Cisco AIM-VPN - DES/3DES VPN Data Encryption AIM Module Uživatelský manuál stáhnout pdf (Strana 6)

HARDWARE FEATURES

Q. What government and industry certification requirements do the VPN modules meet?

A. For information about Cisco security and VPN certification and evaluation status, please see:

http://www.cisco.com/en/US/netsol/ns340/ns394/ns171/networking_solutions_audience_business_benefit0900aecd8009a16f.html

For the latest information about FIPS, refer to the following:

●

http://csrc.nist.gov/cryptval/140-1/1401val2000.htm

●

http://www.cisco.com/en/US/netsol/ns340/ns394/ns171/networking_solutions_audience_business_benefit0900aecd8009a16f.html

ADDITIONAL INFORMATION

Q. Does the VPN module support Layer 3 IP compression?

A. Yes. The Cisco AIM-VPN/BPII-PLUS, AIM-VPN/EPII-PLUS, and AIM-VPN/HPII-PLUS, as well as the Cisco AIM-VPN/SSL

Series, support hardware-enabled Layer 3 (IPPCP) compression.

With the Cisco Integrated Services Router onboard cryptographic accelerator, IPPCP compression is performed by the router CPU.

Q. What is the Canterbury Corpus?

A. The Canterbury Corpus is a benchmark tool to help researchers evaluate lossless compression methods. This site includes test files and

compression test results for many research compression methods:

http://corpus.canterbury.ac.nz/

Q. What are the average compression ratios for the Cisco AIM-VPN-II-PLUS and AIM-VPN/SSL Series using the Calgary

Corpus?

A. Table 4 shows the average compression ratios as determined from the Calgary Corpus.

Table 4. Average Compression Ratios Using the Calgary Corpus

Files Average Compression Ratio

alice29.txt 1.3

asyoulike.txt 1.3

cp.html 1.4

fields.c 1.7

grammar.lsp 2.6

kennedy.xls 1.3

lcet10.txt 1.2

plrabn12.txt 3.9

ptt5 1.6

sum 1.4

xargs.1 1.4

Average 1.76

Additional tests

Microsoft Word 2.6

FrameMaker 1.6

These values are average compression ratios, and network data may differ depending on the exact traffic type compressed.

Q. Do the Cisco Integrated Services Routers support manual IPsec?

A. Yes, both the onboard encryption acceleration engine and the VPN modules support manual IPsec.

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Cisco AIM-VPN - DES/3DES VPN Data Encryption AIM Module Uživatelský manuál Strana 6