I use the Network Manager integrated in Ubuntu. I took a look at /etc/network/inferfaces but everything seemed ok. Plus, I just displayed it through cat, I didn't change anything.
Actually I live in a residence (I don't know if it's the same word in english). Internet is provided by my school. There is 7 seven residences in my school. In each one of them, the ip addresses are from 10.20x.0.0 to 10.20x.255.255 (with x as the number of the residence). To access the internet, we use a VPN and an HTTP proxy. And in order to access the websites of the school I need to have 255.255.0.0as netmask because the websites are local, I can't to access them through the proxy. But it's very strange, because if I boot with 255.255.0.0, it doesn't work. Then, if I change to 255.0.0.0, it works. If I change again to 255.255.0.0, it works too. But, if I boot with 255.0.0.0, it doesn't work. Then, if I change to 255.255.0.0, it works. So, I guess that it's a problem of updating with network configuration... But, if it works for everybody I don't why it wouldn't work for me. For now, I don't have my Ubuntu installed because I have some problem with my hard drive. So, I can't run any test. But If you want me to do some test, just ask, and as soon as I fix my problem I will run the tests. Johan 2008/4/8, Robert <[EMAIL PROTECTED]>: > > Networks with 10.0.0.0 are class A networks (see > http://www.iana.org/assignments/ipv4-address-space). So a netmask of > 255.0.0.0 is the standard default. > > Next questions: > > (1) where did you get 255.255.0.0 as the netmask? from your ISP? (If so, > I presume they are partitioning their network.) > > (2) what software are you using the configure your network? > NetworkManager, manual settings in /etc/network/inferfaces, or something > else? > > > -- > Problem at start with network configuration : network masks > https://bugs.launchpad.net/bugs/211231 > You received this bug notification because you are a direct subscriber > of the bug. > > > Status in Ubuntu: Incomplete > > > Bug description: > I'm running an Hardy Heron system. > I access internet through a vpn (through vpnc). > I configured my network manually for IP address, network and gateway. My > network mask is supposed to be 255.255.0.0 (for example, on Windows, it's > configured this way). > But when my computer starts, my network is not working : I can't ping > google.fr and vpnc can't launch, it displays "network unreachable". > In order to make it works, I change the mask to 255.0.0.0. And if I change > it back to 255.255.0.0, it works too. > > Thanks for the good work. > > Johan > ** Attachment added: "unnamed" http://launchpadlibrarian.net/13278374/unnamed -- Problem at start with network configuration : network masks https://bugs.launchpad.net/bugs/211231 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
