VPN with IPSec question
I really stuck here (help me please :():
I'm trying to set a IPSec based VPN tunnel up.
Everything works till the point where data should be transmitted, so I get "IPsec SA established" on both linux boxes.
If I try to ping the destination host (any of them) I get 100% packet lost.
The ifconfig -i ipsec0 output looks like:
ipsec0 Link encap:IPIP Tunnel HWaddr
inet addr:220.127.116.11 Mask:255.255.255.192
UP RUNNING NOARP MTU:16260 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:4 overruns:0 carrier:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
The tcpdump on ipsec0 says:
16:56:43.686674 unknown ip 0
16:56:44.700074 unknown ip 0
16:56:45.700077 unknown ip 0
16:56:46.700063 unknown ip 0
16:56:47.710419 unknown ip 0
So all the packets get dropped by the ipsec interface. Any ideas?
Thanx in advance,
local boxes or over the internet?
over the internet RFC 1918 drops the private addresses
on a LAN
you have something else wrong
Well the external interfaces of the boxes use real IP-Addresses.
They are actually even in the same subnet just couple of meters away...
But I actually thought VPN can be used to connect two private networks, why is it dropping the packets than?
Thnx anyway :-)
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