Many of these examples assume you have multiple local networks and you want to allow communication between devices in the different networks.īelow are some scenarios for creating firewall rules for your LAN/VLAN interface(s): Allow a single device on VLAN 10 to access any port of single device on VLAN 20 When you create a new VLAN or a network on another physical interface, access to all other networks are blocked by default since there are no firewall rules defined for the new network (besides hidden auto-generated ones required for DHCP to function, for instance). LAN/VLAN Rulesīy default, the LAN network in OPNsense has anti-lockout rules (to prevent you from locking yourself out of the web interface) and an “allow any” rule which allows access to all local and remote networks. You will see a list of interfaces in which you may add firewall rules. To add new firewall rules for your various network interfaces, go to the “Firewall > Rules” page. It also helps make the rules more readable since you do not have to remember that 192.168.10.10 is your laptop, PC, Raspberry Pi, etc. Aliases allow for multiple values and you can quickly change the values for several rules at the same time. If you plan to create several rules for a particular device or want to combine multiple IP/network addresses into a single rule, you may want to use aliases. It is worth noting that any IP addresses used in the examples could be substituted with aliases. I thought it would be a good idea to consolidate a variety of scenarios into a single how-to that could be used as a quick reference guide. This is especially true once you become more experienced and comfortable with writing rules. PfSense also supports high availability via CARP, so you wouldn't have to roll your own configuration-distributing scripts as you would with multiple piHole or Blockade VMs.When looking up information on how to write firewall rules in OPNsense, you may be looking for specific examples on how to block or allow certain types of network traffic rather than how to write firewall rules in general. This is less opaque than the piHole / Blockade method where you're taking their blocklist selections wholesale. There are packages like pfBlockerNG that would let you fine-tune your DNS-based ad blocking by enabling (or ignoring) specific lists. I would go with /u/djgolam's suggestion to look at pfSense. that's not going to happen very easily (as /u/sembee2 mentions elsewhere). They're extremely convenient for consumer or SOHO scenarios, where you generally have a single WAN connection and aren't too concerned about single points of failure in your network.īut in an enterprise scenario where you will want to ensure consistency of configuration/rulesets and unified reporting across a cluster of these VMs. Things like piHole and Metiix Blockade aren't really built with high availability or load balancing in mind.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |