base.txt   issue63b.txt 
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When the Cert Type field is set to 1, the Certificate field When the Cert Type field is set to 1, the Certificate field
contains an X.509v3 certificate [10], as described in Section contains an X.509v3 certificate [10], as described in Section
6.1.1. 6.1.1.
6.2.5 Processing Rules for Routers 6.2.5 Processing Rules for Routers
Routers SHOULD possess a key pair and a certificate from at least one Routers SHOULD possess a key pair and a certificate from at least one
certificate authority. certificate authority.
A router MUST silently discard any received Delegation Chain A router MUST silently discard any received Delegation Chain
Solicitation messages that do not satisfy all of the requirements Solicitation messages that do not conform to the message format
listed in Section 6.2.1. defined in Section 6.2.1. The contents of the Reserved field, and of
any unrecognized options, MUST be ignored. Future,
The contents of the Reserved field, and of any unrecognized options, backward-compatible changes to the protocol may specify the contents
MUST be ignored. Future, backward-compatible changes to the protocol of the Reserved field or add new options; backward-incompatible
may specify the contents of the Reserved field or add new options; changes may use different Code values. The contents of any defined
backward-incompatible changes may use different Code values. The options that are not specified to be used with Router Solicitation
contents of any defined options that are not specified to be used messages MUST be ignored and the packet processed in the normal
with Router Solicitation messages MUST be ignored and the packet manner. The only defined option that may appear is the Trust Anchor
processed in the normal manner. The only defined option that may option. A solicitation that passes the validity checks is called a
appear is the Trust Anchor option. A solicitation that passes the "valid solicitation".
validity checks is called a "valid solicitation".
Routers SHOULD send advertisements in response to valid solicitations Routers SHOULD send advertisements in response to valid solicitations
received on an advertising interface. If the source address in the received on an advertising interface. If the source address in the
solicitation was the unspecified address, the router MUST send the solicitation was the unspecified address, the router MUST send the
response to the link-scoped All-Nodes multicast address. If the response to the link-scoped All-Nodes multicast address. If the
source address was a unicast address, the router MUST send the source address was a unicast address, the router MUST send the
response to the Solicited-Node multicast address corresponding to the response to the Solicited-Node multicast address corresponding to the
source address, except when under load, as specified below. Routers source address, except when under load, as specified below. Routers
SHOULD NOT send Delegation Chain Advertisements more than SHOULD NOT send Delegation Chain Advertisements more than
MAX_DCA_RATE times within a second. When there are more MAX_DCA_RATE times within a second. When there are more
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solicited. solicited.
6.2.6 Processing Rules for Hosts 6.2.6 Processing Rules for Hosts
Hosts SHOULD possess the public key and trust anchor name of at least Hosts SHOULD possess the public key and trust anchor name of at least
one certificate authority, they SHOULD possess their own key pair, one certificate authority, they SHOULD possess their own key pair,
and they MAY possess a certificate from the above mentioned and they MAY possess a certificate from the above mentioned
certificate authority. certificate authority.
A host MUST silently discard any received Delegation Chain A host MUST silently discard any received Delegation Chain
Advertisement messages that do not satisfy all of the requirements Advertisement messages that do not conform to the message format
listed in Section 6.2.2. defined in Section 6.2.2. The contents of the Reserved field, and of
any unrecognized options, MUST be ignored. Future,
The contents of the Reserved field, and of any unrecognized options, backward-compatible changes to the protocol may specify the contents
MUST be ignored. Future, backward-compatible changes to the protocol of the Reserved field or add new options; backward-incompatible
may specify the contents of the Reserved field or add new options; changes may use different Code values. The contents of any defined
backward-incompatible changes may use different Code values. The options that are not specified to be used with Delegation Chain
contents of any defined options that are not specified to be used Advertisement messages MUST be ignored and the packet processed in
with Delegation Chain Advertisement messages MUST be ignored and the the normal manner. The only defined options that may appear are the
packet processed in the normal manner. The only defined options that Certificate and Trust Anchor options. An advertisement that passes
may appear are the Certificate and Trust Anchor options. An the validity checks is called a "valid advertisement".
advertisement that passes the validity checks is called a "valid
advertisement".
Hosts SHOULD store certificate chains retrieved in Delegation Chain Hosts SHOULD store certificate chains retrieved in Delegation Chain
Discovery messages if they start from an anchor trusted by the host. Discovery messages if they start from an anchor trusted by the host.
The certificate chains SHOULD be verified, as defined in Section 6.1, The certificate chains SHOULD be verified, as defined in Section 6.1,
before storing them. Routers MUST send the certificates one by one, before storing them. Routers MUST send the certificates one by one,
starting from the trust anchor end of the chain. Except for starting from the trust anchor end of the chain. Except for
temporary purposes to allow for message loss and reordering, hosts temporary purposes to allow for message loss and reordering, hosts
SHOULD NOT store certificates received in a Delegation Chain SHOULD NOT store certificates received in a Delegation Chain
Advertisement unless they contain a certificate which can be Advertisement unless they contain a certificate which can be
immediately verified either to the trust anchor or to a certificate immediately verified either to the trust anchor or to a certificate
 End of changes. 

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