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Date: Wed, 13 Jun 2007 03:42:49 +0800
From: Pang <freebsd@laws.ms>
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Subject: Weird freebsd gateway question
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Hello,
  I have followed the document below to set up a gateway for 2 vlans:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/network-routing.html
  All servers behind the switch can connect to the Internet without any 
problems. However, I cannot ping the switch IP from the outside nor 
inside of the network. I have tried to change the IP of the switch, but 
still the switch cannot be visible in the network (all servers behind 
works without any glitch.) Could anyone point me out the error?

  Below is the network diagram:
                  Internet ----- FreeBSD gateway ---- Switch ---- Few 
servers

 For FreeBSD gateway, I have that few lines in /etc/rc.d:
defaultrouter="10.0.0.1"
gateway_enable="YES"
ifconfig_em0="inet 10.0.0.2  netmask 255.255.255.252"
ifconfig_em1="inet 172.16.0.1  netmask 255.255.255.224"
static_routes="lan"
route_lan="-net 172.16.0.1/24 172.16.0.2"

*The IP of the switch is 172.16.0.2
**All actual IPs are changed to dummy IPs.

Thanks
Pang