Security: IPV6 First Hop Security
Configuring First Hop Security through Web GUI
Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 427
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• Other Configuration Flag—This field specifies verification of the
advertised Other Configuration flag within an IPv6 RA Guard policy.
- No Verification—Disables verification of the advertised Other
Configuration flag.
- On—Enables verification of the advertised Managed Other flag.
- Off—The value of the flag must be 0.
• Minimal Route Preference—This field indicates whether the RA Guard
policy will verify the minimum advertised Default Router Preference value in
RA messages within an RA Guard policy.
- No Verification—Disables verification of the low boundary of
Advertised Default Router Preference.
- Low—Specifies the minimum allowed Advertised Default Router
Preference value. The following values are acceptable: low, medium and
high (see RFC4191).
- Medium—Specifies the minimum allowed Advertised Default Router
Preference value. The following values are acceptable: low, medium and
high (see RFC4191).
- High—Specifies the minimum allowed Advertised Default Router
Preference value. The following values are acceptable: low, medium and
high (see RFC4191).
• Maximal Route Preference—This field indicates whether the RA Guard
policy will verify the maximum advertised Default Router Preference value
in RA messages within an RA Guard policy.
- No Verification—Disables verification of the high boundary of
Advertised Default Router Preference.
- Low—Specifies the maximum allowed Advertised Default Router
Preference value. The following values are acceptable: low, medium and
high (see RFC4191).
- Medium—Specifies the maximum allowed Advertised Default Router
Preference value. The following values are acceptable: low, medium and
high (see RFC4191).
- High—Specifies the maximum allowed Advertised Default Router
Preference value. The following values are acceptable: low, medium and
high (see RFC4191).
