Пытаюсь поднять GRE между роутером и Ubuntu 20
С роутера GRE пакеты улетают, а сервак отвечает анричибл.(логи с сервера) На роутере тоже тоже видно что пакеты по 3 gre\icmp прилетают\улетают.
13:14:41.894242 IP mikrotik > Ubuntu20: GREv0, length 141: IP mikrotik_gre.5678 > 255.255.255.255.5678: UDP, length 109
13:14:41.894284 IP Ubuntu20 > mikrotik: ICMP Ubuntu20 protocol 47 port 2048 unreachable, length 169
13:14:41.894965 IP mikrotik > Ubuntu20: GREv0, length 106: gre-proto-0x4
13:14:41.894977 IP Ubuntu20 > mikrotik: ICMP Ubuntu20 protocol 47 port 4 unreachable, length 134
13:14:41.894989 IP mikrotik > Ubuntu20: GREv0, length 122: gre-proto-0x88cc
13:14:41.894994 IP Ubuntu20 > mikrotik: ICMP Ubuntu20 protocol 47 port 35020 unreachable, length 150
ubuntu@instance-20200716-1129:~$ ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
link/ether 02:00:17:00:86:31 brd ff:ff:ff:ff:ff:ff
3: gre0@NONE: mtu 1476 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/gre 0.0.0.0 brd 0.0.0.0
4: gretap0@NONE: <BROADCAST,MULTICAST> mtu 1462 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
5: erspan0@NONE: <BROADCAST,MULTICAST> mtu 1450 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
6: gre1@NONE: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1476 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/gre Ubuntu20 peer Mikrotik
ubuntu@instance-20200716-1129:~$ sudo ufw status
Status: inactive
ubuntu@instance-20200716-1129:~$ ifconfig
ens3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000
inet 10.0.0.3 netmask 255.255.255.0 broadcast 10.0.0.255
inet6 fe80::17ff:fe00:8631 prefixlen 64 scopeid 0x20
ether 02:00:17:00:86:31 txqueuelen 1000 (Ethernet)
RX packets 7146 bytes 2898696 (2.8 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 8988 bytes 5897030 (5.8 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
gre1: flags=209<UP,POINTOPOINT,RUNNING,NOARP> mtu 1476
inet 192.168.255.254 netmask 255.255.255.0 destination 192.168.255.254 -Вот незнаю откуда это вылезло
unspec 9E-65-C3-E6-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 1000 (UNSPEC)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 6 dropped 0 overruns 0 carrier 6 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
loop txqueuelen 1000 (Local Loopback)
RX packets 2256 bytes 246084 (246.0 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2256 bytes 246084 (246.0 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
network:
ethernets:
ens3:
dhcp4: true
match:
macaddress: 02:00:17:00:86:31
set-name: ens3
version: 2
tunnels:
gre1:
mode: gre
local: Ubuntu20
remote: Mikrotik
mtu: 1476
addresses: [192.168.255.254/24]
Если пытаться пинговать с сервера роутер, то растёт счётчик carrier, пинги не проходят