IssueTracker

Because DNS domain name is invalid, the IP address carried in the DNS response message is invalid, and invalid IP is prohibited from returning to the application layer.

User Datagram Protocol, Src Port: 53, Dst Port: 29300
Domain Name System (response)
    Transaction ID: 0xb69e
    Flags: 0x8503 Standard query response, No such name
        1... .... .... .... = Response: Message is a response
        .000 0... .... .... = Opcode: Standard query (0)
        .... .1.. .... .... = Authoritative: Server is an authority for domain
        .... ..0. .... .... = Truncated: Message is not truncated
        .... ...1 .... .... = Recursion desired: Do query recursively
        .... .... 0... .... = Recursion available: Server can't do recursive queries
        .... .... .0.. .... = Z: reserved (0)
        .... .... ..0. .... = Answer authenticated: Answer/authority portion was not authenticated by the server
        .... .... ...0 .... = Non-authenticated data: Unacceptable
        .... .... .... 0011 = Reply code: No such name (3)     <<<<<<<<<<<<<<<
    Questions: 1
    Answer RRs: 1
    Authority RRs: 1
    Additional RRs: 0
    Queries
    Answers
        e-slp.invalid: type A, class IN, addr 172.22.1.200
            Name: e-slp.invalid
            Type: A (Host Address) (1)
            Class: IN (0x0001)
            Time to live: 300 (5 minutes)
            Data length: 4
            Address: 172.22.1.200        <<<<<<<<<<<<<<<<<
    Authoritative nameservers
    [Request In: 677]
    [Time: 0.048042000 seconds]

solution：skip NXDOMAIN rcode with IP address
  source file: packages/modules/DnsResolver/getaddrinfo.cpp
  function: getanswer
  switch (type) {
    case T_A:
    case T_AAAA:
           if (hp->rcode == NXDOMAIN) {
                cp +=n;
                break;
           }
   ....