G
Guest
Hello all networking gurus,
I'm trying to create a VPN to share files between my home network and my
friend's laptop which frequently moves from one location to another.
Typically, everything works fine. I've also enabled split tunneling on his
laptop to ensure that he can access the internet and my VPN simultaneously.
However, the problem is that my friend's computer uses DHCP to obtain it's IP
address (e.g. free WiFi at coffee shops, etc.) and sometimes he obtains an IP
address which conflicts with my home network IPs and internet connection
problems appear once he connects to my VPN. (n.b. presumably due to the
routing table changes which occur once he forms the VPN connection). To the
best of my knowledge, the reason duplicate IP addresses appear in the first
place is because the DHCP server at his location uses the same pool of IP
addresses as the DHCP server on my home network (192.168.0.x). Because he
connects to publically available wireless access points he cannot administer
them to prevent duplicate IPs and, after thinking quite a bit, I've decided
I'd like to modify my network in such a way that it ensures my friend's
laptop can connect without problems regardless of his location and my/his
available IP address range.
I've considered manually changing the IPs for all computers on my home
network whenever there is a duplicate IP address problem, but this has many
disadvantages: it requires downtime for my entire home network of multiple
computers, is very annoying to my friend, is time-consuming for me to
administer, etc.. So... what are my options? All computers are Windows XP
Home Edition and I host the PPTP VPN server on my home machine. I can fully
administer my end of the network (e.g. access points, firewalls, etc.).
Thanks very very much in advance,
Shaun
I'm trying to create a VPN to share files between my home network and my
friend's laptop which frequently moves from one location to another.
Typically, everything works fine. I've also enabled split tunneling on his
laptop to ensure that he can access the internet and my VPN simultaneously.
However, the problem is that my friend's computer uses DHCP to obtain it's IP
address (e.g. free WiFi at coffee shops, etc.) and sometimes he obtains an IP
address which conflicts with my home network IPs and internet connection
problems appear once he connects to my VPN. (n.b. presumably due to the
routing table changes which occur once he forms the VPN connection). To the
best of my knowledge, the reason duplicate IP addresses appear in the first
place is because the DHCP server at his location uses the same pool of IP
addresses as the DHCP server on my home network (192.168.0.x). Because he
connects to publically available wireless access points he cannot administer
them to prevent duplicate IPs and, after thinking quite a bit, I've decided
I'd like to modify my network in such a way that it ensures my friend's
laptop can connect without problems regardless of his location and my/his
available IP address range.
I've considered manually changing the IPs for all computers on my home
network whenever there is a duplicate IP address problem, but this has many
disadvantages: it requires downtime for my entire home network of multiple
computers, is very annoying to my friend, is time-consuming for me to
administer, etc.. So... what are my options? All computers are Windows XP
Home Edition and I host the PPTP VPN server on my home machine. I can fully
administer my end of the network (e.g. access points, firewalls, etc.).
Thanks very very much in advance,
Shaun