os2-wireless_users@2rosenthals.com ?????????????? ????? #5495

???:	"Will Honea" <os2-wireless_users@2rosenthals.com>	?? ???? ?????????
???:	"OS/2 Wireless Users Mailing List" <os2-wireless_users@2rosenthals.com>
??:	Re: [OS2Wireless] OT: Switch problem
??:	Wed, 5 Dec 2007 00:12:35 -0700
??:	"OS/2 Wireless Users Mailing List" <os2-wireless_users@2rosenthals.com>

** Reply to message from "Jeffrey Race" <os2-wireless_users@2rosenthals.com> on Wed, 05 Dec 2007 12:22:29 +0700 > Due to excess of accessories over number of ports on my dsl modem/router > (Speedstream 5681) I have interposed a GigaFast EZ500-S 10/100 Mbps > NWay Switch to serve a printer and computers. These work fine, but my two > VoIP adapters cannot complete the login process so the VoIP numbers do > not function when their adapters' lan cables pass through the switch instead > of to the router directly. The diagnostic message on the Linksys IP phone > display suggests it is stalling at a DNS lookup. > > I'd appreciate if someone could either tell me what I am doing wrong, what > is the simple fix, or what more I need to read or do to educate myself to > diagnose and solve this kind of problem on my own. I had a similar problem using some donated parts to get my daughter set up uising a Speedstream modem and a Netgear router/wireless AP piece. Speedstream DSL modem that had two modes: PPOA and PPOE. In the one mode, it got the IP from the provider and then provided DHCP service to the computer. No NAT, but it did simple routing. In the other mode, it just acquire the DSL connection but did not perform the login, etc. Just a dumb bridge. In that second mode (sorry, can't get the details straight, but there were only two), the device on the other side of the modem was responsible for handling all the login and IP handling stuff. In the first mode, it worked fine for a single machine (it only had one input port, so it was restricted to a single computer) but it wouldn't handle multiple requests from multiple sources thru a hub. The Netgear also had PPOE/PPOA modes and after some fiddling I figured out that the Netgear could be made to work with either modem configuration but that it worked best when I configured the modem as a simple bridge - completely oblivious to any IP info - and let the Netgear handle the DHCP request/login to the ISP then ran it's own internal DHCP server to serve out the internal addresses to the local computers and the wireless AP on it. Two gotchas with the setup. First, both the Netgear and the Speedstar wanted to use the same 192.168.0.xxx address for setup. That complicated life no end until I figured it out. Then, in the final I used the Netgear wanted to pass its own address as the DNS so that it became a DNS proxy for the local network. In that mode, I couldn't address the DSL modem setup because the router portion wouldn't pass the 192.168.0.xxx address on to the modem so I couldn't access the setup interface without unplugging things and switching cables. It it also cached DNS requests which made it a bear to clear if you got things messed up. Anyway, after a couple of hours of experimenting I finally got it all set up for her. This could easily be the battle you are fighting. The problem with the setup is getting past having two levels of DHCP in the loop - that will cause all sorts of grief. The best results I get is with the Speedstar in the bridge mode feeding a router/switch feeding the local network. You might also want to look and make sure that the DNS server is in fact the one provided by the ISP - or any usable DNS service on the internet - and that the DHCP server is passing a non local address as the DNS rather than serving as a proxy DNS for you. -- Will Honea <whonea@whonea.net> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= This message is sent to you because you are subscribed to the mailing list <os2-wireless_users@2rosenthals.com>. To unsubscribe, E-mail to: <os2-wireless_users-off@2rosenthals.com> To switch to the DIGEST mode, E-mail to <os2-wireless_users-digest@2rosenthals.com> To switch to the INDEX mode, E-mail to <os2-wireless_users-index@2rosenthals.com> Send administrative queries to <os2-wireless_users-request@2rosenthals.com> To subscribe (new addresses), E-mail to: <os2-wireless_users-on@2rosenthals.com> and reply to the confirmation email. Web archives are publicly available at: http://lists.2rosenthals.com This list is hosted by Rosenthal & Rosenthal, LLC P.O. Box 281, Deer Park, NY 11729-0281. Non- electronic communications related to content contained in these messages should be directed to the above address. (CAN-SPAM Act of 2003) =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

???????: ????, ??????, ??????.
?????????
??? ????????