[U-Boot-Users] U-boot suppoorts VPN?
I am working on a project. And I need to download the kernel from another board. Because there are more than switch between 2 CPUs, VPN is needed to make tftp work. Some guy told me that u-boot supports VPN, but need to do some configuration. I did read the README file, didn't find anything about VPN. Any ideas? comments?
Thanks -- Sent from the Uboot - Users forum at Nabble.com: http://www.nabble.com/U-boot-suppoorts-VPN--t639481.html#a1700773
lauren73 (sent by Nabble.com) wrote:
I am working on a project. And I need to download the kernel from another board. Because there are more than switch between 2 CPUs, VPN is needed to make tftp work. Some guy told me that u-boot supports VPN, but need to do some configuration. I did read the README file, didn't find anything about VPN. Any ideas? comments?
VPN is not needed for UDP at all (o;
Otherwise all Cisco/Juniper/Nortel boxes must run some sort of VPN software to download new configs or update images (o;
Okay..junos uses ftp...
best regards rick
On Tuesday 29 November 2005 18:33, Richard Klingler wrote:
lauren73 (sent by Nabble.com) wrote:
I am working on a project. And I need to download the kernel from another board. Because there are more than switch between 2 CPUs, VPN is needed to make tftp work. Some guy told me that u-boot supports VPN, but need to do some configuration. I did read the README file, didn't find anything about VPN. Any ideas? comments?
VPN is not needed for UDP at all (o;
Otherwise all Cisco/Juniper/Nortel boxes must run some sort of VPN software to download new configs or update images (o;
Okay..junos uses ftp...
best regards rick
VPN no. VLAN yes.
Which is it?
Regards
Pantelis
In message 200511291849.45533.pantelis@embeddedalley.com you wrote:
VPN is not needed for UDP at all (o;
...
VPN no. VLAN yes.
VLAN *may* be used. But it is not necessary for a plain TFTP download either.
Best regards,
Wolfgang Denk
On Tuesday 29 November 2005 21:38, Wolfgang Denk wrote:
In message 200511291849.45533.pantelis@embeddedalley.com you wrote:
VPN is not needed for UDP at all (o;
...
VPN no. VLAN yes.
VLAN *may* be used. But it is not necessary for a plain TFTP download either.
Best regards,
Wolfgang Denk
Methinks the guy is just confusing VPN with VLANs.
Of course this has nothing to do with TFTP downloads and such...
Regards
Pantelis
Thanks a lot! I am sorry for confusing you. But the fact is that the 2 boards are connected as the following drawing. The hardware is designed as this. I need to download kernel for board 2 from hard drive of board 1. Usually switch cannot talk to switch without bridge or router. So in this case I think I need VPN in order to download the kernel using tftp.
HD----CPU1 ----switch1 ------switch 2----CPU2 (uboot) |----------board 1------ ---|-------------board 2--------------|
-- Sent from the Uboot - Users forum at Nabble.com: http://www.nabble.com/U-boot-suppoorts-VPN--t639481.html#a1701279
lauren73 (sent by Nabble.com) wrote:
Thanks a lot! I am sorry for confusing you. But the fact is that the 2 boards are connected as the following drawing. The hardware is designed as this. I need to download kernel for board 2 from hard drive of board 1. Usually switch cannot talk to switch without bridge or router. So in this case I think I need VPN in order to download the kernel using tftp.
I think you are mixing VLANs with VPNs here (o;
Yes..switches don't talk to each other usually but can be connected together without problems...they just forward packets and don't care about IP addresses (mostly ;o).
Just make sure the source/destination IP addresses are within same subnet..that's all...
Otherwise I would suggest some TCP/IP reading material first..
best regards rick
In message 438C8DDA.90803@uclinux.net you wrote:
lauren73 (sent by Nabble.com) wrote:
...
But the fact is that the 2 boards are connected as the following
...
I think you are mixing VLANs with VPNs here (o;
This was my thought at first, too. And in fact VLAN might be necessary by certain networking policies installed at lauren73's site, but in her/his mail there was no indication for this.
Best regards,
Wolfgang Denk
lauren73 (sent by Nabble.com) wrote:
Thanks a lot! I am sorry for confusing you. But the fact is that the 2 boards are connected as the following drawing. The hardware is designed as this. I need to download kernel for board 2 from hard drive of board 1. Usually switch cannot talk to switch without bridge or router. So in this case I think I need VPN in order to download the kernel using tftp.
HD----CPU1 ----switch1 ------switch 2----CPU2 (uboot) |----------board 1------ ---|-------------board 2--------------|
Assuming switch1 and switch2 are normal ethernet switches, you need a crossover cable connecting switches 1 and 2 (Tx of switch 1 -> Rx of switch 2 and vice versa) unless your switch PHYs support auto-crossover. You need CPU1 to run TFTP server software. The it should Just Work[tm], no VPN or VLAN.
On the other hand, your hardware may not be normal ethernet switches, in which case we have even less of a clue than you.
gvb
In message 1701279.post@talk.nabble.com you wrote:
Thanks a lot! I am sorry for confusing you.
I think it is *you* who is confused.
But the fact is that the 2 boards are connected as the following drawing. The hardware is designed as this. I need to download kernel for board 2 from hard drive of board 1. ...
Yes - this is a standard network setup. No problems.
... Usually switch cannot talk toswitch without bridge or router. So in this case
No. This is plain wrong. You are indeed seriously confused.
I think I need VPN in order to download the kernel using tftp.
No, you do not.
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I asked you before NOT to post HTML. Please respect the rules and policies of this mailing list.
Wolfgang Denk
In message 1700773.post@talk.nabble.com you wrote:
I am working on a project. And I need to download the kernel from another board. Because there are more than switch between 2 CPUs, VPN is needed to make tftp work. Some guy told me that u-boot supports
The number of switches in a network has nothing to do with the fact if you should use VPN or not.
VPN, but need to do some configuration. I did read the README file, didn't find anything about VPN. Any ideas? comments?
U-Boot does not support VPN.
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And never again post HTML on this list, please!
Best regards,
Wolfgang Denk
participants (5)
-
Jerry Van Baren -
lauren73 (sent by Nabble.com) -
Pantelis Antoniou -
Richard Klingler -
Wolfgang Denk