Draytek VigorFly 210 User Manual page 125

Available settings are explained as follows:
Item
WEP Key1-Key4
VigorFly 210 Series User's Guide
Description
Four keys can be entered here, but only one key can be
selected at a time. The format of WEP Key is restricted to 5
ASCII characters or 10 hexadecimal values in 64-bit
encryption level, or restricted to 13 ASCII characters or 26
hexadecimal values in 128-bit encryption level. The
allowed content is the ASCII characters from 33(!) to
126(~) except '#' and ','.
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