Добрый день Помогите разобраться почему выдает ошибку, пожалуйста. Я учу iptables и пытаюсь разобраться как он работает. Просто маскарад не хочу делать, мне надо в учебных целях. Спасибо.
/etc/iptables.sh
Bad argument `enp4s0'
Try `iptables -h' or 'iptables --help' for more information.
строка в файле
$IPT -A POSTROUTING -t nat -s ${LAN_IP_RANGE} -o enp4s0 -j SNAT --to-source ppp0
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.250 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::523e:aaff:fe0f:5b3a prefixlen 64 scopeid 0x20<link>
ether 50:3e:aa:0f:5b:3a txqueuelen 1000 (Ethernet)
RX packets 120150 bytes 139394294 (132.9 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 83120 bytes 33720973 (32.1 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether 50:3e:aa:0f:5b:3a txqueuelen 1000 (Ethernet)
RX packets 120631 bytes 141108082 (134.5 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 84396 bytes 33804317 (32.2 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp4s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::523e:aaff:fe0f:b42e prefixlen 64 scopeid 0x20<link>
ether 50:3e:aa:0f:b4:2e txqueuelen 1000 (Ethernet)
RX packets 81788 bytes 31500986 (30.0 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 115957 bytes 141345917 (134.7 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 1 bytes 88 (88.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1 bytes 88 (88.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ppp0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1492
inet 10.102.246.170 netmask 255.255.255.255 destination 212.115.225.252
ppp txqueuelen 3 (Point-to-Point Protocol)
RX packets 8741 bytes 8688793 (8.2 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 5448 bytes 825297 (805.9 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
tun0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1500
inet 192.168.37.6 netmask 255.255.255.255 destination 192.168.37.5
inet6 fe80::f3a8:7e7b:9b8b:2903 prefixlen 64 scopeid 0x20<link>
unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 100 (UNSPEC)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 9 bytes 432 (432.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
vnet0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::fc54:ff:fe17:58a prefixlen 64 scopeid 0x20<link>
ether fe:54:00:17:05:8a txqueuelen 1000 (Ethernet)
RX packets 200 bytes 10672 (10.4 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 866 bytes 128108 (125.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
$ cat /etc/iptables.sh
#!/usr/bin/env bash
export IPT="iptables"
# WAN 1
export WAN=ppp0
export WAN_IP=91.225.234.208
# Local
export LAN1=br0
export LAN1_IP_RANGE=192.168.0.250/24
# Flush rules
$IPT -F
$IPT -F -t nat
$IPT -F -t mangle
$IPT -F -t filter
#$IPT -F -t conntrack
$IPT -F -t raw
$IPT -X
$IPT -X -t nat
$IPT -X -t mangle
$IPT -X -t filter
#$IPT -X -t conntrack
$IPT -X -t raw
$IPT -P INPUT ACCEPT
$IPT -P FORWARD ACCEPT
$IPT -P OUTPUT ACCEPT
$IPT -A INPUT -i lo -j ACCEPT
$IPT -A INPUT -i $LAN1 -j ACCEPT
$IPT -A OUTPUT -o lo -j ACCEPT
$IPT -A OUTPUT -o $LAN1 -j ACCEPT
$IPT -A POSTROUTING -t nat -s ${LAN_IP_RANGE} -o enp4s0 -j SNAT --to-source ppp0
