[Openswan Users] Tunnels come up, but not all traffic goesthrough

Matt Harrell matt at mattharrell.net
Wed Jun 9 22:53:01 CEST 2004


Indeed.  I discovered this with some research into handling the new 
IPsec in iptables.  I now have everything working beautifully!

Thanks.

Herbert Xu wrote:

>Michael Richardson <mcr at sandelman.ottawa.on.ca> wrote:
>  
>
>>>>>>>"Matt" == Matt Harrell <matt at mattharrell.net> writes:
>>>>>>>              
>>>>>>>
>>   Matt> I should have mentioned that.  I did change all references to
>>   Matt> ipsec0 to eth1 (external NIC) in my iptables rules.  Is that
>>   Matt> all there is to it?
>>
>> No. You have likely caused yourself a security hole.
>>
>> You can not firewall IPsec things with 2.6 kernels, without patches.
>>    
>>
>
>This is bullshit.  You *can* firewall IPsec traffic just fine with
>2.6.  It is also unlikely to have caused security holes as the
>kernel policy engine ensures that all traffic matching the selector
>of the SAs must be protected by the specified SAs.
>
>What you can't do easily is NATing or and other similar operations
>on IPsec.
>  
>

-- 
Matt Harrell
matt at mattharrell.net
http://www.mattharrell.net



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