Вырубил SELinux.Запустил пинг на сервере:
[root@130 ~]# ping 10.8.100.2 -I tun0
PING 10.8.100.2 (10.8.100.2) from 10.8.100.1 tun0: 56(84) bytes of data.
На клиенте:
STSZ001# tcpdump -vvv -i tun0
...
10.8.100.1 > 10.8.100.2: ICMP echo request, id 51974, seq 120, length 64
16:13:34.010839 IP (tos 0x0, ttl 64, id 36453, offset 0, flags [DF], proto ICMP (1), length 84)
10.8.100.2 > 10.8.100.1: ICMP echo reply, id 51974, seq 120, length 64
^C
198 packets captured
200 packets received by filter
0 packets dropped by kernel
На сервере:
[root@130 ~]# tcpdump -vvv -i tun0
tcpdump: listening on tun0, link-type RAW (Raw IP), capture size 65535 bytes
18:14:54.961912 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84)
10.8.100.1 > 10.8.100.2: ICMP echo request, id 51974, seq 203, length 64
18:14:54.987474 IP (tos 0x0, ttl 64, id 36626, offset 0, flags [DF], proto ICMP (1), length 84)
10.8.100.2 > 10.8.100.1: ICMP echo reply, id 51974, seq 203, length 64
18:14:55.961900 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84)
10.8.100.1 > 10.8.100.2: ICMP echo request, id 51974, seq 204, length 64
18:14:55.987140 IP (tos 0x0, ttl 64, id 36628, offset 0, flags [DF], proto ICMP (1), length 84)
10.8.100.2 > 10.8.100.1: ICMP echo reply, id 51974, seq 204, length 64