Group : Does anyone of us has this book in their library who wants to sell . Am willing to pay but less than available at www.half.com . Please check and let me know !
Internetworking with TCP/IP Vol.1: Principles, Protocols, and Architecture by Douglas Comer Rdgs Yady Kalsi -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Saturday, September 28, 2002 12:00 PM To: [EMAIL PROTECTED] Subject: wireless digest, Vol 1 #1014 - 8 msgs Send wireless mailing list submissions to [EMAIL PROTECTED] To subscribe or unsubscribe via the World Wide Web, visit http://lists.bawug.org/mailman/listinfo/wireless or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reach the person managing the list at [EMAIL PROTECTED] When replying, please edit your Subject line so it is more specific than "Re: Contents of wireless digest..." Today's Topics: 1. WAP11 DSL <-->AP<--> AP <--> Client (Stefano Y) 2. Re: [Airo-linux-gen80211] AP350 Problem (Dan Lanciani) 3. VB: DWL-900AP+ as wireless client connected to other brand AP? (Hannes Westman) 4. Re: Re: [Airo-linux-gen80211] AP350 Problem (Ulisses) 5. help needed for building a CWN near HU/germany (Marcus Wagner) 6. [NoCat] help needed for building a CWN near HU/germany (Marcus Wagner) 7. RE: WAP11 DSL <-->AP<--> AP <--> Client (Enrique LaRoche) 8. Re: WAPs with built in router-firewall (Julian Bond) --__--__-- Message: 1 Date: Fri, 27 Sep 2002 12:24:38 -0700 (PDT) From: Stefano Y <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: [BAWUG] WAP11 DSL <-->AP<--> AP <--> Client Hello all, I already have an AP with Agere or Intersil Chipset that connected DSL and it's working fine. However, I like to extend the range can I just buy 1 of Linksys WAP11? What I like to do is: DSL/router <----> AP <--100'--> AP <--60'--> Client | | Client Thanks. Stefano __________________________________________________ Do you Yahoo!? New DSL Internet Access from SBC & Yahoo! http://sbc.yahoo.com --__--__-- Message: 2 Date: Fri, 27 Sep 2002 15:57:57 -0400 (EDT) From: Dan Lanciani <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: [BAWUG] Re: [Airo-linux-gen80211] AP350 Problem |I have a AP350 (that with external antennas) and i'm having some |dificulties with it. | |It is with FirmWare 11.23T. It is the only unit acting as AP in my net. It |is with ALL the default factory config, except SSID, and IP. | |I CAN associate and use it with any PCCARD and PCI (i've tested PCMCIA |Cisco 340, PCMCIA Cisco 350, PCI350, Linksys PCI, D-Link PCI, etc). | |But when i try to use a cheap AP (i've tried D-Link DWL-900AP+ and LinkSYS |WAP11) in "AP Client" mode, i get some strange results. | |The "AP Client" associate with AP350, and from AP350 (and any client |conected to AP350) i can ping the "AP Client". | |BUT when i try to ping AP350 (or any client connected to AP350) from a PC |conected to the ethernet port of the "AP Client", it doesn't work. | |And i got a lot of "Disassociating 'AP Client', reason Not Associated" in |the AP350 console. This has been discussed extensively and I think I've done some fairly useful tests that you might want to review in the archives. I don't think you will be pleased with the net result which is that it really isn't going to work as you hope. Although everybody seems to use the same (obvious) 4-address (i.e., DS-DS) format for handling third-party traffic through an AP, different vendors use different proprietary extensions to add the necessary glue. Moreover, some vendors (like Cisco/Aironet) make a specific marketing distinction between bridges and access points with the latter disallowing the kind of third-party traffic from typical AP clients (but allowing Aironet-style multi-client registrations). The older AP4800 platform will allow AP client registrations but will not forward packets for MACs that are clients of the AP client back to the AP client. The very same hardware running the same firmware but thinking it is a BR500/BR340 will forward such packets for addresses it has learned from the AP client back to the AP client. But beware that even though this seems to work it is really just luck and it will not work in the general case. Once the MAC address times out in the BRxxx's table it will stop forwarding and, since the AP client doesn't know how to ask for "all packets with unknown destination" the way a compatible Aironet bridge would, a silent client of the AP client will stop seeing its traffic. This can lead to very confusing situations where things seem to work at first but fail after everybody's ARP cache is loaded and after there are no transmissions from the AP client's client for a while. >From what I've read, the newer AP350 platform is more hostile (or perhaps just less stable) in the face of "cheap" AP clients and will disassociate from them or perhaps even crash when seeing multiple MAC addresses. As usual, the answer to all this is eBay. I've picked up a few Aironet multi- and universal- clients for ~$160 each in the past week or so. That isn't a lot more than "cheap" AP clients and you get to manage them with telnet. You may have to live with the MAC address limitations, but if it is enough for your application you will have a nice stable platform. Dan Lanciani [EMAIL PROTECTED] --__--__-- Message: 3 Date: Fri, 27 Sep 2002 22:27:49 -0700 From: "Hannes Westman" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Subject: [BAWUG] VB: DWL-900AP+ as wireless client connected to other brand AP? Does this work and how is it supposed to be set up? The main AP has ip 192.168.0.1 and has dhcp server enabled. I have set the dlink to client mode, added the mac address and according to the log it connects to the other AP but I can not ping it. HELP!!!! /H --__--__-- Message: 4 Date: Fri, 27 Sep 2002 17:51:23 -0300 To: Dan Lanciani <[EMAIL PROTECTED]>, [EMAIL PROTECTED] From: Ulisses <[EMAIL PROTECTED]> Subject: Re: [BAWUG] Re: [Airo-linux-gen80211] AP350 Problem Cc: [EMAIL PROTECTED] Hi ! At 15:57 27/9/2002 -0400, Dan Lanciani wrote: >|I have a AP350 (that with external antennas) and i'm having some >|dificulties with it. >| >|It is with FirmWare 11.23T. It is the only unit acting as AP in my net. It >|is with ALL the default factory config, except SSID, and IP. >| >|I CAN associate and use it with any PCCARD and PCI (i've tested PCMCIA >|Cisco 340, PCMCIA Cisco 350, PCI350, Linksys PCI, D-Link PCI, etc). >| >|But when i try to use a cheap AP (i've tried D-Link DWL-900AP+ and LinkSYS >|WAP11) in "AP Client" mode, i get some strange results. >| >|The "AP Client" associate with AP350, and from AP350 (and any client >|conected to AP350) i can ping the "AP Client". >| >|BUT when i try to ping AP350 (or any client connected to AP350) from a PC >|conected to the ethernet port of the "AP Client", it doesn't work. >| >|And i got a lot of "Disassociating 'AP Client', reason Not Associated" in >|the AP350 console. > >This has been discussed extensively and I think I've done some fairly useful >tests that you might want to review in the archives. I don't think you will >be pleased with the net result which is that it really isn't going to work as >you hope. Do you remember the "Subjects" of the posts, or the aproximated date ? In what list you post ? airo-linux or bawug ? >Although everybody seems to use the same (obvious) 4-address (i.e., DS-DS) >format for handling third-party traffic through an AP, different vendors >use different proprietary extensions to add the necessary glue. Moreover, >some vendors (like Cisco/Aironet) make a specific marketing distinction >between >bridges and access points with the latter disallowing the kind of third-party >traffic from typical AP clients (but allowing Aironet-style multi-client >registrations). > >The older AP4800 platform will allow AP client registrations but will not >forward packets for MACs that are clients of the AP client back to the AP >client. The very same hardware running the same firmware but thinking it >is a BR500/BR340 will forward such packets for addresses it has learned from >the AP client back to the AP client. But beware that even though this seems >to work it is really just luck and it will not work in the general case. Once >the MAC address times out in the BRxxx's table it will stop forwarding and, >since the AP client doesn't know how to ask for "all packets with unknown >destination" the way a compatible Aironet bridge would, a silent client of >the AP client will stop seeing its traffic. This can lead to very confusing >situations where things seem to work at first but fail after everybody's ARP >cache is loaded and after there are no transmissions from the AP client's >client for a while. > > From what I've read, the newer AP350 platform is more hostile (or perhaps > just >less stable) in the face of "cheap" AP clients and will disassociate from them >or perhaps even crash when seeing multiple MAC addresses. > >As usual, the answer to all this is eBay. I've picked up a few Aironet multi- >and universal- clients for ~$160 each in the past week or so. That isn't a >lot more than "cheap" AP clients and you get to manage them with telnet. You >may have to live with the MAC address limitations, but if it is enough for >your application you will have a nice stable platform. what are these "multi-and universal- clients" you picked on eBay ? Are AP4800 ? Thank You Dan > Dan Lanciani > [EMAIL PROTECTED] >-- >general wireless list, a bawug thing <http://www.bawug.org/> >[un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless --__--__-- Message: 5 From: "Marcus Wagner" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]> Date: Sat, 28 Sep 2002 01:42:43 +0200 Subject: [BAWUG] help needed for building a CWN near HU/germany Hello! My name is Marcus, I'm 20 and live near FFM in Germany. I've spent the last 8 month reading and understanding your great mailing-lists, books and every Webpage I could find on the topic "WLAN & building wireless community networks". I had a lot of trouble and a lot of success with the different flavours of Linux and all that nice, free software out there... ;c) I've "played" with almost everything I could imagine. NOW, some friend and me are so crazy after this, that we want to start a open (but secure!) wireless community in our small town (~17000ppl, even land, some forests around it and diverted by a small hill (~80m)). This should definitively not to be considered as a joke or something like this.... We wanna create something great and useful... Here our goals/requirements: 1. It should be a dynamic MESH NETWORK with efficient routing. The more users the Network has, the more possible/redundant routes to a destination there are and the more overall bandwidth the MAN has --thus the more user it has, the better it is... *g* 2. The Wireless-Linux-Routers should discover new Nodes and build SECURE (vpn?) routes to/among them AUTOMATICALY. If wanted it could even advertise external routes to an other private network or even the Internet. 3. Any user shall be able to reach ANY OTHER POINT IN THE MAN and the Internet (if allowed, to do so) while freely roaming through our city. 4. All traffic must be secure and encrypted. Maybe we can use a VPN-Connection ('cuz WEP is a better joke) between ANY two P2P connections (Node<->Node//node<->server//Client<->Node//Client<->Server//etc.) which sets itself automatically and fully transparent.... but how to do that??? 5. Users MUST authorize themselves to the Authserv to gain access to the Network. Login is based either on l/p AND mac. Would a single central auth-server/user-data-server(mysql,etc.) do the job? So Co-Ops could use something like or NoCat-GW to put up an open Hotspot to the public PPL. 6. Maybe find a way ,to ?aggregate? (add) the bandwidth of all separate DSL-connections to ONE-BIG (virtual?)Pipe, to which then all traffic for the Internet (0.0.0.0/0) is (re?)directed. Any good ideas or experiences with one of the above things? So I'd be glad if you could point me to some specific stuff (for above) on the web or tell me how to start and -what is more important- HOW TO PUT EVERY THING TOGETHER, SO THAT IT FIT'S AND WORKS SMOOTHLY... greetz to all, Marcus Wagner --__--__-- Message: 6 From: "Marcus Wagner" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]> Date: Sat, 28 Sep 2002 01:42:43 +0200 Subject: [BAWUG] [NoCat] help needed for building a CWN near HU/germany Hello! My name is Marcus, I'm 20 and live near FFM in Germany. I've spent the last 8 month reading and understanding your great mailing-lists, books and every Webpage I could find on the topic "WLAN & building wireless community networks". I had a lot of trouble and a lot of success with the different flavours of Linux and all that nice, free software out there... ;c) I've "played" with almost everything I could imagine. NOW, some friend and me are so crazy after this, that we want to start a open (but secure!) wireless community in our small town (~17000ppl, even land, some forests around it and diverted by a small hill (~80m)). This should definitively not to be considered as a joke or something like this.... We wanna create something great and useful... Here our goals/requirements: 1. It should be a dynamic MESH NETWORK with efficient routing. The more users the Network has, the more possible/redundant routes to a destination there are and the more overall bandwidth the MAN has --thus the more user it has, the better it is... *g* 2. The Wireless-Linux-Routers should discover new Nodes and build SECURE (vpn?) routes to/among them AUTOMATICALY. If wanted it could even advertise external routes to an other private network or even the Internet. 3. Any user shall be able to reach ANY OTHER POINT IN THE MAN and the Internet (if allowed, to do so) while freely roaming through our city. 4. All traffic must be secure and encrypted. Maybe we can use a VPN-Connection ('cuz WEP is a better joke) between ANY two P2P connections (Node<->Node//node<->server//Client<->Node//Client<->Server//etc.) which sets itself automatically and fully transparent.... but how to do that??? 5. Users MUST authorize themselves to the Authserv to gain access to the Network. Login is based either on l/p AND mac. Would a single central auth-server/user-data-server(mysql,etc.) do the job? So Co-Ops could use something like or NoCat-GW to put up an open Hotspot to the public PPL. 6. Maybe find a way ,to ?aggregate? (add) the bandwidth of all separate DSL-connections to ONE-BIG (virtual?)Pipe, to which then all traffic for the Internet (0.0.0.0/0) is (re?)directed. Any good ideas or experiences with one of the above things? So I'd be glad if you could point me to some specific stuff (for above) on the web or tell me how to start and -what is more important- HOW TO PUT EVERY THING TOGETHER, SO THAT IT FIT'S AND WORKS SMOOTHLY... greetz to all, Marcus Wagner --__--__-- Message: 7 Reply-To: <[EMAIL PROTECTED]> From: "Enrique LaRoche" <[EMAIL PROTECTED]> To: "Stefano Y" <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]> Subject: RE: [BAWUG] WAP11 DSL <-->AP<--> AP <--> Client Date: Fri, 27 Sep 2002 23:31:17 -0700 Looks like less than 300' Use an omni directional antenna with the highest gain you can get. no secondary AP needed. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Stefano Y Sent: Friday, September 27, 2002 12:25 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: [BAWUG] WAP11 DSL <-->AP<--> AP <--> Client Hello all, I already have an AP with Agere or Intersil Chipset that connected DSL and it's working fine. However, I like to extend the range can I just buy 1 of Linksys WAP11? What I like to do is: DSL/router <----> AP <--100'--> AP <--60'--> Client | | Client Thanks. Stefano __________________________________________________ Do you Yahoo!? New DSL Internet Access from SBC & Yahoo! http://sbc.yahoo.com -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless --__--__-- Message: 8 Date: Sat, 28 Sep 2002 19:45:22 +0100 To: [EMAIL PROTECTED] From: Julian Bond <[EMAIL PROTECTED]> Subject: Re: [BAWUG] WAPs with built in router-firewall Julian Bond <[EMAIL PROTECTED]> wrote: >There are a number of WAPs appearing on the market now aimed at the >residential market >The reason I ask is that they appear to have a fairly comprehensive >packet filtering firewall built in. So it looks like it should be >possible to run a wide open WLAN but still apply enough rules to >adequately secure both the local LAN and trusted WLAN stations while >giving access to guests that still prevents the more dangerous >exploits. In other words, doing a lot of NoCat's job without needing a >Linux gateway. Which makes this particularly interesting. http://www.80211-planet.com/news/article/0,4000,1481_1471651,00.html Cable modem, WAP, 4 port ethernet *and* "The router/gateway functionality also includes security: the VPN-1/FireWall-1 solution from Check Point Software Technologies, and Safe@, a software program by Check Point owned SofaWare." See also Draytek Vigor 2600/we All the above (more or less) but ADSL modem built in. http://www.draytek.co.uk/products/vigor2600.html -- Julian Bond Email&MSM: [EMAIL PROTECTED] Webmaster: http://www.ecademy.com/ Personal WebLog: http://www.voidstar.com/ CV/Resume: http://www.voidstar.com/cv/ M: +44 (0)77 5907 2173 T: +44 (0)192 0412 433 --__--__-- -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless End of wireless Digest -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
