Every time I connect to my VPN, I should run
sudo ifconfig ppp0 mtu 1300
How could I make it permanent?
I am using Ubuntu 14.04.
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4 Answers
As I said at this Link
You can make your custom script
at this address : /etc/network/if-up.d,
#!/bin/sh
if [ "$IFACE" = "ppp0" ]; then
sudo ifconfig ppp0 mtu 1300
fi
finally make executable and enjoy from your life ...
I've tried to apply Farshad's solution on ubuntu 16, and it wasn't working.
Only small fix was needed there - remove sudo inside your script, because everything inside /etc/network/if-up.d/ dir is already run as root user
#!/bin/sh
if [ "$IFACE" = "ppp0" ]; then
ifconfig ppp0 mtu 1300
fi
You can define the mtu setting inside the /etc/ppp/options file. The setting should already be present in the options file but should be commented out by default.
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It's not working, I diconnect and connect again but still shows 1400 mtu size Aug 25, 2015 at 6:26
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@MohseTaheri: You will have to look into the PPTP config file (
/etc/pptpd.conf) to see what file is defined for theoptionsetting. By default, PPP looks in/etc/ppp/optionsbut on Debian systems I have seen that the setting is overwritten to look into/etc/ppp/pptpd-options. You may have to make changes accordingly.– ayazAug 25, 2015 at 7:08 -
it read
/etc/ppp/optionsbecause when I set wrong mtu size it shows me an error but after setting correct value it doesn't change the mtu size after connection Aug 25, 2015 at 7:10 -
This worked on Ubuntu 22.04, been looking for this solution for a while Sep 21, 2022 at 10:16
as farshad said in following link:
the answer is add new file inside /etc/network/if-up.d/:
#!/bin/sh
if [ "$IFACE" = "ppp0" ]; then
sudo ifconfig ppp0 mtu 1300
fi