________________________________
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.

Vieri

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