Hello !
I have trouble since few days with Suricata IPS in Af-packet mode. No Internet connection each times Suricata is working and impossible for traffic to pass through Suricata.
I’m working on Ubuntu Server 22.04 with a made bridge from 2 NIC and using Af-Packet to capture.
Build-info :
This is Suricata version 6.0.10 RELEASE
Features: PCAP_SET_BUFF AF_PACKET HAVE_PACKET_FANOUT LIBCAP_NG LIBNET1.1 HAVE_HTP_URI_NORMALIZE_HOOK PCRE_JIT HAVE_LIBJANSSON TLS TLS_C11 MAGIC RUST
SIMD support: SSE_4_2 SSE_4_1 SSE_3
Atomic intrinsics: 1 2 4 8 16 byte(s)
64-bits, Little-endian architecture
GCC version 11.3.0, C version 201112
compiled with _FORTIFY_SOURCE=2
L1 cache line size (CLS)=64
thread local storage method: _Thread_local
compiled with LibHTP v0.5.42, linked against LibHTP v0.5.42
Suricata Configuration:
AF_PACKET support: yes
eBPF support: no
XDP support: no
PF_RING support: no
NFQueue support: no
NFLOG support: no
IPFW support: no
Netmap support: no using new api: no
DAG enabled: no
Napatech enabled: no
WinDivert enabled: no
Unix socket enabled: yes
Detection enabled: yes
Libmagic support: yes
libnss support: no
libnspr support: no
libjansson support: yes
hiredis support: no
hiredis async with libevent: no
Prelude support: no
PCRE jit: yes
LUA support: no
libluajit: no
GeoIP2 support: no
Non-bundled htp: no
Hyperscan support: no
Libnet support: yes
liblz4 support: no
HTTP2 decompression: no
Rust support: yes
Rust strict mode: no
Rust compiler path: /usr/bin/rustc
Rust compiler version: rustc 1.65.0
Cargo path: /usr/bin/cargo
Cargo version: cargo 1.65.0
Cargo vendor: yes
Python support: yes
Python path: /usr/bin/python3
Install suricatactl: yes
Install suricatasc: yes
Install suricata-update: yes
Profiling enabled: no
Profiling locks enabled: no
Plugin support (experimental): yes
Development settings:
Coccinelle / spatch: no
Unit tests enabled: no
Debug output enabled: no
Debug validation enabled: no
Generic build parameters:
Installation prefix: /usr
Configuration directory: /etc/suricata/
Log directory: /var/log/suricata/
--prefix /usr
--sysconfdir /etc
--localstatedir /var
--datarootdir /usr/share
Host: x86_64-pc-linux-gnu
Compiler: gcc (exec name) / g++ (real)
GCC Protect enabled: no
GCC march native enabled: yes
GCC Profile enabled: no
Position Independent Executable enabled: no
CFLAGS -g -O2 -std=c11 -march=native -I${srcdir}/../rust/gen -I${srcdir}/../rust/dist
PCAP_CFLAGS -I/usr/include
SECCFLAGS
My rules (just testing rules) :
drop icmp any any → 8.8.8.8 any ( msg:“Ping Droppé”; sid:2; )
alert icmp any any → any any ( msg:“Ping loggué”; sid:3; )
All my trafic is dropped but not shown into logs files, this kind of message appears in eve.json
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but it’s really not helpfull (to me) to find problem origin, i don’t know wich rule triggers that behavior.
Does anyone knows why I have this problem now ?
Thanks !