What is the client configuration? Ray Gwinn wrote about "Re: [leaf-wisp] Routing problem": > Vladimir, I eliminated the overlapping networks, and the same routing symptoms > persist. > > I have reduced the setup to as minimal as I can. The hardware is a Soekris 4521, but > with only one pcmcia card installed and enabled. > > If I enable layer 3 bridging, all works well. There is only one device in the layer > 3 bridge, > netcs0. The "ip route" output with layer 3 enabled, and just after boot is as > follows: > > 192.168.0.1 dev eth0 scope link metric 50 > 10.0.0.0/16 dev netcs0 proto kernel scope link src 10.0.1.3 > 192.168.0.0/16 dev eth0 proto kernel scope link src 192.168.0.2 > default via 192.168.0.1 dev eth0 > > The output of "ip route" after a wireless client connects is as follows: > > 192.168.0.1 dev eth0 scope link metric 50 > 10.0.5.243 dev netcs0 scope link metric 50 > 10.0.0.0/16 dev netcs0 proto kernel scope link src 10.0.1.3 > 192.168.0.0/16 dev eth0 proto kernel scope link src 192.168.0.2 > default via 192.168.0.1 dev eth0 > > The above setup works! > > ----------------------------------------------- > > If I turn off lawyer 3 bridging, and make NO OTHER changes, "ip route" just after > boot > shows the following: > > 10.0.0.0/16 dev netcs0 proto kernel scope link src 10.0.1.3 > 192.168.0.0/16 dev eth0 proto kernel scope link src 192.168.0.2 > default via 192.168.0.1 dev eth0 > > And with the above routes, wireless clients cannot connect. And again, it seems > that > routes are not being set correctly when parprouted is not in the picture. The > missing > static (I think) route to 192.168.0.1 seems to be the problem. > > The if.config file follows: > > DEFAULT_GW="192.168.0.1 dev eth0" > eth0_IPADDR="192.168.0.2/16" > BR_IFACES="netcs0 " > IFACES="eth0 netcs0 " > br0_IPADDR="10.0.1.3/16" > ENABLE_L2_BRIDGING="no" > netcs0_IPADDR="10.0.1.3/16" > NAT_IFACE="eth0" > ENABLE_PARP_BRIDGING="no" > > And as before, the only difference between failure and success is setting > ENABLE_PARP_BRIDGING="yes". > > Any advice is appreciated. If I get this figured out, I will write a mini HowTo > which may > prevent these types of questions by others in the future. > > Ray > > On 24 Feb 2004 at 15:57, Vladimir Ivaschenko wrote: > > > > > You can have overlapping networks with interfaces only when layer 3 > > bridging is enabled; that's actually what layer 3 bridging is for. :) > > > > In normal life, each interface has it's own, unique subnet. For a nice > > TCP/IP introduction, see this link: > > http://www.faqs.org/docs/linux_network/ > > > > Ray Gwinn wrote: > > > It will take me awhile to get back to where I can get the "ip route" > > > outputs. I will send those later today. > > > > > > > > >>I'm a bit confused as it seems that you have overlapping networks on > > >>the interfaces. > > > > > > > > > I am very NEW to this whole thing so I probably have some really dumb > > > mistakes in my setup. I assume you mean the 10.0.0.0/16 networks on both > > > eth0 and netcs0. I have wondered about that also. > > > > > > Those routes are setup by Wisp-Dist (not me) based on the if.config file at > > > the end of my original message (also quoted below). Can you suggest > > > changes? > > > > > > However, even with the network overlaps, all works okay when layer 3 > > > bridging is enabled. I think it works because of the static host route to > > > 10.0.0.1, added by parprouted (I think). > > > > > > When layer 3 bridging is turned off, the static route to 10.0.0.1 is > > > missing, and routes to wireless clients are not added to the routing table. > > > > > > Ray > > > > > > On 24 Feb 2004 at 12:10, Vladimir Ivaschenko wrote: > > > > > > > > >>Ray, > > >> > > >>I suggest you to use "ip route" command to get a list of routes, > > >>netstat -nr doesn't show everything. Can you send me it's output? > > >> > > >>I'm a bit confused as it seems that you have overlapping networks on > > >>the interfaces. > > >> > > >>Ray Gwinn wrote: > > >> > > >>>Valadimir, I have encountered a problem that I hope you can help with. It > > >>>seems that when layer 3 bridging is disabled, wireless clients cannot > > >>>connect. It seems as though routing is not being setup correctly. > > >>> > > >>>The hardware is a Soekris 4521, but only one card (netcs0) installed and > > >>>enabled. > > >>> > > >>>Note that 10.0.0.1 is the default gateway and is a linux box directly > > >>>connected to the Soekris via an ethernet switch. The ip of eth0 is > > >>>10.0.0.2. > > >>> > > >>>First, with layer 3 bridging enabled, with one device in the bridge > > >>>(netcs0), and immediately following a boot, "netstat -nr" shows the > > >>>following: > > >>> > > >>>Kernel IP routing table > > >>>Destination Gateway Genmask Flags MSS Window irtt Iface > > >>>10.0.0.1 0.0.0.0 255.255.255.255 UH 40 0 0 eth0 > > >>>10.0.0.0 0.0.0.0 255.255.0.0 U 40 0 0 eth0 > > >>>10.0.0.0 0.0.0.0 255.255.0.0 U 40 0 0 netcs0 > > >>>0.0.0.0 10.0.0.1 0.0.0.0 UG 40 0 0 eth0 > > >>> > > >>>After a wireless client (notebook computer) connects the routing table > > >>>looks like the following: > > >>> > > >>>Kernel IP routing table > > >>>Destination Gateway Genmask Flags MSS Window irtt Iface > > >>>10.0.0.1 0.0.0.0 255.255.255.255 UH 40 0 0 eth0 > > >>>10.0.5.243 0.0.0.0 255.255.255.255 UH 40 0 0 netcs0 > > >>>10.0.0.0 0.0.0.0 255.255.0.0 U 40 0 0 eth0 > > >>>10.0.0.0 0.0.0.0 255.255.0.0 U 40 0 0 netcs0 > > >>>0.0.0.0 10.0.0.1 0.0.0.0 UG 40 0 0 eth0 > > >>> > > >>>All is well with the above, the wireless client connects and can surff the > > >>>net. > > >>> > > >>>Now, if I go into config and disable layer 3 bridging, I see the following > > >>>immediately after boot. > > >>> > > >>>Kernel IP routing table > > >>>Destination Gateway Genmask Flags MSS Window irtt Iface > > >>>10.0.0.0 0.0.0.0 255.255.0.0 U 40 0 0 eth0 > > >>>10.0.0.0 0.0.0.0 255.255.0.0 U 40 0 0 netcs0 > > >>>0.0.0.0 10.0.0.1 0.0.0.0 UG 40 0 0 eth0 > > >>> > > >>>And with the above, wireless clients cannot connect. If I execute the > > >>>following, the wireless client can connect. > > >>> > > >>>ip route add 10.0.0.1/32 dev eth0 > > >>>ip addr add 10.0.0.1/32 dev eth0 > > >>> > > >>>After finding the dhcp assigned address assigned to the wireless client, I > > >>>can execute something like the following: > > >>> > > >>>ip route add 10.0.5.242/32 dev netcs0 > > >>> > > >>>and the wireless client can sruff the net. Basically, I have done manually > > >>>what I beleive Wisp-Dist is intended to do. > > >>> > > >>>As best I can tell from looking at the scripts is that parprouted is the > > >>>only difference when turning layer 3 bridging on and off. > > >>> > > >>>The if.config file is below. The only difference between failure and > > >>>success is setting ENABLE_PARP_BRIDGING="yes". > > >>> > > >>>eth0_IPADDR="10.0.0.2/16" > > >>>br0_IPADDR="10.0.1.3/16" > > >>>ENABLE_L2_BRIDGING="no" > > >>>netcs0_IPADDR="10.0.1.3/16" > > >>>NAT_IFACE="eth0" > > >>>BR_IFACES="netcs0 " > > >>>IFACES="eth0 netcs0 " > > >>>DEFAULT_GW="10.0.0.1 dev eth0" > > >>>ENABLE_PARP_BRIDGING="no" > > >>> > > >>>Sorry for such a long message. Is there any advice, or help you can > > >>>provide? > > >>> > > >>>Ray > > >>> > > >>> > > >>> > > >>>------------------------------------------------------- > > >>>SF.Net is sponsored by: Speed Start Your Linux Apps Now. > > >>>Build and deploy apps & Web services for Linux with > > >>>a free DVD software kit from IBM. Click Now! > > >>>http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click > > >>>_______________________________________________ > > >>>leaf-wisp-dist mailing list > > >>>[EMAIL PROTECTED] > > >>>https://lists.sourceforge.net/lists/listinfo/leaf-wisp-dist > > >>> > > >> > > >> > > >>-- > > >>Best Regards, > > >>Vladimir Ivashchenko > > >>ThunderWorx - www.thunderworx.com > > >>Senior Systems Designer/Engineer > > > > > > > > > > > > > > > > > > ------------------------------------------------------- > > > SF.Net is sponsored by: Speed Start Your Linux Apps Now. > > > Build and deploy apps & Web services for Linux with > > > a free DVD software kit from IBM. Click Now! > > > http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click > > > _______________________________________________ > > > leaf-wisp-dist mailing list > > > [EMAIL PROTECTED] > > > https://lists.sourceforge.net/lists/listinfo/leaf-wisp-dist > > > > > > > > > -- > > Best Regards, > > Vladimir Ivashchenko > > ThunderWorx - www.thunderworx.com > > Senior Systems Designer/Engineer > >
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