Static routes for routing certain requests through friendlier interfaces. The first file is the Windows batch file I originally used, and the second it the Go program I wrote to do the lookup dynamically.

add_routes.bat

REM archive.ubuntu.com
route add 91.189.92.201 mask 255.255.255.255 172.16.1.1
route add 91.189.92.200 mask 255.255.255.255 172.16.1.1
route add 91.189.91.15 mask 255.255.255.255 172.16.1.1
route add 91.189.91.14 mask 255.255.255.255 172.16.1.1
route add 91.189.91.13 mask 255.255.255.255 172.16.1.1
route add 91.189.88.153 mask 255.255.255.255 172.16.1.1
route add 91.189.88.149 mask 255.255.255.255 172.16.1.1
REM pastebin.com
route add 190.93.241.15 mask 255.255.255.255 172.16.1.1
route add 190.93.240.15 mask 255.255.255.255 172.16.1.1
route add 190.93.243.15 mask 255.255.255.255 172.16.1.1
route add 141.101.112.16 mask 255.255.255.255 172.16.1.1
route add 190.93.242.15 mask 255.255.255.255 172.16.1.1

create_static_routes.go

package main

import (
	"bytes"
	"fmt"
	"log"
	"net"
	"os"
	"os/exec"
	"runtime"
)

func main() {
	if runtime.GOOS == "windows" {
		fmt.Println("Great!  Looks like we're running on Windows.  Commencing to improve routing table. . . .")
	} else {
		fmt.Println("This program only runs on Windows for now.  Exiting. . . .")
		os.Exit(1)
	}

	var domains []string

	if len(os.Args) == 1 {
		domains = []string{"pastebin.com", "archive.ubuntu.com"}
	} else {
		domains = os.Args[1:]
	}

	for i := range domains {
		domain := domains[i]
		fmt.Println("\n\nWorking on domain ", domain)
		// Do a single lookup
		/*		ip, err := net.ResolveIPAddr("ip4", domain)
				if err == nil {
					fmt.Printf("%s ok %s\n", domain, ip)
				} else {
					fmt.Printf("%s error: %s\n", domain, err)
				}*/

		// Use LookupIP instead to get an array of IPs
		ips, err := net.LookupIP(domain)
		if err == nil {
			for i := range ips {
				ip := ips[i]
				cmd := exec.Command("cmd", "/C", "route", "add", ip.String(), "mask", "255.255.255.255", "172.16.1.1")
				var out bytes.Buffer
				cmd.Stdout = &out
				err := cmd.Run()
				if err != nil {
					log.Println("\n\nCommand failed:", out.String())
					log.Fatal(err)
				}
				fmt.Println("Added route for ", ip.String())
			}
		} else {
			fmt.Printf("\n\n%s error: %s\n", domain, err)
		}
	}
}