Не понял где найти у себя этот VPN-интерфейс, по команде ip addr открывается такой список:
/ # ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: tunl0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1
link/ipip 0.0.0.0 brd 0.0.0.0
3: sit0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1
link/sit 0.0.0.0 brd 0.0.0.0
4: gre0@NONE: <NOARP> mtu 1476 qdisc noop state DOWN group default qlen 1
link/gre 0.0.0.0 brd 0.0.0.0
5: gretap0@NONE: <BROADCAST,MULTICAST> mtu 1462 qdisc noop state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
6: ethoip0@NONE: <BROADCAST,MULTICAST> mtu 1458 qdisc noop state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
7: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 66:09:c6:b0:d2:52 brd ff:ff:ff:ff:ff:ff
8: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN group default qlen 1
link/tunnel6 :: brd ::
9: ezcfg0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether ca:03:63:68:59:29 brd ff:ff:ff:ff:ff:ff
inet 78.47.125.180/32 brd 78.255.255.255 scope global ezcfg0
valid_lft forever preferred_lft forever
10: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UNKNOWN group default qlen 2000
link/ether 50:ff:20:66:e1:c2 brd ff:ff:ff:ff:ff:ff
inet6 fe80::52ff:20ff:fe66:e1c2/64 scope link
valid_lft forever preferred_lft forever
11: eth3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br0 state UNKNOWN group default qlen 2000
link/ether 50:ff:20:66:e2:c3 brd ff:ff:ff:ff:ff:ff
inet6 fe80::52ff:20ff:fe66:e2c3/64 scope link
valid_lft forever preferred_lft forever
12: ra0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br0 state UP group default qlen 1000
link/ether 50:ff:20:66:e1:c2 brd ff:ff:ff:ff:ff:ff
inet6 fe80::52ff:20ff:fe66:e1c2/64 scope link
valid_lft forever preferred_lft forever
13: ra1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 52:ff:20:16:e1:c2 brd ff:ff:ff:ff:ff:ff
14: ra2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 52:ff:20:26:e1:c2 brd ff:ff:ff:ff:ff:ff
15: ra3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 52:ff:20:36:e1:c2 brd ff:ff:ff:ff:ff:ff
16: ra4: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether 52:ff:20:46:e1:c2 brd ff:ff:ff:ff:ff:ff
17: apcli0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 52:ff:20:06:e1:c2 brd ff:ff:ff:ff:ff:ff
18: rai0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br0 state UP group default qlen 1000
link/ether 50:ff:20:66:a1:c6 brd ff:ff:ff:ff:ff:ff
inet6 fe80::52ff:20ff:fe66:a1c6/64 scope link
valid_lft forever preferred_lft forever
19: rai1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 52:ff:20:60:a1:c6 brd ff:ff:ff:ff:ff:ff
20: rai2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 52:ff:20:61:a1:c6 brd ff:ff:ff:ff:ff:ff
21: rai3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 52:ff:20:62:a1:c6 brd ff:ff:ff:ff:ff:ff
22: rai4: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether 52:ff:20:63:a1:c6 brd ff:ff:ff:ff:ff:ff
23: apclii0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 52:ff:20:64:a1:c6 brd ff:ff:ff:ff:ff:ff
24: ntce0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
link/ether b6:ca:8d:b1:2b:70 brd ff:ff:ff:ff:ff:ff
inet6 fe80::b4ca:8dff:feb1:2b70/64 scope link
valid_lft forever preferred_lft forever
25: sstp-bridge: <NO-CARRIER,BROADCAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether 6a:57:25:cc:e9:f4 brd ff:ff:ff:ff:ff:ff
26: sstp-br-link@sstp-peer-link: <NO-CARRIER,BROADCAST,UP,M-DOWN> mtu 1500 qdisc noqueue state LOWERLAYERDOWN group default qlen 1000
link/ether fe:48:1d:cd:05:bc brd ff:ff:ff:ff:ff:ff
27: sstp-peer-link@sstp-br-link: <BROADCAST,MULTICAST> mtu 1500 qdisc noop master sstp-bridge state DOWN group default qlen 1000
link/ether 6a:57:25:cc:e9:f4 brd ff:ff:ff:ff:ff:ff
28: dsl_br0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether 9a:e8:b2:b9:33:1f brd ff:ff:ff:ff:ff:ff
29: eth2.1@eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br0 state UP group default
link/ether 50:ff:20:66:e1:c2 brd ff:ff:ff:ff:ff:ff
inet6 fe80::52ff:20ff:fe66:e1c2/64 scope link
valid_lft forever preferred_lft forever
30: eth2.4@eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
link/ether 50:ff:20:66:e2:c3 brd ff:ff:ff:ff:ff:ff
inet 95.29.240.233/19 brd 95.29.255.255 scope global eth2.4
valid_lft forever preferred_lft forever
inet6 fe80::52ff:20ff:fe66:e2c3/64 scope link
valid_lft forever preferred_lft forever
31: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
link/ether 50:ff:20:66:e1:c2 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.1/24 brd 192.168.1.255 scope global br0
valid_lft forever preferred_lft forever
inet6 fe80::52ff:20ff:fe66:e1c2/64 scope link
valid_lft forever preferred_lft forever
32: ovpn_br0: <BROADCAST,POINTOPOINT,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
link/ether 52:e3:1f:a3:0c:ae peer ff:ff:ff:ff:ff:ff
inet 192.168.121.97/21 scope global ovpn_br0
valid_lft forever preferred_lft forever
inet6 fe80::50e3:1fff:fea3:cae/64 scope link
valid_lft forever preferred_lft forever
33: ra4.1@ra4: <NO-CARRIER,BROADCAST,MULTICAST,UP,M-DOWN> mtu 1500 qdisc noqueue master br0 state LOWERLAYERDOWN group default qlen 1000
link/ether 52:ff:20:46:e1:c2 brd ff:ff:ff:ff:ff:ff
34: rai4.1@rai4: <NO-CARRIER,BROADCAST,MULTICAST,UP,M-DOWN> mtu 1500 qdisc noqueue master br0 state LOWERLAYERDOWN group default qlen 1000
link/ether 52:ff:20:63:a1:c6 brd ff:ff:ff:ff:ff:ff
35: ztw4lcvp4z: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 2800 qdisc fq_codel state UNKNOWN group default qlen 1000
link/ether 5a:5e:74:f3:9b:88 brd ff:ff:ff:ff:ff:ff
inet 192.168.196.1/24 brd 192.168.196.255 scope global ztw4lcvp4z
valid_lft forever preferred_lft forever
inet6 fe80::585e:74ff:fef3:9b88/64 scope link
valid_lft forever preferred_lft forever
39: tun0: <POINTOPOINT,UP,LOWER_UP> mtu 1500 qdisc fq_codel master ovpn_br0 state UNKNOWN group default qlen 150
link/none
inet6 fe80::f403:6c07:3463:6cc3/64 scope link flags 800
valid_lft forever preferred_lft forever
Какой указывать?
Можете показать как это сделать? нужно ли покупать какой то VPN-сервер?