Ubuntu Server LTS 16.04 上的 DHCP 配置问题

Question

我目前正在设置一台有两个接口的机器。其中一个接口连接到互联网，另一个接口连接到通过 DHCP 管理本地网络的交换机。

DHCP 服务器正确出租 IP 地址，但计算机本身无法 ping 通本地网络之外的计算机。既不通过 DNS 名称也不通过 IP 地址。

我已经在 systemctl 文件中启用了 IPv4 转发，所以我不确定还可能缺少什么。我不太熟悉在 Linux 上设置这类东西，所以我想知道是否可以获得一些帮助。看来我还缺少一些东西。下面是我的 dhcpd.conf 文件。

注意：此服务器也将是 TFTP 服务器，这就是为什么我在此文件中包含所有额外内容的原因

option space PXE;
option PXE.mtftp-ip code 1 = ip-address;
option PXE.mtftp-cport code 2 = unsigned integer 16;
option PXE.mtftp-sport code 3 = unsigned integer 16;
option PXE.mtftp-tmout code 4 = unsigned integer 8;
option PXE.mtftp-delay code 5 = unsigned integer 8;

option arch code 93 = unsigned integer 16;
use-host-decl-names on;
ddns-update-style interim;
ignore client-updates;

# option definitions common to all supported networks...
option domain-name "xxxx.xxxx.xxxx.com";
option domain-name-servers ###.###.12.30,###.###.12.8;

# Specify subnet of ether device you do NOT want service.
# For systems with two or more ethernet devices.
# subnet 136.165.0.0 netmask 255.255.0.0 {}
subnet 192.168.1.0 netmask 255.255.255.0{
    option subnet-mask 255.255.255.0;
    range dynamic-bootp 192.168.1.10 192.168.1.100;
    option broadcast-address 192.168.1.255;
    default-lease-time 21600;
    max-lease-time 43200;
    option routers 192.168.1.1;
    next-server 192.168.1.3;
    include "/etc/dhcp/worker-reservations.conf";
    class "Legacy" {
        match if substring(option vendor-class-identifier, 0, 20) = "PXEClient:Arch:00000";
        filename "undionly.kkpxe";
    }
    class "UEFI-32-2" {
        match if substring(option vendor-class-identifier, 0, 20) = "PXEClient:Arch:00002";
        filename "i386-efi/ipxe.efi";
    }
    class "UEFI-32-1" {
        match if substring(option vendor-class-identifier, 0, 20) = "PXEClient:Arch:00006";
        filename "i386-efi/ipxe.efi";
    }
    class "UEFI-64-1" {
        match if substring(option vendor-class-identifier, 0, 20) = "PXEClient:Arch:00007";
        filename "ipxe.efi";
    }
    class "UEFI-64-2" {
        match if substring(option vendor-class-identifier, 0, 20) = "PXEClient:Arch:00008";
        filename "ipxe.efi";
    }
    class "UEFI-64-3" {
        match if substring(option vendor-class-identifier, 0, 20) = "PXEClient:Arch:00009";
        filename "ipxe.efi";
    }
    class "SURFACE-PRO-4" {
        match if substring(option vendor-class-identifier, 0, 32) = "PXEClient:Arch:00007:UNDI:003016";
        filename "ipxe7156.efi";
    }
    class "Apple-Intel-Netboot" {
        match if substring(option vendor-class-identifier, 0, 14) = "AAPLBSDPC/i386";
        option dhcp-parameter-request-list 1,3,17,43,60;
        if (option dhcp-message-type = 8) {
            option vendor-class-identifier "AAPLBSDPC";
            if (substring(option vendor-encapsulated-options, 0, 3) = 01:01:01) {
                # BSDP List
                option vendor-encapsulated-options 01:01:01:04:02:80:00:07:04:81:00:05:2a:09:0D:81:00:05:2a:08:69:50:58:45:2d:46:4f:47;
                filename "ipxe.efi";
            }
        }
    }
}