| Class | Description |
|---|---|
| ClientSubnetOption |
http://tools.ietf.org/html/draft-vandergaast-edns-client-subnet-02
|
| DNSSECOption | |
| EDNS0Option | |
| KeyTagOption | |
| NSidOption | |
| OPTResourceRecord |
EDNS Header Flags (16 bits)
Registration Procedures Standards Action Reference [RFC-ietf-dnsext-rfc2671bis-edns0-10] Bit Flag
Description Reference Bit 0 DO DNSSEC answer OK [RFC4035][RFC3225] Bit 1-15 Reserved
|
| PaddingOption | |
| PingOption |
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