firewall/zones/aloes.nft

#! /sbin/nft -f

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.

# Copyright © 2018-2019 Hugo Levy-Falk <hugo@klafyvel.me>

table inet firewall {

	chain to_aloes {
		accept
	}

	chain from_aloes {
		# On passe d'abord par le checkmac pour éviter le spoof d'ip:
		#ip saddr . ether saddr != @ip_mac drop;
	}

}

table nat {
	# On nate ALOES derrière l'IP 193.48.225.214
	# attribuant les plages de ports 11135-65535 par tranche de 1700 ports.
	# On a donc 32 Ips de 10.66.0.0/27 derrière l'Ip.
	# exemple: 10.66.0.1-10.66.0.31 : 193.48.225.214
	# On peut aussi ajouter dynamiquement des éléments :
	# nft add element nat federez_nat_address {10.66.0.1-10.66.0.31 : 193.48.225.214}
	map aloes_nat_address {
		type ipv4_addr: ipv4_addr
		flags interval
	}
	chain aloes_nat {
	}
}