It looks like I need to add the dhcp option to eth1 in my Bering rc4?  I was
running the dhcpd package on my pppoe adsl connection.  DHCP
ACKs from the server to internal clients were being dropped--yet the DHCP
clients were able to release and renew addresses just fine.  It's just that
these messages were showing up in the log.

Nov 1 21:38:40 firewall kernel: Shorewall:all2all:REJECT:IN= OUT=eth1
SRC=192.168.35.254 DST=192.168.35.1 LEN=328 TOS=0x00 PREC=0x00 TTL=64
ID=42049 DF PROTO=UDP SPT=67 DPT=68 LEN=308  
Nov 1 21:38:45 firewall kernel: Shorewall:all2all:REJECT:IN= OUT=eth1
SRC=192.168.35.254 DST=192.168.35.1 LEN=328 TOS=0x00 PREC=0x00 TTL=64
ID=54735 DF PROTO=UDP SPT=67 DPT=68 LEN=308  

[Yes, I'm the guy who likes to change his default IP address.  Doesn't
anybody else have VPN routing issues to other networks that use the same
default addressing?  It seems that everyone and their mother has a
broadband modem that defaults to 192.168.1.0/24.]

According to http://www.shorewall.net/dhcp.htm, the dhcp option should
be used on any interface that is receiving a DHCP address or serving a
subnet of DHCP clients.  Since I'm running dhcpd on eth1, that would
qualify.  PPPoE handles eth0 without DHCP.

This is not mentioned anywhere in Jacques' user guide under PPPoE
Shorewall setup.  I am wondering why no one has run across this before.
Did I miss something?

http://leaf.sourceforge.net/devel/jnilo/bupppoe.html#AEN374

Here's my revised shorewall/interfaces file:

#ZONE    INTERFACE      BROADCAST       OPTIONS
net     ppp0            -               routefilter,norfc1918
loc     eth1            detect          routestopped,dhcp

Adding that dhcp option to my loc zone seems to have fixed this problem.
I'm just surprised no one has mentioned it before.  I've searched the list
archives, FAQs, and user/install guides.

George


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