HOWTO: PPtP VPN

Hi,

Having some issues with this hopefully someone can point me in the right direction.

Have a Pro6 with firmware 4.2.21.
Linux NV6-PRO 2.6.37.6.RNx86_64.2.4 #1 SMP Mon May 21 16:00:40 PDT 2012 x86_64 GNU/Linux

I get the follow error.

NV6-PRO:/c/devel/2try/linux-2.6.37.6# cp drivers/net/*.ko /lib/modules/2.6.37.6.RNx86_64.2.4/kernel/drivers/net/
NV6-PRO:/c/devel/2try/linux-2.6.37.6# depmod -a
NV6-PRO:/c/devel/2try/linux-2.6.37.6# modprobe ppp_generic
FATAL: Error inserting ppp_generic (/lib/modules/2.6.37.6.RNx86_64.2.4/kernel/drivers/net/ppp_generic.ko): Invalid argument

get more info

NV6-PRO:/c/devel/2try/linux-2.6.37.6# tail -n30 /var/log/syslog
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: disagrees about version of symbol __alloc_skb
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: Unknown symbol __alloc_skb (err -22)
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: disagrees about version of symbol skb_queue_tail
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: Unknown symbol skb_queue_tail (err -22)
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: disagrees about version of symbol skb_pull
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: Unknown symbol skb_pull (err -22)
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: disagrees about version of symbol skb_push
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: Unknown symbol skb_push (err -22)
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: disagrees about version of symbol register_netdev
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: Unknown symbol register_netdev (err -22)
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: disagrees about version of symbol free_netdev
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: Unknown symbol free_netdev (err -22)
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: disagrees about version of symbol unregister_pernet_device
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: Unknown symbol unregister_pernet_device (err -22)
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: disagrees about version of symbol dev_alloc_skb
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: Unknown symbol dev_alloc_skb (err -22)
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: disagrees about version of symbol skb_queue_purge
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: Unknown symbol skb_queue_purge (err -22)
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: disagrees about version of symbol __pskb_pull_tail
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: Unknown symbol __pskb_pull_tail (err -22)
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: disagrees about version of symbol netif_rx
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: Unknown symbol netif_rx (err -22)
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: disagrees about version of symbol skb_trim
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: Unknown symbol skb_trim (err -22)
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: disagrees about version of symbol __register_chrdev
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: Unknown symbol __register_chrdev (err -22)
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: disagrees about version of symbol register_pernet_device
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: Unknown symbol register_pernet_device (err -22)
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: disagrees about version of symbol skb_queue_head
Jul 1 08:56:56 NV6-PRO kernel: ppp_generic: Unknown symbol skb_queue_head (err -22)
NV6-PRO:/c/devel/2try/linux-2.6.37.6#



ppp_generic: disagrees about version of symbol skb_copy_bits
ppp_generic: Unknown symbol skb_copy_bits (err -22)
ppp_generic: disagrees about version of symbol skb_put
ppp_generic: Unknown symbol skb_put (err -22)
ppp_generic: disagrees about version of symbol __netif_schedule
ppp_generic: Unknown symbol __netif_schedule (err -22)
ppp_generic: disagrees about version of symbol unregister_netdev
ppp_generic: Unknown symbol unregister_netdev (err -22)
ppp_generic: disagrees about version of symbol skb_dequeue
ppp_generic: Unknown symbol skb_dequeue (err -22)
ppp_generic: disagrees about version of symbol skb_pull_rcsum
ppp_generic: Unknown symbol skb_pull_rcsum (err -22)
ppp_generic: disagrees about version of symbol skb_copy_datagram_iovec
ppp_generic: Unknown symbol skb_copy_datagram_iovec (err -22)
ppp_generic: disagrees about version of symbol pskb_expand_head
ppp_generic: Unknown symbol pskb_expand_head (err -22)
ppp_generic: disagrees about version of symbol kfree_skb
ppp_generic: Unknown symbol kfree_skb (err -22)
ppp_generic: disagrees about version of symbol alloc_netdev_mq
ppp_generic: Unknown symbol alloc_netdev_mq (err -22)
ppp_generic: disagrees about version of symbol __alloc_skb
ppp_generic: Unknown symbol __alloc_skb (err -22)
ppp_generic: disagrees about version of symbol skb_queue_tail
ppp_generic: Unknown symbol skb_queue_tail (err -22)
ppp_generic: disagrees about version of symbol skb_pull
ppp_generic: Unknown symbol skb_pull (err -22)
ppp_generic: disagrees about version of symbol skb_push
ppp_generic: Unknown symbol skb_push (err -22)
ppp_generic: disagrees about version of symbol register_netdev
ppp_generic: Unknown symbol register_netdev (err -22)
ppp_generic: disagrees about version of symbol free_netdev
ppp_generic: Unknown symbol free_netdev (err -22)
ppp_generic: disagrees about version of symbol unregister_pernet_device
ppp_generic: Unknown symbol unregister_pernet_device (err -22)
ppp_generic: disagrees about version of symbol dev_alloc_skb
ppp_generic: Unknown symbol dev_alloc_skb (err -22)
ppp_generic: disagrees about version of symbol skb_queue_purge
ppp_generic: Unknown symbol skb_queue_purge (err -22)
ppp_generic: disagrees about version of symbol __pskb_pull_tail
ppp_generic: Unknown symbol __pskb_pull_tail (err -22)
ppp_generic: disagrees about version of symbol netif_rx
ppp_generic: Unknown symbol netif_rx (err -22)
ppp_generic: disagrees about version of symbol skb_trim
ppp_generic: Unknown symbol skb_trim (err -22)
ppp_generic: disagrees about version of symbol __register_chrdev
ppp_generic: Unknown symbol __register_chrdev (err -22)
ppp_generic: disagrees about version of symbol register_pernet_device
ppp_generic: Unknown symbol register_pernet_device (err -22)
ppp_generic: disagrees about version of symbol skb_queue_head
ppp_generic: Unknown symbol skb_queue_head (err -22)
ppp_generic: disagrees about version of symbol skb_copy_bits
ppp_generic: Unknown symbol skb_copy_bits (err -22)
ppp_generic: disagrees about version of symbol skb_put
ppp_generic: Unknown symbol skb_put (err -22)
ppp_generic: disagrees about version of symbol __netif_schedule
ppp_generic: Unknown symbol __netif_schedule (err -22)
ppp_generic: disagrees about version of symbol unregister_netdev
ppp_generic: Unknown symbol unregister_netdev (err -22)
ppp_generic: disagrees about version of symbol skb_dequeue
ppp_generic: Unknown symbol skb_dequeue (err -22)
ppp_generic: disagrees about version of symbol skb_pull_rcsum
ppp_generic: Unknown symbol skb_pull_rcsum (err -22)
ppp_generic: disagrees about version of symbol skb_copy_datagram_iovec
ppp_generic: Unknown symbol skb_copy_datagram_iovec (err -22)
ppp_generic: disagrees about version of symbol pskb_expand_head
ppp_generic: Unknown symbol pskb_expand_head (err -22)
ppp_generic: disagrees about version of symbol kfree_skb
ppp_generic: Unknown symbol kfree_skb (err -22)
ppp_generic: disagrees about version of symbol alloc_netdev_mq
ppp_generic: Unknown symbol alloc_netdev_mq (err -22)
ppp_generic: disagrees about version of symbol __alloc_skb
ppp_generic: Unknown symbol __alloc_skb (err -22)
ppp_generic: disagrees about version of symbol skb_queue_tail
ppp_generic: Unknown symbol skb_queue_tail (err -22)
ppp_generic: disagrees about version of symbol skb_pull
ppp_generic: Unknown symbol skb_pull (err -22)
ppp_generic: disagrees about version of symbol skb_push
ppp_generic: Unknown symbol skb_push (err -22)
ppp_generic: disagrees about version of symbol register_netdev
ppp_generic: Unknown symbol register_netdev (err -22)
ppp_generic: disagrees about version of symbol free_netdev
ppp_generic: Unknown symbol free_netdev (err -22)
ppp_generic: disagrees about version of symbol unregister_pernet_device
ppp_generic: Unknown symbol unregister_pernet_device (err -22)
ppp_generic: disagrees about version of symbol dev_alloc_skb
ppp_generic: Unknown symbol dev_alloc_skb (err -22)
ppp_generic: disagrees about version of symbol skb_queue_purge
ppp_generic: Unknown symbol skb_queue_purge (err -22)
ppp_generic: disagrees about version of symbol __pskb_pull_tail
ppp_generic: Unknown symbol __pskb_pull_tail (err -22)
ppp_generic: disagrees about version of symbol netif_rx
ppp_generic: Unknown symbol netif_rx (err -22)
ppp_generic: disagrees about version of symbol skb_trim
ppp_generic: Unknown symbol skb_trim (err -22)
ppp_generic: disagrees about version of symbol __register_chrdev
ppp_generic: Unknown symbol __register_chrdev (err -22)
ppp_generic: disagrees about version of symbol register_pernet_device
ppp_generic: Unknown symbol register_pernet_device (err -22)
ppp_generic: disagrees about version of symbol skb_queue_head
ppp_generic: Unknown symbol skb_queue_head (err -22)
ppp_generic: disagrees about version of symbol skb_copy_bits
ppp_generic: Unknown symbol skb_copy_bits (err -22)
ppp_generic: disagrees about version of symbol skb_put
ppp_generic: Unknown symbol skb_put (err -22)
ppp_generic: disagrees about version of symbol __netif_schedule
ppp_generic: Unknown symbol __netif_schedule (err -22)
ppp_generic: disagrees about version of symbol unregister_netdev
ppp_generic: Unknown symbol unregister_netdev (err -22)
ppp_generic: disagrees about version of symbol skb_dequeue
ppp_generic: Unknown symbol skb_dequeue (err -22)
ppp_generic: disagrees about version of symbol skb_pull_rcsum
ppp_generic: Unknown symbol skb_pull_rcsum (err -22)
ppp_generic: disagrees about version of symbol skb_copy_datagram_iovec
ppp_generic: Unknown symbol skb_copy_datagram_iovec (err -22)
ppp_generic: disagrees about version of symbol pskb_expand_head
ppp_generic: Unknown symbol pskb_expand_head (err -22)
ppp_generic: disagrees about version of symbol kfree_skb
ppp_generic: Unknown symbol kfree_skb (err -22)
ppp_generic: disagrees about version of symbol alloc_netdev_mq
ppp_generic: Unknown symbol alloc_netdev_mq (err -22)
ppp_generic: disagrees about version of symbol __alloc_skb
ppp_generic: Unknown symbol __alloc_skb (err -22)
ppp_generic: disagrees about version of symbol skb_queue_tail
ppp_generic: Unknown symbol skb_queue_tail (err -22)
ppp_generic: disagrees about version of symbol skb_pull
ppp_generic: Unknown symbol skb_pull (err -22)
ppp_generic: disagrees about version of symbol skb_push
ppp_generic: Unknown symbol skb_push (err -22)
ppp_generic: disagrees about version of symbol register_netdev
ppp_generic: Unknown symbol register_netdev (err -22)
ppp_generic: disagrees about version of symbol free_netdev
ppp_generic: Unknown symbol free_netdev (err -22)
ppp_generic: disagrees about version of symbol unregister_pernet_device
ppp_generic: Unknown symbol unregister_pernet_device (err -22)
ppp_generic: disagrees about version of symbol dev_alloc_skb
ppp_generic: Unknown symbol dev_alloc_skb (err -22)
ppp_generic: disagrees about version of symbol skb_queue_purge
ppp_generic: Unknown symbol skb_queue_purge (err -22)
ppp_generic: disagrees about version of symbol __pskb_pull_tail
ppp_generic: Unknown symbol __pskb_pull_tail (err -22)
ppp_generic: disagrees about version of symbol netif_rx
ppp_generic: Unknown symbol netif_rx (err -22)
ppp_generic: disagrees about version of symbol skb_trim
ppp_generic: Unknown symbol skb_trim (err -22)
ppp_generic: disagrees about version of symbol __register_chrdev
ppp_generic: Unknown symbol __register_chrdev (err -22)
ppp_generic: disagrees about version of symbol register_pernet_device
ppp_generic: Unknown symbol register_pernet_device (err -22)
ppp_generic: disagrees about version of symbol skb_queue_head
ppp_generic: Unknown symbol skb_queue_head (err -22)
NV6-PRO:/c/devel/2try/linux-2.6.37.6#

I have tried this with GPL 4.2.16 & 4.2.19 with same result. have I missed something.

tried to do with 4.2.21 GPL but couldnt find the correct files. (linux directory linux-atm....)

Any help would be greatly appreciated.