# l3-forwarding-xdp

L3-L4 xdp based forwarding

xdp-tools is your friend to load xdp in that case.

# INSTALL
```
apt update
```
```
apt install clang llvm libbpf-dev libelf-dev pkg-config make git bpftool xdp-tools
```

# Compile
```
clang -O2 -g -Wall -target bpf \
  -D__BPF_TRACING__ \
  -I/usr/include \
  -I/usr/include/linux \
  -c main.c -o main.o
```

# Attach to the interface
```
xdp-loader load eth0 ./main.o
```
```
xdp-loader status
```

``` BASH
bpftool map show
bpftool map dump name xdp_flow_stats

bpftool map dump name xdp_flow_stats
```