[Bridge] Help

Wayback MachineAbout this captureCOLLECTED BY Organization: Alexa Crawls Starting in 1996, Alexa Internet has been donating their crawl data to the Internet Archive. Flowing in every day, these data are added to the Wayback Machine after an embargo period. Collection: Alexa Crawls DD Crawl data donated by Alexa Internet. This data is currently not publicly accessible TIMESTAMPSloadingAos,Mikemichael_aos@agilent.com
Tue, 11 Apr 2000 17:12:25 -0600I currently have a bunch of DHCP-assigned (although they have changed in 2years, so I consider them “static”) IP’s from USWest.net that I access viaDSL.All the machines, and my Cisco 675 DSL router are all plugged into a hub.Life is good.What I would _LIKE_ to do, is put a “firewall” between the Cisco and mycurrent machines (Linux, Windows 2000, etc). I’ve been through the ipchainsHOWTO’s and the FIREWALL-HOWTO, as well as everything else I can get myhands on. Nothing seems to work. I am able to forward packets between themultiple interfaces on my “firewall / packet filter / router / whatever”.For lack of a better description, I’ve been calling what I want an”intelligent hub”. Something that appears as a piece of wire for outgoing,but lets me restrict what kind of packets come into my little network.So, I found some stuff on “bridging”, and it looks like EXACTLY what I’mafter. I compiled a new 2.2.14 kernel w/bridging enabled, and installed thebridge-utils-0.9.0-1 RPM package. I tried the `brctl addbr br0` but I getthe error message “br_add_bridge: bad address”.As an example, I have my main Linux box (and Apple iMac running LinuxPPC) at207.109.175.78. My DSL modem is at 207.109.174.254.So, I’m hoping for something that looks like this:207.109.175.78 –> 207.109.175.238 || 207.109.174.150 <--207.109.174.254Where 207.109.175.238 and 207.109.174.150 are interfaces on my "packetfilter" machine.I've tried simply turning on IP_FORWARD, and I can see packets from207.109.175.78 being forwarded to 207.109.174.150, but they just "disappear"there. I'm thinking maybe if I bridge 207.109.175.0 <> 207.109.174.0, maybelife will be good again…?Thanks,Mike

[Bridge] bridging and dhcp problems

Wayback MachineAbout this captureCOLLECTED BY Organization: Alexa Crawls Starting in 1996, Alexa Internet has been donating their crawl data to the Internet Archive. Flowing in every day, these data are added to the Wayback Machine after an embargo period. Collection: Alexa Crawls DE Crawl data donated by Alexa Internet. This data is currently not publicly accessible TIMESTAMPSloadingSparhawksparhawk@sparhawk.bc.ca
Mon, 03 Apr 2000 17:44:15 -0700I am having a problem getting dhcp to work through the bridge I set upwithI have 3 3c509 cards, set up in the following wayeth0 192.168.1.1 providing masqing for my internal networketh1 is hooked to my cablemodemeth2 is connected to my FreeBSD server (The one I want to set up behindthe bridge)I have set up the bridge with/usr/local/bin/brctl addbr br0/usr/local/bin/brctl addif br0 eth1/usr/local/bin/brctl addif br0 eth2I then use “dhcpcd -R br0” to get an IP for the bridgeOn my Freebsd box I cant get it to get a dhcp lease through the bridge,the error I am getting is:”Can’t bind to dhcp address: Address already in use”Any ideas on what might be causing this, or what I need to do to getdhcp working?