> Hello!
> I have installed FreeBSD 4.7 recently, and it seems it does 
> not want to 
> work as a gateway. I have two network cards in my FreeBSD 
> computer, fxp0 
> for LAN and sis0 for the cable modem. I am new to FreeBSD, so I am 
> confused what the difference between gateways and routers is (I was 
> thinking they link to the same thing). I can ping my FreeBSD box from 
> winxp, I can ping internet from remote session to FreeBSD, 
> but I cannot 
> ping internet from my winxp.
> My winxp has ip 192.168.0.1, netmask 255.255.255.0, and gateway 
> 192.168.0.18 settings. Now FreeBSD /etc/rc.conf follows:
> 
> gateway_enable="YES"
> kern_securelevel_enable="NO"
> nfs_reserved_port_only="YES"
> ifconfig_sis0="DHCP"
> ifconfig_fxp0="inet 192.168.0.18  netmask 255.255.255.0" 
> #router_enable="YES" # from handbook gateway_enable="YES" 
> firewall_enable="YES" firewall_type="OPEN" natd_enable="YES" 
> natd_interface="sis0" natd_flags="" #/ handbook

Are your ip's reversed?  I think the gateway should have the .1 address
and the xp box should use the .18

Are you using the default kernel?  If so, you will need to add a couple
lines are recompile.

options         IPFIREWALL              #firewall
options         IPDIVERT                #divert sockets

as for the difference between a router and a gateway, a gateway is a
machine to deal with going from one network (lan) to another network
(wan), I think.
> 
> The last two lines from dmesg:
> IP packet filtering initialized, divert disabled, rule-based 
> forwarding 
> enabled, default to deny, logging disabled
> ip_fw_ctl: invalid command
> 
> %netstat -rn
> Routing tables
> 
> Internet:
> Destination        Gateway            Flags    Refs      Use  
> Netif Expire
> default            68.105.xxx.x       UGSc        2        0   sis0
> 68.105.xxx/24      link#1             UC          1        0   sis0
> 68.105.xxx.x       00:03:xx:xx:xx:xx  UHLW        3        0  
>  sis0   1197
> 68.105.xxx.xxx     127.0.0.1          UGHS        0        0    lo0
> 127.0.0.1          127.0.0.1          UH          1        0    lo0
> 192.168.0          link#2             UC          1        0   fxp0
> 192.168.0.1        00:04:xx:xx:xx:xx  UHLW        3    28742  
>  fxp0   1005
> 
> Thank you!
> 
> --
> Constantine
> 
> 
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