使用golang.org/x/crypto/ssh连接Arista EOS交换机时认证失败的问题求助

我最近在尝试用golang.org/x/crypto/ssh包连接Arista EOS交换机，目的是登录设备后执行指定命令并获取输出。这套代码在连接常规Linux设备时完全正常，但连接EOS交换机时却一直报认证失败的错误：

error: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none], no supported methods remain

先贴出我的实现代码：

func ExecuteCommands(commands []string) string {
    config := &ssh.ClientConfig{
        User: n.Username,
        Auth: []ssh.AuthMethod{
            ssh.Password(n.Password),
        },
        HostKeyCallback: ssh.InsecureIgnoreHostKey(),
    }

    client, err := ssh.Dial("tcp", n.IpAddress + ":" + n.Port, config)
    if err != nil {
        msg := fmt.Sprintf("Failed to connect to host: %v on port 22, error: %v, Username: %v, Password: %v", n.IpAddress, err, n.Username, n.Password)
        return msg
    }
    defer client.Close()

    session, err := client.NewSession()
    if err != nil {
        msg := fmt.Sprintf("Failed to create a session with client: %v", err.Error())
        return msg
    }
    defer session.Close()

    stdin, err := session.StdinPipe()
    if err != nil {
        log.Fatalf("Unable to setup stdin for session: %v", err)
    }
    stdout, err := session.StdoutPipe()
    if err != nil {
        log.Fatalf("Unable to setup stdout for session: %v", err)
    }
    stderr, err := session.StderrPipe()
    if err != nil {
        log.Fatalf("Unable to setup stderr for session: %v", err)
    }

    output := ""

    // Start the remote shell
    if err := session.Shell(); err != nil {
        log.Fatalf("Failed to start shell: %v", err)
    }

    // Goroutine to read stdout
    go func() {
        scanner := bufio.NewScanner(stdout)
        for scanner.Scan() {
            output += scanner.Text()
        }
    }()

    // Goroutine to read stderr
    go func() {
        scanner := bufio.NewScanner(stderr)
        for scanner.Scan() {
            output += scanner.Text()
        }
    }()

    // Send commands
    writer := bufio.NewWriter(stdin)
    for _, cmd := range commands {
        _, err := writer.WriteString(cmd + "\n")
        if err != nil {
            log.Printf("Error writing command: %v", err)
            break
        }
        writer.Flush()
        time.Sleep(500 * time.Millisecond) // Give time for output to appear
    }

    // Close stdin to signal end of input
    stdin.Close()
    session.Wait()

    return output
}

我怀疑是golang.org/x/crypto/ssh包的某些配置项没有适配Arista EOS的SSH服务逻辑，但翻了很久文档也没找到明确的配置方向。有没有遇到过类似问题的朋友，或者熟悉这个包和EOS设备的大佬能给点排查思路或解决方案？

内容来源于stack exchange