC 1483
and
RFC 2684
, but
RFC 2685
(VPN identification) is not
supported.
RFC 2427
supersedes
RFC 1490
.
These interfaces can be mixed (that is, IP over ATM to IP over frame relay),
but may be routed same service type to same service type. Further, the traffic
can come from any I/O module supporting this traffic type.
The Route Server module can be configured through either the Multiservice
Media Gateway system console or through the simple network management
protocol (SNMP). Each Multiservice Media Gateway system may support
multiple Route Server modules, but multiple Route Server modules cannot
be configured for hot-standby redundancy purposes.
Software Release 6.3.0 introduces routing information protocol (RIP) Version
2 to the Route Server module. The module now supports Internet Protocol
virtual private networks (VPNs) by assigning multiple IP network interfaces
and static routes. (The Route Server module also supports RIP v1.0, and can
interact with any other PSAX module port that is configured for frame relay,
Ethernet bridging, or ATM.)
Release 6.3.0 software, supporting RIP v2.0, allows you to divide networks to
a further extent than the traditional subnet classes (Class A, B, and C) avail-
able with RIP v1.0. RIP v2.0 enables authentication and multicasting, and
allows you to run different masks on different subnets. Rip v2.0 can be either
active or passive.
You can assign an authentication password to an IP network interface for
maximum security. Doing so can prevent those who cannot directly access
the network from sending false routing information to the routers. RIP v1.0
messages will be ignored when authentication is in use. However, authenti-
cation does not prevent RIP v1.0 routers from viewing RIP v2.0 messages. To
prevent RIP v1.0 routers from viewing RIP v2.0 messages, you must use mul-
ticasting.
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