I noticed some problem in my dmesq NETIF_F_SG - what does it mean? And could my problem be because of that problem, whyle booting the kernel 00:09.0: 3Com PCI 3c905B Cyclone 100baseTx at 0xb000. Vers LK1.1.18-ac 00:01:02:72:20:83, IRQ 12 product code 4347 rev 00.12 date 07-11-00 Internal config register is 1800000, transceivers 0xa. 8K byte-wide RAM 5:3 Rx:Tx split, autoselect/Autonegotiate interface. MII transceiver found at address 24, status 7849. Enabling bus-master transmits and whole-frame receives. 00:09.0: scatter/gather enabled. h/w checksums enabled PCI: Found IRQ 10 for device 00:0b.0 See Documentation/networking/vortex.txt 00:0b.0: 3Com PCI 3c905 Boomerang 100baseTx at 0xa800. Vers LK1.1.18-ac 00:60:08:ca:51:c4, IRQ 10 product code 4b4b rev 00.0 date 12-05-97 Internal config register is 16302d8, transceivers 0xe040. 8K word-wide RAM 3:5 Rx:Tx split, autoselect/MII interface. MII transceiver found at address 24, status 786d. Enabling bus-master transmits and whole-frame receives. 00:0b.0: scatter/gather enabled. h/w checksums disabled eth1: Dropping NETIF_F_SG since no checksum feature. Hello Oleg, Tuesday, December 2, 2003, 9:50:27 PM, you wrote: OS> Hello All, OS> After N iterations of compiling kernel, installing iptables, applying OS> patch-o-matic... OS> the following command in a script from NAT HOWTO failed to execute OS> iptables -t nat -A POSTROUTING -o eth0 -j SNAT --to-source XXX.XXX.XXX.XXX OS> with an error "iptables: Invalid argument" I suspect, that an argument OS> is XXX.XXX.XXX.XXX OS> yesterday everything was fine (even more - it used to work with OS> iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE but now OS> to the command -j MASQUERADE it says - "iptables: Invalid argument") OS> ok OS> I changed -j MASQUERADE to -j SNAT - it demanded --to-source OS> I issued the above and got stuck on that OS> Anybody has a clue on it? OS> Debian 3.0 OS> iptables v1.2.9 OS> kernel 2.4.22 OS> I even tryed to reboot with an old kernel - the result is the same. OS> Please help -- Best regards, Oleg mailto:savostyanov@xxxxxxxxxxxxxxxxxxxxx