Re: [gentoo-user] Re: New wireless adapter breaks nfs exports

["J. Roeleveld" <joost@antarean.org>]

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On Tuesday, October 07, 2014 04:39:32 PM walt wrote:
> On 10/05/2014 08:31 PM, Tom H wrote:
> > On Sat, Oct 4, 2014 at 2:52 PM, walt <w41ter@gmail.com> wrote:
> >> This machine (my nfsv3 file server) just got a new wireless adapter,
> >> which
> >> works fine for everything except serving files :(
> >> 
> >> mount.nfs: requested NFS version or transport protocol is not 
supported
> >> 
> >> google shows me lots about slow nfs connections over wireless but 
nothing
> >> about non-support. I'm using only nfs3 ATM because I've had so 
many
> >> problems with nfs4 in the past. I thought I'd ask here if nfs4 might fix
> >> the problem before changing everything.
> > 
> > NFS works over wifi.
> > 
> > Have you tried mounting with "-v" and/or "-o nfsvers=3"?
> 
> Yes, about 30 seconds ago :)
> 
> #mount -v -t nfs -o nfsvers=3 a6://usr/portage /mnt
> mount.nfs: timeout set for Tue Oct  7 16:35:39 2014
> mount.nfs: trying text-based options 'nfsvers=3,addr=192.168.1.75'
> mount.nfs: prog 100003, trying vers=3, prot=6
> mount.nfs: trying 192.168.1.75 prog 100003 vers 3 prot TCP port 2049
> mount.nfs: prog 100005, trying vers=3, prot=17
> mount.nfs: trying 192.168.1.75 prog 100005 vers 3 prot UDP port 36168
> mount.nfs: mount(2): Protocol not supported
> mount.nfs: Protocol not supported
> 
> I have nfsv4 working correctly so the urgency is gone but I'm still
> curious if nfsv3 really should work over wifi as well as nfsv4.
> 
> Thanks.

I did have it working with my old laptop, but NFS isn't so happy with 
suddenly disappearing network connections.
I ended up using Samba and CIFS to access network shares.

Do you get the same behaviour when using a wired connection?

Also, something I found out when I tried to configure a network printer 
once, some badly designed wireless routers (The el-cheapo consumer 
ones) forget to bridge the LAN and WIFI portions of the network.
Try adding a route to the NFS-server via the IP of the router. That might 
also do the trick.

# route add <NFS-ip> gw <router-ip>

--
Joost


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