internet speed very slow when connected to vpn in fedora 12

[domnulnopcea]

Hi,

I have the following nasty issue:

I am using fedora 12 and I use vpn for working remote. When I browse the internet the speed is very slow!

even when I do a yum update it downloads the packages with max 100kb. if I drop the vpn connection I download the packages with 1Mb

do you know what the problem could be? i created the vpn connection using the network manager...it is a regular pptp connection for the vpn!

please help me

[domnulnopcea]

is anyone having this issue? can anyone help me?

[Keldorn]

Try to see what in your routing table when you are connected to vpn. May be be vpn connection changes ypur default route?

[domnulnopcea]

aha, ok!

How do I see what is in my routing table?

Thanks for answering

[Keldorn]

Use this command

ip route

or this one

route

[domnulnopcea]

Hi,

this is what I get

[flavius@localhost ~]$ ip route
192.168.223.3 dev ppp0 proto kernel scope link src 192.168.223.224
87.195.151.56 via 192.168.0.1 dev eth1 proto static
87.195.151.56 via 192.168.0.1 dev eth1 src 192.168.0.100
192.168.0.0/24 dev eth1 proto kernel scope link src 192.168.0.100 metric 2
default dev ppp0 proto static
[flavius@localhost ~]$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.223.3 * 255.255.255.255 UH 0 0 0 ppp0
dsl-087-195-151 dir-615 255.255.255.255 UGH 0 0 0 eth1
dsl-087-195-151 dir-615 255.255.255.255 UGH 0 0 0 eth1
192.168.0.0 * 255.255.255.0 U 2 0 0 eth1
default * 0.0.0.0 U 0 0 0 ppp0
[flavius@localhost ~]$

is this helpful in any way?

[Keldorn]

And now show routing table when you don't connected to vpn

[domnulnopcea]

Hi,

[flavius@localhost ~]$ ip route
87.195.151.56 via 192.168.0.1 dev eth1 src 192.168.0.100
192.168.0.0/24 dev eth1 proto kernel scope link src 192.168.0.100 metric 2
default via 192.168.0.1 dev eth1 proto static
[flavius@localhost ~]$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
dsl-087-195-151 dir-615 255.255.255.255 UGH 0 0 0 eth1
192.168.0.0 * 255.255.255.0 U 2 0 0 eth1
default dir-615 0.0.0.0 UG 0 0 0 eth1

Thanks

[Keldorn]

Here it is:

default dev ppp0 proto static

and

default via 192.168.0.1 dev eth1 proto static

So, when you connected to vpn you need to change your default route manually (or change your vpn-connection script, if it is possible)
try this

ip route add default via 192.168.0.1 dev eth1

(from root)

[domnulnopcea]

Hi,

Thank you very much for debugging my issue

when I run you command I get the result:

[flavius@localhost ~]$ sudo ip route add default via 192.168.0.1 dev eth1
RTNETLINK answers: File exists

Is this ok?

can you please explain me what the command does?

[Keldorn]

It should change your default route to web. It seems to me that when you are connected to vpn - applications try to go through vpn channel to access web and it slows down your internet connection.
Ok. then delete your defauld route

ip route del default dev ppp0
ip route add default via 192.168.0.1 dev eth1
ip route add dev ppp0

I think it should be something like that

[domnulnopcea]

thanks! It really helped! now the speed is much better!

is there a way to set this from the network manager for the vpn connection?

[Keldorn]

is there a way to set this from the network manager for the vpn connection?

Really don't know - I am always erasing network manager -)

[domnulnopcea]

now the problem is that after I run the command I am no longer connected to the vpn...

and If I connect again the same problem occurs!

do you have a solution?

[Keldorn]

can you show routing table wich you have got after this commands?

ip route del default dev ppp0
ip route add default via 192.168.0.1 dev eth1
ip route add dev ppp0