On 07/04/2017 02:03 AM, Vieri Di Paola via Shorewall-users wrote:
> ________________________________
> From: Tom Eastep <[email protected]>
>>
>>> Checking /etc/shorewall/providers... ERROR: Providers interfaces may
>>> not specify 'routefilter' when USE_DEFAULT_RT=Yes
>>
>> That error is expected as 'routefilter' causes Martians when
> 
>> USE_DEFAULT_RT=Yes. Use 'rpfilter' instead.
> 
> 
> OK, so I guess "shorewall start" should also throw that error and abort. If 
> not, continue, but warn about it.
> 
> In "interfaces" I'm now using options such as:
> 
> net4    enp7s0f0        
> optional,tcpflags,nosmurfs,logmartians,proxyarp=0,arp_ignore=1,sourceroute=0,rpfilter
> 
> However, if I restart shorewall and dump afterwards I get this result:
> 
> # grep /rp_filter swdump
> /proc/sys/net/ipv4/conf/all/rp_filter = 0
> /proc/sys/net/ipv4/conf/default/rp_filter = 0
> /proc/sys/net/ipv4/conf/enp10s0/rp_filter = 0
> /proc/sys/net/ipv4/conf/enp5s0/rp_filter = 0
> /proc/sys/net/ipv4/conf/enp6s0/rp_filter = 0
> /proc/sys/net/ipv4/conf/enp7s0f0/rp_filter = 0
> /proc/sys/net/ipv4/conf/enp7s0f1/rp_filter = 0
> /proc/sys/net/ipv4/conf/enp7s0f2/rp_filter = 0
> /proc/sys/net/ipv4/conf/enp7s0f3/rp_filter = 0
> /proc/sys/net/ipv4/conf/enp8s5/rp_filter = 0
> /proc/sys/net/ipv4/conf/lo/rp_filter = 0
> 
> # shorewall show capabilities | grep RPFilter
> RPFilter Match (RPFILTER_MATCH): Available
> 
> # shorewall version
> 5.1.4.4
> 
> Why isn't /proc/sys/net/ipv4/conf/enp7s0f0/rp_filter = 1?
> 
> Am I required to set this with sysctl?
> 
> Also, I'm currently checking and enabling /proc/sys/net/ipv4/ip_forward via 
> sysctl. Is there a reason why shorewall doesn't enable it directly when 
> required?
> If shorewall can't do that directly then maybe "shorewall check" could check 
> the value of ip_forward, and warn the user to enable it if required.
> 
root@debianvm:/etc/shorewall# shorewall status
Shorewall-5.1.5 Status at debianvm - Tue Jul  4 08:56:52 PDT 2017

Shorewall is stopped
State:Stopped Tue Jul  4 08:56:48 PDT 2017 (/var/lib/shorewall/firewall
compiled Tue Jul 4 08:36:58 PDT 2017 by Shorewall version 5.1.5)

root@debianvm:/etc/shorewall# shorewall start
Compiling using Shorewall 5.1.5...
Processing /etc/shorewall/params ...
Processing /etc/shorewall/shorewall.conf...
Loading Modules...
Compiling /etc/shorewall/zones...
Compiling /etc/shorewall/interfaces...
Compiling /etc/shorewall/hosts...
Determining Hosts in Zones...
Locating Action Files...
Compiling /etc/shorewall/policy...
Adding Anti-smurf Rules
Adding rules for DHCP
Compiling TCP Flags filtering...
Compiling Kernel Route Filtering...
Compiling Martian Logging...
Compiling Accept Source Routing...
Compiling /etc/shorewall/providers...
   ERROR: Providers interfaces may not specify 'routefilter' when
USE_DEFAULT_RT=Yes /etc/shorewall/providers (line 10)
root@debianvm:/etc/shorewall#

-Tom
-- 
Tom Eastep        \   Q: What do you get when you cross a mobster with
Shoreline,         \     an international standard?
Washington, USA     \ A: Someone who makes you an offer you can't
http://shorewall.org \   understand
                      \_______________________________________________

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