HOW TO SETUP OPNsense: From First Boot to Fully Functional (with IPv6!)

[@hermitation]

I learned more about IPv6 through this video than through my own lazy I-really-should-start-to-learn-this Google sessions. Great job, thanks for sharing.

[@apalrdsadventures]

Glad it was helpful!

[@DavidBroome1978]

Same. Looking at switching internal network over

[@CaptainW_rCrimes]

I learnt more about ipv4 then I did at a university

[@NetBandit70]

The one guy who gets that .local is reserved.

[@JoaquinVacas]

As long as you use a dot between, there should not be any problem. For example, instead of .local you can use .domain.local, so devices should be: device1.domain.local, device2.domain.local and mDNS would still be mdnsdevice.local

[@CRK1918]

pfsense will also give you some explanation not to use it.

[@ImperiumLibertas]

Reserving .local is one of the biggest blunders in computer networking I can think of

[@KeithTingle]

You are a CLEAR communicator. I am sure you are not the only person advocating for IPv6 on YT but you are the only person I follow that covers this topic and its great, would love to see something similar for pfSense users, I am a little lost with IPv6 & pfSense

[@gjvdspam]

Yes! This is a proper vid. No music, good sound. You manage to explain in a nice manner, enthusiastic, clear voice, knowledgeable, to the point, the right ratio of prep and free willy. Like it a lot, learned a thing or two too.

[@UnderEu]

Suggestions for a next video: - Going IPv6-only, how to add 464XLAT w/ NAT64 + Tayga for obsolete IP connectivity. - IPv6 multi-homing: Using more than one WAN link and how to address that (no pun intended) on the LAN. And that's not something you can provide on a single video but I wish every network/tech creator in this platform put the same effort as you for talking about the current Internet Protocol, instead of ignoring it with all their forces and continue putting even more content like it's 1970. Keep up with the excellent work, the real hero of this platform regarding ACTUAL current IP technology. :)

[@apalrdsadventures]

Tayga is available in OPNsense but not nearly as performant as Jool, which being a Linux kernel module isn't available on OPNsense. But it's definitely an option, and Tayga can act as either side of a 464XLAT setup. Multihoming is a bit more tricky, due to combinations of IPv6 being really designed for you to use BGP instead (the correct way to multihome) and bsd pf having quirks around gateway addressing and source-address-based routing and stuff like that. So both are on the todo list, but behind the more basic stuff. But thanks!

[@bobcauthen]

Well done... no one has covered setup covering rules (including what WAN looks like) AND include IPv6. Thanks for making this!

[@vaughnbay]

Good vid! It is easy to see why the general computing public has stiff armed IPV6 for years. It is complex! You did a good job of explaining it.

[@berniemeowmeow]

Great video! OPNsense looks a lot more intuitive than I was expecting. Will give it a try.

[@apalrdsadventures]

The UI is really good! It just has a ton of features packed in that it can be intimidating.

[@sirsquirrel0]

Dude. What a great video. I was trying to get SLAAC working in my environment and it was missing the Router Advertisements enablement. It’s all sorted now and I’m all fully up and running using ipv6. Todays objectives are complete 😎

[@LilaHikes]

I bought a Protectli on my own accord 2 years ago for my home network. I've been an extremely satisfied customer. And OPNSense is a godsend vs the fork it is derived from. Even though I have (obviously) already set mine up, I always get something new by watching these types of videos. Many thanks.

[@martymccafferty7510]

Thanks for the IPV6 setup walk through.

[@apalrdsadventures]

No problem 👍

[@NetBandit70]

OpnSense suggestions: IPS/(IDS), logging, SIEM Traffic capture (PCAP) for compliance/analysis Modern, secure proxy (not just http)

[@Mikesco3]

I'm really grateful for the info on IPv6, specially when you were talking about it in direct application, you already cleared a few misunderstandings I had.

[@onkelfabs6408]

More topics: - Masquerading with chained routers - IPSec Client to VPN Provider - Static Routes when using VPN - VLAN - Load Balancing - Separate server subnets

[@camaycama7479]

Juicy!

[@elcapitanomontoya]

New OPNsense user here - was losing my mind about port forwarding and was ready to give up before watching this. This is an excellent video for explaining how it works and getting it set up!

[@apalrdsadventures]

Glad I could help!

[@Felix-ve9hs]

25:14 if you leave the "Domain search list" field empty, the domain of the OPNsense hostname will be used. And it is also possible to add multiple domains to the field :)

[@apalrdsadventures]

Checking the box to use the settings from DHCPv6 will use OPNsense's own IP for DNS and domain, because that's the default for DHCPv6.

[@gzoechi]

I watched a few of your videos lately and find them quite educational and pleasant to watch. Great stuff. I'm also interested in the topics you mentioned at the end.

[@gustersongusterson4120]

Hell Yeah! Learning opnsense has been on my to do list. All the requested video topics on open sense that you mentioned are great. Maybe a short video about integration with Tailscale or headscale?

[@rapacious_rapscallion]

One of the best OPNsense intro videos I’ve seen to date. Thanks for putting this together. Can you also tackle the topic of using wireless mesh routers as access points in an OPNsense environment in a future video? Thanks.

[@fedemtz6]

I would love a video on your lab setup focusing on dhcpv6 prefix delegation for testing routers. I have yet to watch your video on your network so it might be there

[@apalrdsadventures]

It's not something I've talked about yet, but I could probably make a little video on that

[@freakbyte]

Easy to understand as usual, looking forward to the next OPNsense video. Thanks!

[@MaigoManville]

Great video! I hope you can cover hosting multiple web servers behind OPNSense and complete VPN setup next.

[@apalrdsadventures]

Both on the list!

[@d3xbot]

OOH Yes! Can't wait for this series!

[@corsgdgr]

if its possible i like to see multiwan setups for fail over or/and bonding. keep up your excellent work!

[@clarkanton9595]

It would be great to hear your thoughts and explanations for using haproxy to deliver both a layer 7 by host header and layer 4 using SNI

[@shephusted2714]

you should cover ram allocation and ids/ips - suricata is multi threaded and uses a lot of cpu, also think about pkt cap - you probably want a dedicated pkt cap box ahead of the opnsense box - selks works - you can do pkt cap on opnsense but better to have a dedicated machine - think about doing ha opnsense, think about setting up ntp with a usb gps dongle - opnsense does do link agg well so you may be able to add your phone and get faster speeds with dual wan - the licensing is great with opnsense and it is rock solid - updates always work. it is a great distro to resell - building out a hyper opnsense box with a few 2.5 but also 4 40gbe would be a nice way to go for some smb and prosumers but it can be done for less than the protechli mini pc and this is where you want to go eventually - ws, dual nas and vm server all on 40g

[@PortsmouthHarbourBoats]

Been running opnsense here for a few years now. using an HP prodesk 600 2.5 with a quad Intel pro1000 and now i350. rock solid 1gb FTTP

[@martymccafferty7510]

I love OPNsense. Thanks for this video.

[@Doesntcompute2k]

Clustering your OPNsense fw would make a good video. And automated (config) backups of said device. I've always put an external USB flash memory stick for the config backups of pfSense and OPNsense. You could ALMOST do a full series just on add-ons/extensions to pfSense/OPNsense alone. Setup of DNS fw, logging, yada About to move my main (and 2nd to last!) pfSense fw to OPNsense. Should be "fun." 8 10Gbps, 6 1Gbps, and 1 1Gbps admin port. I love old, used Netscalers and F5's. LOL I've moved nine other of my firewalls to OPNsense. I only need to keep two pfSense (current/prev-version) and they will of course be VMs.

[@Mikesco3]

Could you tell briefly what makes you prefer opnsense over pfsense?

[@yakikadafi6269]

@@Mikesco3 could you tell us your preference and why?

[@martymccafferty7510]

Using IP aliases make the firewall rules more readable

[@FrankMather]

Awesome Job, thank you. I'm a OpnSense noob. this helps a lot.

[@davecreese2383]

Great information. Helpful comments too. Thank you. I have my weekend project.😊

[@En-Pea-Sea]

Headphone jack can be used for on-hold music provider or overhead pager, alarm siren, all sorts of cool things.

[@wkipo]

unfortunately I only can like this video once. Great Job!

[@BrianG61UK]

I'd like a video on using DNSCrypt rather than DNS over TLS. For VPN server in the router I like either WireGuard or 2nd choice OpenVPN.

[@apalrdsadventures]

DoT is an RFC standard and more widely used than DNSCrypt

[@Stev.3n]

May have to go give this a go after the recent PFsense changes.

[@robertpiper6860]

Lol I just fail doing this yesterday! Perfect timing!

[@ЮраПивненко-и8м]

alll good,waiting for next part!!

[@apalrdsadventures]

Working on it!

[@sneezingfrog]

Excellent content, well presented. Really appreciate you putting this together.

[@vaidkun]

want to see more IPv6 stuff. for example, vlans using ipv6 subnetting.

[@LakedaimonII]

As far as i know you dont need subnetting. Your /48 /54 or whatever would be your prefix provided by your isp, has 64-48bits (2¹⁶) reserved for your subnet. So, u Will have 2¹⁶ subnet and every single One has 2⁶⁴ Client. You could subnetting ipv4 style but Is not necessary/raccomanded/useful.sry for my english.

[@apalrdsadventures]

You don't subnet the same way as in v4 (essentially randomly + NAT), you end up with either a subnet id (for small sites) or a hierarchy of what the nibbles mean (on more complex routed sites). It's much more organized and easy to follow.

[@vaidkun]

@@apalrdsadventures so how do you do network segregation with vlans and ipv6?

[@LakedaimonII]

@@vaidkun same as ipv4, except you dont need a broadcast ip. You still have a network ipv6 address like 2001:db8:acad:1::/64 - 2001:db8:acad:2::/64 until 2001:db8:acad:ffff/64. I.e. 2001:db8:acad:1::1 Is the router interface and the 2⁶⁴ Minus 1 are the availables host address.

[@apalrdsadventures]

Subnets are /64, and the ISP gives you something larger (/56, /60, ..) so you can create subnets out of the remaining bits in the address. With a /56 you can create 256 subnets for your extra interfaces/vlan interfaces.

[@dozerd42]

Great video! I would love to see static IP setup and configuration on Opnsense for homelab servers. I just setup a Proxmox node, I thought I assigned it the correct static IP and MAC combo, but I might need to fix it. I have no idea how to change the static IP configuration from the leases page.

[@apalrdsadventures]

Proxmox is a bit of a special thing since it does name-resolving in the cluster (even for a single node) using the hosts file, and isn't really designed to deal with DHCP (even static addresses). So that could be related to your issues.

[@dozerd42]

@@apalrdsadventures thanks for the response! I joined the Discord, and I may ask further questions there about Proxmox soecifically. Would definitely love a continuation of this video with static IP setups in Opnsense.

[@laszlotakacs668]

Hy! Great video! In the future, i'd like to see a full config tutorial on how to make a config like pfBlockerNG on pfSense. So many people are like that plugin, and sice it isn't here in OPNSense (but I hear it can be configured the same but just not through a dedicated plugin) a howto on config (IP Block, DNSBL, GeoIP) may be useful. I am very interested in it, too.

[@asdvhoiwe]

Thanks for this video, I've been trying to learn more about networking and this has been super helpful for me : )

[@21Lettere]

What do you think about IPv6 and VPNs? (like WireGuard, OpenVPN). How can we tunnel all our data leaving the firewall into our personal VPN and be sure that no data leaks outside?

[@ronaldvargo4113]

When are you following up on this. I would like to see how you stood up IPv6 on OPNsense and your VLAN strategy.

[@apalrdsadventures]

In general this is how I did the basics of it, but the next video will be on subnetting and network management with subnets. Probably will be ~3 weeks for that video, depending on how many other projects I'm working on.

[@timeobserver8220]

Duuude I learnt sooo much about IPv6 in this thanks

[@BrandonPeccoralo]

Great video. Only comment is I have experienced nightmares with the Intel i225 series, but if any, v3 is the safest to go with

[@JuanCarlosHerediaMayer]

Thank you very much for sharing this very useful video. You made my day. Keep it going.

[@cmespy2005]

Awesome job

[@camaycama7479]

You're the man! Congrats 👏

[@allaboutcomputernetworks]

Thank you so much for making this lovely video!!....👍

[@apalrdsadventures]

Glad you like it!

[@Tntdruid]

So much great info 👍

[@OmarMunoz]

great video thanks for taking the time to go through config with explanations.

[@fishmonkeycow9246]

Great video! Would be cool to see how you set a vpn on it, wireguard or something along those lines :)

[@asbestinuS]

Thanks for the video! I'd like to see IPSec with mobile clients / captive portal / wlan controller / useful apps or software packets? Thanks!

[@autohmae]

1:50 audo jack output on a firewall... I know their used to be an open source project which could use audio background sounds for monitoring. Say what ? Well, it would have different background sounds it would play constantly, the audio level or how often it repeated the background noise would correspond with events. For example the amount of network traffic corresponds to the sound of a waterfall. The more network traffic, the louder/wilder the waterfall got. The number of 404 responses on a webserver would correspond with the sound of a frog, etc. 🙂

[@CAMOBAP795]

That's impressive! Thanks a lot for sharing your knowledge! P.S. baremetal vs VM Firewall?

[@Sevalecan]

I'm sitting here setting up my opnsense nested behind my pfsense router until I'm ready to drop it in fully working. I'm sure there's any number of people who would say "don't do that just put it on the WAN and figure it out", but I already figured out ipv6 subnetting and larger than 64 prefix to fix routing and IP assignment to the nested LAN, and I even had it almost working yesterday minus DNS... And now the routing is not working again. So, let's see what you got in the troubleshooting section of the vid.

[@RupertoCamarena]

Please more opnsense Videos ❤️✌🏾

[@apalrdsadventures]

I'm working on them!

[@achillesserrano4746]

Awesome demo

[@JamesTenniswood]

Really interesting, thanks for sharing!

[@jagdtigger]

Not to take away from the videos value or anything, but for a firewall id use something that values stability and security above update frequency and bleeding edge features...

[@apalrdsadventures]

Unless you're using development builds (OPNsense is open-source after all, so you are free to), it's not a rolling release. They publish new versions with feature updates every 6 months and continuously publish security updates for current and several previous versions with support going back ~4 major versions. They are just able to get new features introduced in under a year and release when they say they will.

[@jagdtigger]

​@@apalrdsadventures That release cycle sounds like a desktop OS, for a router i think a slower one is better. Sometimes less is more.... ;)

[@apalrdsadventures]

In general they are doing updates which track with FreeBSD's releases. FreeBSD's releases tend to be yearly in the spring, so they are following that with a summer OPNsense release.

[@alexfair]

Hello good friend, thanks for the great video. My use case was not covered by your excellent content. But if you could please help me with the following that would be great. OPNSense configuration: Bare metal install (no issues with this part), the device has 6 network ports, 1 will be used for WAN, how do I treat the other 5 ports like a traditional switch? Must I use a bridge?

[@Prowlyi]

Incredible overall

[@protacticus630]

Thank you very much! Does this setup support port forwarding or require some additional changes?

[@luigitech3169]

Thanks for the video, luckly i don't have to use ipv6. I prefer adguard for dns stuff

[@teemuhyvarinen4408]

Would love too see Zerotier edge device/ network routing done with Opnsense, any chance? 😊

[@apalrdsadventures]

Zerotier isn't something I use myself, I actually use Nebula instead

[@mzs114]

They changed their license, instead do consider Netbird, they are new and have a dfsg approved license.

[@camaycama7479]

​@@apalrdsadventures built-in Wireguard is better than nebula right ? Why choosing nebula over wireguard ?

[@apalrdsadventures]

eh it depends on your use case. Nebula is designed to make a point to point routed network without any previous knowledge of the other nodes in the network, other than the lighthouse. It also adds features like identity to its certificate. Wireguard provides the absolute bare minimum to pass traffic and provides nothing else for managing and discovering endpoints and configuring routes. Some platforms like Tailscale build on the Wireguard crypto to provide a lot more, but they also introduce the single point of failure Headscale server. OpenVPN is often hated for being slow, but this is partially because it provides a ton of useful features for managing remote user access like server-side configuration of client routes, enterprise user authentication (usernames/passwords and connections to identity databases), and things like that. Nebula (and OpenVPN) also use AES instead of ChaCha cipher, which is significantly faster if you have hardware acceleration for it. Wireguard stays fast by implementing no features.

[@CancunManny]

After watching this video I ended up with more questions than answers. Seems this video is great at explaining how things should be if all went correctly, but doesn't seem to talk much about what to do in case things are not the way they are supposed to. Somehow my computer with ethernet cable connection is getting an IPv6 address, but the address doesn't seem to match with ANYTHING on OPNsense or with my ISP modem/router.

[@MaeveFirstborn]

If I had to guess, the headphone jack is so you can put it on a sound bar and hear the notifications from the power cycling?

[@InsaiyanTech]

Man I wish you showed how to virtualize it since that’s the route I’m trying to do this

[@BogdanSerban]

Man I would pay to learn everything about networking from you. Do you consider making courses?

[@Cynyr]

Does opnsense handle ipv6 prefix delegations in some sort of semi intelligent way? by that i mean if i punch a hole for port 666 to my laptop and my PD from my ISP changes do i need to go an edit all of the firewall rules? what if i have an android/iphone/windows computer that is constantly re-gen'ing it's IPv6 addr, does opnsense support ddns for lan clients via SLACC?

[@phiwatec2576]

Opnsense does support a alias type called dynamic host. This allows you to specify the second half of the v6 address and opnsense will automatically add the current prefix.

[@apalrdsadventures]

You can also create an alias for a MAC address, and it will resolve to all of the IPv4/IPv6 addresses of that host.

[@joshxwho]

The headphone jack is so you can listen to the packets, have you not seen the movie Hackers?

[@HBTechnoDude]

What can you do if your ISP doesn't give you an IPV6 prefix delegation?

[@OlaviEsker]

As a home user, I have not understand the benefit of using IPv6 over older IPv4 ?

[@bar7381]

Thanks Destiny

[@mohamedfarhanal-subaey1670]

thank you for great video and would you please clear it for me that I have fiberoptic device work as bridge with privet ip If I configure opnsense devise PPPoE could I get public ip?

[@MiroslavIvanovimbmf]

Greetings, what is the software do you use for drawing diagrams? Thank you!

[@apalrdsadventures]

I use draw.io but the desktop app version

[@aperson1181]

Is Opensense already pre-installed? Is it worth it to go from ER to OpenSense?

[@ltonchis1245]

Zero Trust end to end would be nice for OPNsense

[@apalrdsadventures]

With proper zero trust, OPNsense isn't involved at all

[@ltonchis1245]

@@apalrdsadventuresthanks for the response i've been watching your videos forever, but I meant a complete end to end zero trust network setup from creating the vlans to host the lxc to routing the ports across other vlans to access the resource

[@apalrdsadventures]

Ah that's a bit different than a 'zero-trust network architecture' that's a sorta IT buzzword right now. In that setup, each node is responsible for its own session validation and the network infrastructure does a lot less (since firewalling is end to end and not a box in the middle).

[@JPrez-io6qj]

First, thanks for the video. I got my IPv6 going from ISP to LAN finally! One question I don't seem to understand, around the 33:10 mark you mention a specific IPv6 IP and how its called different things on different OSes. Does this auto generated IPv6 SLAAC IP never change? You made the rules to allow traffic in - but on a restart of the laptop or after so many days/hours will this IP change? In my head, normally you have to map a MAC address to a IP so it gets the same one everytime.

[@apalrdsadventures]

Basically, with SLAAC the router advertises the prefix (/64) and nodes are free to chose their own suffix (last /64 to make a /128) using a number of algorithms of their choice. A very common algorithm used to be EUI64 (basically, take the MAC address and add ff:fe in the middle to make it 64 bits - xxxx:xxFF:FExx:xxxx). A lot of servers and Linux server-focused distros do this, as well as IoT devices with more minimal network stacks. Often you can guess the address for IoT devices based on the MAC address sticker on the box. The other common option is called 'stable privacy', where the host takes the hash of the prefix + some internal and unique but stable identifier like a serial number or uuid or mac address to come up with its suffix. This is stable over time, but can't be guessed, and is also guaranteed to change on new networks (so the suffix can't be tracked as the device moves across subnets). This is the address you want to use for incoming traffic, but it will change if the prefix does. The temporary address are randomly generated and will change regularly. If an OS is using non-EUI64 addresses it should have both a stable privacy and a temporary address. I don't recall what Windows calls them. Linux denotes the 'temporary' addresses in `ip a` and macos denotes the stable addresses as 'secured'.

[@camaycama7479]

Thank you! Question, what software you use for your diagrams drawing?

[@apalrdsadventures]

draw.io

[@UCcdTp7XpCkVLkaRCsDcifFg]

connect wan using wifi and lan using eth is posible? for router/firewall travel

[@mtartaro]

Can you cover - Dynamic routing protocols

[@apalrdsadventures]

Internal (OSPF / friends) or external (BGP)?

[@goodcitizen4587]

way cool, thanks

[@JorgeBeyoglonian]

How to use the other ports of the router as extra LAN ports.

[@Voigt_Analytics]

Great video! Can you help me with my OPNsense / FreeBDS driver problem? I'm using a Sophos XG 125w firewall with OPNsense. But I can't get the Wifi interface working because of missing drivers; vendor = 'Qualcomm Atheros'; device = 'QCA986x/988x 802.11ac Wireless Network Adapter'

[@apalrdsadventures]

In general FreeBSD / OPNsense does not have a lot of functional network drivers. I wouldn't expect to get it working.

[@joanandestin4201]

What is the best way to move from pfsense to opnsense?

[@onkelfabs6408]

You of all guys would happen to know if it can run on a dual core thin client. Does it?

[@eDoc2020]

If it's a 64-bit PC platform it should work.

[@isithardtobevegan53]

I was unable to get IPv6 from my ISP on my OPNsense

[@JoaquinVacas]

Main issue with OPNSense is Wireguard as isn't as fine as OpenWRT is, sone complex routing for that (and even Tailscale) and there's no Avahi, so for example I can't repeat mDNS from a printer to other VLANs without repeating the whole networks mDNS between all damn networks themselves... But I really love it, thinking about to migrate OpenWRT to full OPNSense + CARP in a Proxmox cluster to get almost zero downtime.

[@apalrdsadventures]

My experience with OpenWRT is that the functionality is all there in packages but the UI is severely lacking compared to OPNsense. There are Linux programs which will do almost anything, and you can install them, but that doesn't mean it's well integrated into the UI / distribution.

[@JoaquinVacas]

@@apalrdsadventures No, it is not. It's a mixed bag, since it's designed for embedded devices, there's no decent way of performing upgrades compared to OPNSense. Also, I need Unbound for getting multiple domain resolution which is not working in OpenWRT's dnsmasq and using unbound under OpenWRT has to be done with some kind of wizardry to get it working without messing up dnsmasq+DHCP... I will go with OPNSense this winter, as I will use the integrated HAProxy with it. Need to get it running in my lab these days for debugging/testing all my config until it's perfect for day to day usage. Also, love the diagnostics and reporting tools in OPNSense, makes everything more "visible" instead of just "working"... or not.

[@Viking8888]

I can't seem to find any info on my particular use case with OPNsense and you appear to know a thing or two, so I'll ask you. I have gone over multi wan failover and load balancing and had it working by using the docs and also from watching many videos, but then I watched this video and saw that using unbound dns would give me a more secure dns, so I did what you said and also removed the dns entries in system ---> settings ---> general, but it borked my ability to bring in anything from the internet. So I started fresh and set things up with unbound in mind first and then added my neighbours internet connection as failover. When my WAN connection is disconnected, opnsense won't switch over even though I set "Allow default gateway switching". This setting is the only advice in the opnsense docs for unbound dns users with multiple wan connections (that I could find). Any help or even a video on the subject would be very much appreciated.

[@apalrdsadventures]

You probably need to configure multiple upstream interfaces in Unbound, it defaults to only doing queries via WAN. You also need gateway monitoring for this to work, and it might not have that configured by default.

[@Viking8888]

@@apalrdsadventures When you say multiple upstream interfaces, what does that mean exactly. As for gateway monitoring, I did have to set that up manually. It's interesting that this topic isn't one that appears to be covered by anyone, but it makes more sense to have DoT in every scenario including multi wan configurations.

[@Viking8888]

@@apalrdsadventures Turns out "Disable Gateway Monitoring" was checked. I have failover working now with just Unbound DNS entries and no entries in System-- Settings-- General. Onto another thing to learn! Intrusion detection perhaps! 😉

[@apalrdsadventures]

Unbound lets you configure explicitly which interfaces to use for outgoing DNS lookups. This needs to be set to allow all of the WANs.

[@nezu_cc]

does OPNsense support wireguard VPN? I've been using it almost exclusively for the past year and it is amazing.

[@apalrdsadventures]

It does, and it can do policy routing across the tunnel. The UI for individual clients isn't fantastic, but you can add peers and assign them to tunnel adapters.

[@ahmad1980595]

Thanks Bro

[@carldorbeus9025]

Tack!

[@apalrdsadventures]

Thanks!

[@Felix-ve9hs]

17:28 or a /59 if you are a Vodafone cable internet customer :^) I really don't understand why these ISPs have to be so scrimpy with their v6 prefixes, but here we are...

[@apalrdsadventures]

/59 is such a weird size! At least make it line up with the nibbles!

[@Felix-ve9hs]

@@apalrdsadventures Absolutely, but at least Telekom (DTAG) gives me a /56

[@hypersigil]

During setup of the WAN, "block private networks" says that it includes in the blocking "carrier-grade NAT addresses (100.64/10)". This is the space that Tailscale assigns IPv4 addresses to your Tailscale-connected clients in. I'm not too clear on whether this means that someone using Tailscale clients on both sides of the router would thus need to leave this setting unchecked. Anyone understand this?

[@apalrdsadventures]

The prefix 100.64/10 is formally assigned to be used by ISPs for carrier grade NAT. Tailscale is squatting in an improper IPv4 semi-private range (they should be using the RFC1918 space, 10/8, 172.16/12, and 192.168/16). But no, it's only a filter on packets entering/leaving that interface, not via tunnels which run over that interface.

[@hypersigil]

@@apalrdsadventuresThanks for the quick and clear reply! Your video and style of explanation is by far the best I've found on these topics here. You're clear and explain what's important without wasting time or skipping important stuff. Really looking forward to more of this. I looked at Tailscale's FAQ, and their explanation for the use of the ISP CG-NAT space is "Philosophically, Tailscale is a service provider creating a shared network on top of the regular Internet."

[@ShujitoDM]

Hi theere! I've got two isps, both spew a /64, one I can configure through pppoe and it results on ipv6's on the lan, the other doesn't do pppoe just dhcp and dhcp6, can't get to have ipv6 work on that one. I can give up and just go with ipv4 but I want to do load balancing with ipv6 too. Can anything be done about that?

[@apalrdsadventures]

One of the problems you'll see is that IPv6 addresses are globally scoped and not NATed, so whichever ISP you use to assign IPs to clients will be the ISP that traffic must go out of. For failover it's common to use NPTv6 on the second WAN, so traffic gets address translated on the backup, but you can also assign certain WANs to specific LANs or specific clients for load balancing.

[@ShujitoDM]

I might need to research more on all of this, I understand most of the theory but not too much on practice, maybe I'm just too used to how my decos handle bridging ipv6's by just adjusting a configuration.

[@martymccafferty7510]

I change the management IP to a different IP than the fw lan IP.

[@faisaltaufiqAbdi]

which one is better? , to put opnsense before mikrotik or to put opnsense after mikrotik, the purpose is to protect Local Area Network and server, thanks before

[@apalrdsadventures]

OPNSense is more of a firewall and Mikrotik is more of a router. Generally the firewall goes first.