Iptables QUEUE Target and Snort
- by bradlis7
I'm trying to set up a firewall with support for snort, and it is dropping all of my packets when I add the QUEUE target. I've made it like this, but the QUEUE target is not allowing the packets to be processed any further:
-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT
-A INPUT -j QUEUE
-A INPUT -j ACCEPT
# It's not allowing anything past QUEUE, as you can see below in the count.
> iptables -I INPUT -nv
pkts bytes target prot opt in out source destination
6707 395K ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:22
933 138K QUEUE all -- * * 0.0.0.0/0 0.0.0.0/0
0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0
I'm eventually going to change it to forward, but I'm just trying to get it working for now. I start snort like so:
snort -Q -D -c /etc/snort/snort.conf
EDIT: More Information
When I run it, it still sees the packets without having an iptables QUEUE target rule, but when I add a QUEUE target, it starts losing all of my packets.
# snort -Qc /etc/snort/snort.conf -N -A console
Enabling inline operation
Running in IDS mode
--== Initializing Snort ==--
Initializing Output Plugins!
Initializing Preprocessors!
Initializing Plug-ins!
Parsing Rules file "/etc/snort/snort.conf"
## === CUT ===
***
*** interface device lookup found: bond0
***
Initializing Network Interface bond0
Decoding Ethernet on interface bond0
## === CUT ===
Not Using PCAP_FRAMES
So, it says inline, but the it says it's using bond0. Inline should not require an interface, right?
