ipsec + bridge

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Hello,

Got an issue that seems to be related to few technologies at same time.
My setup:
one eth0 iface, connected to bridge br0. server runs strongswan, nat rules to nat user connections.
Problem:
Clients connects via ipsec and can't ping anything on internet, but can ping gateway.
If i set promisc mode on br0 - traffic goes fine.

Test1:
Disable bridge, use eth0 as main iface - everything works fine, eth0 not in promisc mode.
Test2:
Bridged setup, using tcpdump (-p for non-promisc mode), checking 2 ifaces - eth0 and br0, two modes - promisc/non-promisc.
in all cases ips and macs in packets are all same, flags too. Only difference is:
In br0 non promisc mode I can see responce (responce to ping) on eth0 arrived, but I can't see it on br0
in promisc mode I see this responce on br0.

Any ideas where to digg ?
Thanks in advance.

--
Denis




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