[CentOS] vpn - xl2tpd and routing to a net?
lejeczek
peljasz at yahoo.co.uk
Tue Jan 26 16:46:38 UTC 2016
On 26/01/16 16:26, John R Pierce wrote:
> On 1/26/2016 5:37 AM, lejeczek wrote:
>>
>> I'm having a, I'd like to think a "regular" VPN with
>> IPsec/xl2tpd and it all works OK, except..
>> One thing that I never needed but now I do and I
>> wonder.... is it my iptables, or/and routing or maybe VPN
>> server config..?
>>
>> vpn clients with established tunnels can get to VPN
>> server's NICs/IPs but cannot get through to the net
>> behind the server.
>> Well... they can, but only if on a host (eg.
>> 192.168.2.33) on VPN server's net I do:
>>
>> route add -host 192.168.2.10 gw 192.168.2.100 #
>> 192.168.2.10 is VPN client
>>
>> I thought this I'd not need since that local net (eg.
>> 192.168.2.33) use VPN server's 192.168.2.100 as the
>> default gw.
>>
>> is it by design and nature of that VPN solution it works
>> this way or I actually have missed/messed up something?
>> I hope the latter and adding routing on per "to host"
>> basis is redundant.
>
>
> your VPN client shouldn't be on the same subnet as your
> LAN. your LAN hosts expect 192.168.2.10 to be a local
> address and not to have to use the gateway. you
> probably could make this work with some sort of proxy arp
> but ugh, bridged VPNs are problematic.
>
>
>
after I mailed my message I did play around with it this
exact way, it works and is the simplest way, most likely the
proper way.
thanks
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