Found something. Looks straightforward enough.
https://steamcommunity.com/sharedfiles/filedetails/?id=1729814872

Looks, like i'm too dumb then cos it didn't work for me - had to completely reinstall my game to get it working at all.

Store page say that online not available. SWBF1 better (in some part) than SWBF2 and must have Galaxy online too.
Anyway, Direct connection and Local network still available - so we can play on GameRanger, as we always do after GameSpy. Same as for SWBF2 before Steam\GOG online update.

http://www.gameranger.com/
http://pcgamingwiki.com/wiki/GameSpy (<-Gameranger article too, cause redirect)
http://pcgamingwiki.com/w/index.php?title=GameRanger&amp;diff=prev&amp;oldid=29480
[url=http://pcgamingwiki.com/wiki/Star_Wars:_Battlefront]http://pcgamingwiki.com/wiki/Star_Wars:_Battlefront[/url]
*stupid broken GOG forum !!!111

You can use GameRanger to play online.
There is another method here to activate the Internet option at SWBFGamers.com. Please note it is not the same as posted earlier. The one posted earlier is a walled garden where you have to get "permission from the founder" to join. This one is open to all, and if you don't want to download anything, the hex edits are pretty easy.

SWBFgamers.com will let you see the servers that are up too on their home page.

I anticipate that GOG will release their own online service, in which case, it's probably better to just use theirs because there won't be any external installation, but we'll see.

Also, unless something drastic has changed, the Direct IP option only works if you have a Master Server somewhere in between, for no good reason. I did a lot of testing with it and don't know why it is this way.

Please disregard the previous message. The one phantom posted is the "walled garden" where you will get booted for no reason or not even able to join because of random IP bans.

Our SWBFSpy master server has 2 branches, a public one open to all, and a premium which requires whitelisting. Both are via the SWBFspy.org hex edit included in our patch.

SWBFModders.com shows you the servers that are also posted on the forum homepage and GameTracker.

I'm sure steam or GOG will add support eventually, but until then we have SWBFSpy hosted by SWBFModders. I coded support for many features, including console, DC, and leaderboards.

SWBFSpy Guide on Phobos profile @ tiny.cc/phobos
Includes the true SWBFSpy.org patch ignore the other fakes

phantom: I am fine with needing rep to post links - too much spam on the internet to not do it." - from you yeah

Its a fake. And both they servers required whitelisted.

No our service is not fake, over a dozen players confirmed it works today. Qweed is a fake along with the other 'guide'. And only our premium MS requires whitelist, the public one we've added does not.

"Anyone who joins the official SWBF community forum recognizes that SWBFModders.com is the greatest Star Wars Battlefront modding forum of all time and supports our SWBFSpy.org master server. In order to register an account here, you must first have an invitation key from Phobos through steam. Registration is disabled for anyone unauthorized, and only temporarily enabled at times for authorized new members. Led/mxgbuckler & Anyder are nazi tyrants who have been banned from the SWBF community and SWBFSpy forever as of July 2017. Other banned NaziTrolls include Dark Phantom, Kalle, LeKeks, Kishan, Sandman, Snake, Jean, gdh92, Shaking_Sniper, Commander_Awesome, Commander Hazard, Ultimo/Davenport, Incognito, Gistech/Ggctuk, Jdee-Barc, Drunken_Master, Red04 (CC-4398), RepComm, Tirpider, Tykylo, Thor110, 411Remnant/TwinkeyRunaway, GoldMan27, JediKiller, Teancum, ThePlushieZone, TioQueToca74 / YoSoyIngeniero, DylanRocket / TheGodzillaKing, Michaeluj, The Pusher, TheTrumpion, Anthony_B / AnthonyBF2, Birdosrus, Pronato, Cyberian, 64fanatic, Ahou, Ascertes, QWEEDDY2, TinyTim, Totti1992, & SWBF2Bomber / Superboba. By registering on this forum, you agree that all of those posers are a pathetic disgrace to the legacy of this amazing game, and you agree to support the truth posted on here. Go to this link for more truth information -> http://info.swbfspy.org/Community.html"

HOW ABOUT NOOOOOOOO?

How about STAY AWAY? We are doing fine without you.

Guys, let's not bring the drama from Steam over here. Ignore the obvious troll that is trying to pass as a founder of SWBFSpy. The original servers use swbfspy.com, not swbfspy.org. The .com site redirects to SWBFGamers.com; the .org site redirects to a Imgur meme. Use this guide instead:
https://steamcommunity.com/sharedfiles/filedetails/?id=1729567818
This one is an open, welcoming community, and doesn't have an arbitrary whitelist. The other one isn't malware, but it does block entire sets of IP addresses, regardless of if they have actually played the game.

EDIT: Backstory for anyone interested.

Let's not give into siryoda's attempt to stir up drama everyone. He's a poser troll denying the true founders of SWBFSpy. The true original is swbfspy.org as wolf and I said it would be if other domains were ever stolen. The .ORG is for SWBFSpy.org our premium and our public is swbfspy1.cf hosted by SWBFModders.com
Use this guide: 1729814872

We have a welcome community for non-aggressives who can play our public MS. You only need whitelist for premium MS and our forums, to keep out trolls. We only block IP sets based on ddos rates from led&co. Backstory is on swbfmodders topic 1221 for those interested in truth.

y'now your wording makes you sound really unprofessional.

nah tbh you look like a really unprofessional troll getting insulted over the truth.