Frame 20: 236 bytes on wire (1888 bits), 236 bytes captured (1888 bits) Ethernet II, Src: REDACTED, Dst: REDACTED PPP-over-Ethernet Session Point-to-Point Protocol Internet Protocol Version 6, Src: REDACTED, Dst: REDACTED User Datagram Protocol, Src Port: 547, Dst Port: 546 DHCPv6 Message type: Advertise (2) Transaction ID: 0x867ee2 Client Identifier Option: Client Identifier (1) Length: 10 DUID: REDACTED DUID Type: link-layer address (3) Hardware type: Ethernet (1) Link-layer address: REDACTED Server Identifier Option: Server Identifier (2) Length: 14 DUID: REDACTED DUID Type: link-layer address plus time (1) Hardware type: Ethernet (1) DUID Time: REDACTED Link-layer address: REDACTED DNS recursive name server Option: DNS recursive name server (23) Length: 32 1 DNS server address: 2a01:c840:110:c1cb::1 2 DNS server address: 2a01:c840:130:c1ca::1 Identity Association for Prefix Delegation Option: Identity Association for Prefix Delegation (25) Length: 41 IAID: 00000001 T1: 43200 T2: 0 IA Prefix Option: IA Prefix (26) Length: 25 Preferred lifetime: 80000 Valid lifetime: 86400 Prefix length: 56 Prefix address: 2a01:c844:20c0:1a00:: Client Fully Qualified Domain Name Option: Client Fully Qualified Domain Name (39) Length: 19 Flags: 0x04 [CLIENT SHALL update AAAA RRs; SERVER SHALL NOT perform any DNS updates] Client Domain Name: REDACTED Dual-Stack Lite AFTR Name Option: Dual-Stack Lite AFTR Name (64) Length: 22 DS-Lite AFTR Name: aftr1.auro.orange.sk.