Tom Eastep wrote: > Tom Eastep wrote: >> Steven Jan Springl wrote: >>> Tom >>> >>> Masq entry: >>> >>> eth0 eth0 >>> >>> and proxyarp entry: >>> >>> 192.168.10.3 eth0 eth0 No No >>> >>> when compiled with shorewall-shell generates: >>> >>> -A eth0_masq -s 192.168.10.3 -m policy --dir out --pol none -j MASQUERADE >>> -A eth0_masq -s 192.168.0.0/255.255.255.0 -m policy --dir out --pol none -j >>> MASQUERADE >>> >>> but when compiled with shorewall-perl generates: >>> >>> -A eth0_masq -s 192.168.0.0/255.255.255.0 -j MASQUERADE >>> >> This is a consequence of the difference in the order of operations in >> the two compilers. Shorewall-shell processes the proxyarp file before >> the masq file while shorewall-perl does the opposite. Since it is a >> configuration error to masquerade proxy-arped hosts at all, I don't >> believe this difference is a problem. > > Note that in the real-world case where the ADDRESS column of the > proxyarp entry is an external IP: > > /etc/shorewall/proxyarp > > 206.124.146.177 eth1 eth0 No No > > /etc/shorewall/masq: > > eth0 eth1 > > Shorewall shell generates an unwanted MASQUERADE rule: > > A eth0_masq -s 206.124.146.177/255.255.255.0 -m policy --dir out --pol > none -j MASQUERADE > > This problem is avoided by changing the processing order as I did in > Shorewall-perl.
Hmmmm -- just looked at this again and the order in the two compilers is the same. I'll take a closer look. Please stand by..... -Tom -- Tom Eastep \ Nothing is foolproof to a sufficiently talented fool Shoreline, \ http://shorewall.net Washington USA \ [EMAIL PROTECTED] PGP Public Key \ https://lists.shorewall.net/teastep.pgp.key
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