1/base.txt 2/issue37.txt
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7.1.1 Sending Secure Neighbor Solicitations . . . .37 7.1.1 Sending Secure Neighbor Solicitations . . . .37
7.1.2 Receiving Secure Neighbor Solicitations . . .37 7.1.2 Receiving Secure Neighbor Solicitations . . .37
7.2 Neighbor Advertisement Messages . . . . . . . . . . 37 7.2 Neighbor Advertisement Messages . . . . . . . . . . 37
7.2.1 Sending Secure Neighbor Advertisements . . . .37 7.2.1 Sending Secure Neighbor Advertisements . . . .37
7.2.2 Receiving Secure Neighbor Advertisements . . .38 7.2.2 Receiving Secure Neighbor Advertisements . . .38
7.3 Other Requirements . . . . . . . . . . . . . . . . . 38 7.3 Other Requirements . . . . . . . . . . . . . . . . . 38
8. Securing Router Discovery with SEND . . . . . . . . . . . 40 8. Securing Router Discovery with SEND . . . . . . . . . . . 40
8.1 Router Solicitation Messages . . . . . . . . . . . . 40 8.1 Router Solicitation Messages . . . . . . . . . . . . 40
8.1.1 Sending Secure Router Solicitations . . . . .40 8.1.1 Sending Secure Router Solicitations . . . . .40
8.1.2 Receiving Secure Router Solicitations . . . .40 8.1.2 Receiving Secure Router Solicitations . . . .40
8.2 Router Advertisement Messages . . . . . . . . . . . 41 8.2 Router Advertisement Messages . . . . . . . . . . . 40
8.2.1 Sending Secure Router Advertisements . . . . .41 8.2.1 Sending Secure Router Advertisements . . . . .41
8.2.2 Receiving Secure Router Advertisements . . . .41 8.2.2 Receiving Secure Router Advertisements . . . .41
8.3 Redirect Messages . . . . . . . . . . . . . . . . . 41 8.3 Redirect Messages . . . . . . . . . . . . . . . . . 41
8.3.1 Sending Redirects . . . . . . . . . . . . . .41 8.3.1 Sending Redirects . . . . . . . . . . . . . .41
8.3.2 Receiving Redirects . . . . . . . . . . . . .42 8.3.2 Receiving Redirects . . . . . . . . . . . . .42
8.4 Other Requirements . . . . . . . . . . . . . . . . . 42 8.4 Other Requirements . . . . . . . . . . . . . . . . . 42
9. Co-Existence of SEND and non-SEND nodes . . . . . . . . . 43 9. Co-Existence of SEND and non-SEND nodes . . . . . . . . . 43
10. Performance Considerations . . . . . . . . . . . . . . . . 45 10. Performance Considerations . . . . . . . . . . . . . . . . 45
11. Security Considerations . . . . . . . . . . . . . . . . . 46 11. Security Considerations . . . . . . . . . . . . . . . . . 46
11.1 Threats to the Local Link Not Covered by SEND . . . 46 11.1 Threats to the Local Link Not Covered by SEND . . . 46
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Router Solicitation messages received with another type of source Router Solicitation messages received with another type of source
address but without the Nonce, Timestamp, or Signature options address but without the Nonce, Timestamp, or Signature options
MUST be silently discarded. MUST be silently discarded.
The Signature option MUST be constructed with the configured The Signature option MUST be constructed with the configured
authorization method(s), the used key being within the configured authorization method(s), the used key being within the configured
minimum (and maximum) allowable key size, and if applicable, using minimum (and maximum) allowable key size, and if applicable, using
an acceptable trust anchor and/or minSec value. an acceptable trust anchor and/or minSec value.
The configured authorization methods MUST include the trust anchor
authorization method, and MAY be additionally configured to
require CGA authorization.
8.2 Router Advertisement Messages 8.2 Router Advertisement Messages
All Router Advertisement messages are protected with SEND. All Router Advertisement messages are protected with SEND.
8.2.1 Sending Secure Router Advertisements 8.2.1 Sending Secure Router Advertisements
Secure Router Advertisement messages are sent as described in RFC Secure Router Advertisement messages are sent as described in RFC
2461, with the additional requirements as listed in the following: 2461, with the additional requirements as listed in the following:
All Router Advertisement messages sent MUST contain a Timestamp All Router Advertisement messages sent MUST contain a Timestamp

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