ipfw

Hello everyone, Experimenting IPFW, I would really appreciate some help to improve my abilities ! I actually know how to use it as a workstation firewall, but now, I would like to learn how to use it as an easy full firewall (just for experimenting). Here is an easy network map describing what...

man rc or man rc.firewall There in chapter rc.firewall is written: But the option "workstation" is there not described. But this option I find in my /etc/rc.firewall file. And I use this option. What is wrong? The help file missing the option? Or has this changed anytime in the file with a...

I'm trying to setup some bhyve guests for the first time on my 13.0-RELEASE system but the guests were unable to obtain IP addresses from the DHCP server on my router unless I disabled ipfw. It appears that ipfw was blocking the responses from the DHCP server. Google searches didn't come up...

In jail under TrueNAS 11, was mail server that can block IPs by IPFW rules. Now I move JAIL to FreeBSD 13.1, and detect that same JAIL with same settings, not allow to load IPFW inside jail. kldload ipfw kldload: can't load ipfw: Operation not permitted For JAILs managemnt use iocage...

Hi, which firewall should I choose between pf, ipf and ipfw for a home application or a small business? I've been using pf on my local laptop with a very minimal configuration, just to close every ports except the ones I need on my local network. But which one would you recommend for a...

I'm fairly new to IPFW but have read the various examples and the manual page carefully. I can't seem to find a way to log a successful connection without logging all subsequent packets. I thought the best way would be using keep-state but that doesn't work the way I intended. With IPFILTER...

Hello, Is it possible to have multi WAN with IPFW? I know it's possible with PF and PF does it well in pfSense. But I am running FreeBSD 13.1-RELEASE as my home firewall/gateway using some cool pkgs like net/kea, dns/unbound and FreeBSD's native firewall - IPFW with In-kernal NAT. Here is an...

Hello, in short: A Jail is installed. Can start and stop and connect to it. Inside its running an Apache web server. Some simple Website exists. Starting the jail and make a test like this works: printf "HEAD / HTTP/1.1\r\nHost: <www.example.com>t\r\n\r\n" also telnet <www.example.com> 80...

Good day everyone! Can't beat the following problem. Internet -> router (x.x.x.x/192.168.1.1) -> ASC server {FreeBSD12+ipfw/nat/fwd (192.168.1.12|If_Inet) + OpenVPN server (192.168.101.1|If_VPN)} -> ADM server {OpenVPN client (192.168.101.6|If_VPN) + FreeBSD12 www-server (Ip_WWW)} ->...

Dear All, I wantto migrate my local network to ipv6 network but my isp supports only ipv4. I am using ipfw. how can I nat IPV6 clients to internet? Thanks.

Dear All, I have made several sets of rules using IPFW. I've separated them into rule 1 and 2, and the rest in rule 31. What I want to do is that after restart, I would like to only have rule 31 running (with rule 1 and 2 disabled). Only after VNets are up (all the pairs and bridges are set up...

Hello, I'm new to work with jail. I try this example: FreeBSD jails: a complete example I've created the jail from another example - copied some files from the host - did a bit configuration - and it works: I can start it and connect in it with 'tcsh' command. With the example above I try to...

Hi all, does anyone know if it is possible to change the destination address for local generated outgoing traffic? I try to achieve that traffic with a destination address to 1.2.3.4 gets rewritten to 10.10.10.10. I tried to implement that rules in pf and ipfw without success. In general I...

After a couple of years, I have started to use FreeBSD again. Previously I was using Linux, and in all my servers I have installed "PSAD" package, which detect the Port Scanners IP addresses and bans them through IPTabels rules. I have searched the same in FreeBSD but does not exit. something...

Hello everyone I have the following case :) I make a multicast using ffmpeg ffmpeg -i rtmp://localhost/c1/c1 -c:v copy -c:a copy -f mpegts udp://232.1.1.3:3000 I have a multicast tcpdump -n |grep 232.1.1.3 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening...

Hello, all! I have an interesting setup that I'm hoping to get a little bit of help with. Before I start: please yell at me if some of my formatting is wonky-- I'm used to markdown, but not so much the styling that the FreeBSD Forums asks for, so if I've done something that needs to be...

Hi, is it possible to create a rule to Redirect everything is coming from <ip1>:<port1> to redirect to <ip2>:<port2> and visa versa for protocoll UDP? I am using ipfw

I know I can have ipfw rules matching the ICMP protocol and specify one or more icmptypes. But how do I also match on the ICMP type's code (those that have such)? For example I can easily match ICMP type 3 (destination unreachable) messages: ipfw add 1000 count log icmp from me to...

OK. I've read man firewall and Chapter 31. Firewall and I'm still a bit uncertain about which firewall to choose. Here's my use case: I have FreeBSD 13 installed on my Lenovo Thinkpad T-430. I alternate between the ethernet connection and wifi. Either way, I only use IPV4. I would like to be...

I am trying to do a simple test of matching mac coming from a machine connected to re0 and allowing it. I don't care if i'm able to actually use the packet, all I want is the rule number to show up in in /var/log/security so I know something is matching. The ipfw command I'm using is ipfw add 10...