The tag has no usage guidance.

learn more… | top users | synonyms

1
vote
1answer
25 views

working netgraph configuration for ipfw and ng_bpf on FreeBSD

I'm trying to get a raw BPF bytecode packet filter working on FreeBSD using a combination of ipfw with ng_ipfw, ng_bpf and ng_tag. However none of the documentation or presentations I can find ...
1
vote
1answer
44 views

FreeBSD equivalent of Linux's “xt_bpf” filtering module

In Linux 3.9 there's a packet filter module called xt_bpf that can take compiled BPF bytecode and use it directly in an iptables rule. Is there any equivalent for FreeBSD's ipfw system?
0
votes
1answer
74 views

No buffer space available when using Dummynet in FreeBSD 9.3

I have a peculiar problem - as soon as Dummynet Kernel module is loaded and appropriate ipfw add pipe 1 from localhost to localhost command is issued, I no longer can ping localhost - I receive the ...
0
votes
0answers
34 views

pf.conf syntax error

I copied this pf.conf from a website rdr-anchor "forwarding" load anchor "forwarding" from "/Users/jeff/Documents/pf.rules" and this pf.rules rdr-anchor "forwarding" load anchor "forwarding" from ...
2
votes
2answers
610 views

Restart/reload IPFW remotely via ssh without losing connection

Is it possible to restart IPFW or reload its script remotely via ssh connection without loosing current connection?
1
vote
0answers
2k views

Installing Dummynet on Linux Ubuntu

I'm new to Ubuntu and I'm trying to install dummynet. I cannot however find a tutorial for Ubuntu. I've tried to follow this tutorial http://goo.gl/ZzKrpk however I get an error when making a kernel ...
1
vote
2answers
844 views

FreeBSD ipfw keepstate vs setup keep-state

A lot of examples where people are using keep-state with setup together. For example: ipfw add 1 allow tcp from any to me 22 setup keep-state Because of setup, this rule will allow only SYN ...
2
votes
2answers
219 views

quick filter of IP that's causing sendmail DOS under FreeBSD

I've got what appears to be a malicious/spam host that is overloading my Sendmail server causing it to refuse connections to other hosts. I'm overloaded by connections from one particular IP address. ...
1
vote
1answer
153 views

ipfw on Mac OS X 10.8

I'm trying to setup local transparent proxy with ipfw and squid and ran into some problems. I have a single rule 00100 fwd 127.0.0.1,3128 log tcp from any to any dst-port 80 but it either gets into ...
3
votes
1answer
253 views

IPFW Port Forwarding

This is my situation: I want to connect to an OpenVPN server from my office (we're using a proxy, only ports 80 and 443 are allowed). Server IP address is: 176.31.250.232:843 My static IP address ...