For smb, connect
smb://192.168.1.1/ with no share information, the dialog box will prompt you for the share.
For nfs, use
nfs://192.168.1.1/export/Disk-1 you'll need the share info
Editing the nsmb.conf file works fine, I've been using NASLite v1 on my G4/Tiger with no problem.
As far as poor NFS speeds, I think Glo8al posted he was getting 700ks on NFS, my opinion is you have an IRQ conflict somewhere. I've seen those speeds with SATA cards while testing NL2 due to IRQ conflicts, turn everything off, parallel port, gameport etc that is not needed.
Here's a benchmark on NFS and SAMBA using diskwriggler.
This is from my G4 to one of the NL2 test boxes.
./diskWriggler -2K -t -n 300 -o /Volumes/192.168.1.1
NFS :
Read Summary : 300.00 frames in 374.25 secs
: 0.64(min) 0.80(avg) 0.84(max) FPS
: 7.81(min) 9.74(avg) 10.16(max) MB/s
Write Summary : 300.00 frames in 476.57 secs
: 0.40(min) 0.63(avg) 0.67(max) FPS
: 4.84(min) 7.65(avg) 8.15(max) MB/s
SAMBA:
Read Summary : 300.00 frames in 393.81 secs
: 0.64(min) 0.76(avg) 0.79(max) FPS
: 7.78(min) 9.26(avg) 9.55(max) MB/s
Write Summary : 300.00 frames in 417.77 secs
: 0.17(min) 0.72(avg) 0.76(max) FPS
: 2.02(min) 8.73(avg) 9.22(max) MB/s
Here's diskwriggler from my G4 to my Powerbook using AFS
AFS:
Read Summary : 300.00 frames in 430.27 secs
: 0.52(min) 0.70(avg) 0.77(max) FPS
: 6.31(min) 8.48(avg) 9.39(max) MB/s
Write Summary : 300.00 frames in 414.65 secs
: 0.62(min) 0.72(avg) 0.78(max) FPS
: 7.49(min) 8.80(avg) 9.54(max) MB/s
As you can see, NFS had the fastest read speed, and AFS barely beat Samba in write speed 414.65s secs to 417 secs