ZyXEL Vantage CNM User Guide - Page 334
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Chapter 11 IPSec VPN Table 131 Device Operation > Device Configuration > VPN > IPSec VPN > VPN Connection > Add/Edit (Manual Key) (continued) LABEL DESCRIPTION Encryption Key This field is applicable when you select an Encryption Algorithm. Enter the encryption key, which depends on the encryption algorithm. DES - type a unique key 8-32 characters long 3DES - type a unique key 24-32 characters long AES128 - type a unique key 16-32 characters long AES192 - type a unique key 24-32 characters long AES256 - type a unique key 32 characters long You can use any alphanumeric characters or If you want to enter the key in hexadecimal, type "0x" at the beginning of the key. For example, "0x0123456789ABCDEF" is in hexadecimal format; in "0123456789ABCDEF" is in ASCII format. If you use hexadecimal, you must enter twice as many characters as listed above. The remote IPSec router must have the same encryption key. The ZyWALL ignores any characters above the minimum number of characters required by the algorithm. For example, if you enter 1234567890XYZ for a DES encryption key, the ZyWALL only uses 12345678. The ZyWALL still stores the longer key. Authentication Enter the authentication key, which depends on the authentication Key algorithm. MD5 - type a unique key 16-20 characters long SHA1 - type a unique key 20 characters long You can use any alphanumeric characters or If you want to enter the key in hexadecimal, type "0x" at the beginning of the key. For example, "0x0123456789ABCDEF" is in hexadecimal format; in "0123456789ABCDEF" is in ASCII format. If you use hexadecimal, you must enter twice as many characters as listed above. The remote IPSec router must have the same authentication key. The ZyWALL ignores any characters above the minimum number of characters required by the algorithm. For example, if you enter 12345678901234567890 for a MD5 authentication key, the ZyWALL only uses 1234567890123456. The ZyWALL still stores the longer key. 334 Vantage CNM User's Guide