On Friday 29 November 2002 06:32 pm, Tim Rodriguez wrote: > Hey ppl, > > I have had my ADSL connection set up with the ADSL modem setup to bridg= e to > a Cisco 806 router that actually does all the pppoe configuration. It i= s > pretty sweet, but, the Cisco router is not functioning. The Ethernet po= rt > on the LAN side have defuncted, broken, not working. I have called Cisc= o > and they have confirmed that indeed the ethernet ports and not function= al > and they are shipping me out a new one. > > I used to have the Cisco router connect to one of three NICs on the > firewall in order for me to filter traffic, now that the router is not > functional I have to do a direct connection to my main pc in order to h= ave > access to the internet. > > I have three NICs on the firewall box, one for the internet (then route= r) > one for the internal LAN and one for the DMZ where I house my web, mail= and > DNS server. I know that there is a way to configure the DSL modem to > connect directly to an interface on the firewall box and do Natting the= re > in order for the DMZ and Internal networks to have access to the intern= et. > Could someone point me to documentation that I can use to accomplish th= is?=20 > Your help, as always will be gratefully appreciated. http://www.roaringpenguin.com/pppoe This is the PPPoE client that is included with many distributions now, bu= t it=20 would probably be best to download & install the latest release. It is v= ery=20 easy to configure, you just set up the NIC that the ADSL modem is connect= ed=20 to so that it is NOT activated at startup, and run the PPPoE client=20 configuration, which can be set up to connect at startup, giving you a PP= P0=20 device (by default). Your IPTables rules will need to be modified to=20 accomodate this change, but likely no real configuration differences will= be=20 required apart from the -i ppp0 or -o ppp0 instead of references to the=20 external NIC directly. There is documentation and some tutorials available at the RoaringPenguin= =20 site, and elsewhere, but it really is simple to set up. Oh, and if the s= etup=20 wants to set up firewall/masquerade, DON'T, as you will want to handle th= is=20 directly with iptables yourself. If your LAN and DMZ are both connected to the firewall box, isn't it alre= ady=20 performing NAT functions? If not, then you will need to set up SNAT/MASQ= and=20 DNAT rules to move everything around properly. I've been using the rp-pppoe client with ADSL for some time now with no=20 problems. If you run into any setting it up, you are welcome to email me= =20 privately and I will try to assist. Any problems setting up NAT rules is= of=20 course topical to the list here, but if you piggyback any questions about= =20 that along with rp-pppoe questions privately I won't mind. j
