On 05/24/2012 04:31 AM, Jan van der Vyver wrote:> Hi
>
> I have a server with 2 routers(192.168.254.1 and 192.168.254.3)
> connected on the same interface on the server(192.168.254.2). Both route
> to a 10.0.0.0/8 network.
>
> I have the following custom rules which sorts out the routing for me and
> below each have written the shorewall equivalent and marked some stuff
> with ????
>
> Please check what I have and help me on the ????
>
> ip rule add fwmark 0x1 table r1
>
> ip rule add fwmark 0x2 table r2
>
>>>>>/etc/shorewall/providers
>
>>>>>#NAME NUMBER MARK DUPLICATE INTERFACE GATEWAY
OPTIONS COPY
>
>>>>>r1 1 1 - eth0
192.168.254.1 track ??
>
>>>>>r1 2 2 - eth0
192.168.254.2 track ??
You need the ''shared'' option as well as
''track''. If you specify
USE_DEFAULT_RT=Yes (which I recommend), then you need nothing in the
COPY column.
There are a couple of errors in the second line above; the provider name
should be r2 and the gateway address should be 192.168.254.3.
>
> ip route add 10.0.0.0/8 via 192.168.254.1 table r1
>
> ip route add 10.0.0.0/8 via 192.168.254.3 table r2
>
> >>>>/etc/shorewall/routes
#PROVIDER DEST GATEWAY DEVICE
r1 10.0.0.0/8 192.168.254.1 eth0
r2 10.0.0.0/8 192.168.254.3 eth0
Those are superfluous, however, since the default routes for r1 and r2
go to the same gateways.
>
> -A PREROUTING -p tcp -m tcp --dport 22120 -j MARK --set-mark 0x01
>
> -A PREROUTING -p tcp -m tcp --dport 22122 -j MARK --set-mark 0x02
>
> >>>>|/etc/shorewall/tcrules|
>
>>>>>#ACTION SOURCE DEST PROTO
PORT(S) SOURCE USER TEST LENGTH TOS CONNBYTES HELPER
>
>>>>>#
PORT(S)
>
>>>>>1:T 0.0.0.0/0 0.0.0.0/0 TCP 22120
- - - - - -
>
>>>>>2:T 0.0.0.0/0 0.0.0.0/0 TCP 22122
#ACTION SOURCE DEST PROTO PORT(S)
1:P eth3 - tcp 22120
2:P eth3 - tcp 22122
There, I''m assuming that eth3 is the ''net'' interface.
>-A PREROUTING -p tcp -m tcp --dport 22120 -j DNAT --to-destination
10.0.2.62:6001
>-A PREROUTING -p tcp -m tcp --dport 22122 -j DNAT --to-destination
10.0.0.5:6001
>>>>>#ACTION SOURCE DEST PROTO
DEST SOURCE ORIGINAL
>
>>>>>#
PORT PORT(S) DEST
>
>>>>>DNAT net apn:10.0.2.61:6001 tcp
22120 - 196.44.33.33
>
>>>>>DNAT net apn:10.0.0.5:6001 tcp
22122 - 196.44.33.33
Those look correct, assuming that the server''s net IP address is
196.44.33.33.
> -A POSTROUTING -d 10.0.0.0/8 -j SNAT --to-source 192.168.254.2
>
> >>>>|/etc/shorewall/masq|
>
> |>>>>|#INTERFACE SOURCE ADDRESS
PROTO PORT(S)
>
>>>>>eth0 ?? 192.168.254.2
#INTERFACE SOURCE ADDRESS
eth0:10.0.0.0/8 - 192.168.254.2
-Tom
--
Tom Eastep \ When I die, I want to go like my Grandfather who
Shoreline, \ died peacefully in his sleep. Not screaming like
Washington, USA \ all of the passengers in his car
http://shorewall.net \________________________________________________
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