ideal to support mission- critical applications extending to the branch
office.
The XSR-3250 offers nearly ten times the performance speed of the XSR-
1850 and approximately 15 times more VPN tunnels. Coupling these
features with the six network interface module (NIM) slots makes the XSR-
3250 ideally suited to a regional office required to terminate up to six
T3/E3 or 24 T1/E1 connections. A redundant power supply is included.
The features of each XSR module are summarized in
Table 1.
XSR Model XSR-1805 XSR-1850 XSR-3250
NIM Slots
2 2 6
Fixed 10/100/1000 LAN
Ports
2 10/100 2 10/100 3
Optional Gigabit
Ethernet
N/A N/A Mini-GBIC
Redundant Power
Supplies
No Option Standard
VPN Accelerator
Embedded Embedded Embedded
Flash Memory
8 MB
(upgradeable)
8 MB
(upgradeable)
8 MB
DRAM
32 MB
(upgradeable)
64 MB
(upgradeable)
256 MB
(upgradeable)
External Compact Flash
Yes Yes Yes
Table 1 - Features At-a-Glance
Some highlighted security features of the XSR modules are:
• Telnet over IPSec or SSHv2-secured remote management of the
modules
• Site-to-Site application VPN using IPSec
• Remote access VPN using L2TP over IPSec
• Access control through assigned privilege level
• User, certificate, and host key database files encrypted with a
master encryption key
Cryptographic Module
The XSR modules were evaluated as multi-chip standalone cryptographic
modules. The metal enclosure physically encloses the complete set of
hardware and software components, and represents the cryptographic
boundary of each module.
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