rohitsz Posted May 4, 2008 Report Share Posted May 4, 2008 Hi, First a bit of history: I have been for past couple of days trying to configure VPN client to work at home system. No success has been achieved on that front. So today, I wanted to remove those VPN network interfaces. I had three of them (in order from latest to oldest): ppp0,tun0,eth0. So first I stumbled across not finding a GUI to delete them, a quick google revealed: drakconnect --delete So I removed only the ppp0 interface. I rebooted, still the default interface was getting selected as tun0,previously ppp0 was selected. I manually selected eth0, the graphical icon showed that connection was successful :-) But a ping to the router resulted in an answer from the host itself. :huh: I pinged 192.168.1.1 and got response from 192.168.1.2, indicating some network error in the ping result. So I deleted the tun0 interface! Then I rebooted and saw problems relating to 1)DCOP server not being started(or not being readable) 2)Configuration files kfmclientrc and kdeglobals not writable These error screen came when I clicked the help option of the network icon(with a green tick or orange exclamation). Please help/suggest me what next to do :unsure: thanks, rohit. Quote Link to comment Share on other sites More sharing options...
ianw1974 Posted May 4, 2008 Report Share Posted May 4, 2008 It's not possible for the host to reply to the router IP unless eth0 was configured for 192.168.1.1. Since you got a reply from 192.168.1.2 - this was not a standard ping reply but communicating that there was some sort of error - which you just mentioned. If the interface had been up and configured with an IP correctly, no reply would have appeared unless the router was online to reply. So it would mean your interface was either down, or misconfigured. Rerun configuration for the network interfaces and reconfigure eth0 so that it is correctly done. You can also look in /etc/sysconfig/network-scripts and see if you have any interface files for ppp0 and tun0 and delete these as well. These should most likely be ifcfg-ppp0 and ifcfg-tun0 unless I'm mistaken, you can leave ifcfg-eth0 file though. Quote Link to comment Share on other sites More sharing options...
rohitsz Posted May 4, 2008 Author Report Share Posted May 4, 2008 (edited) Hi, here are the different outputs: [root@mandrivabox network-scripts]# pwd /etc/sysconfig/network-scripts [root@mandrivabox network-scripts]# ls cellular.d/ ifdown-post* ifup.d/ ifup-sit* hostname.d/ ifdown-ppp* ifup-eth* ifup-sl* ifcfg-eth0* ifdown-routes* ifup-ipv6* ifup-tunnel* ifcfg-lo@ ifdown-sit* ifup-ipx* ifup-wireless* ifdown@ ifdown-sl* ifup-plip* init.ipv6-global* ifdown-bnep* ifdown-tunnel* ifup-plusb* network-functions ifdown.d/ ifup@ ifup-post* network-functions-ipv6 ifdown-eth* ifup-aliases* ifup-ppp* vpn.d/ ifdown-ipv6* ifup-bnep* ifup-routes* wireless.d/ [root@mandrivabox network-scripts]# [root@mandrivabox home]# ifup eth0 [root@mandrivabox home]# ifconfig eth0 Link encap:Ethernet HWaddr 00:19:D1:B3:4C:66 inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) Interrupt:17 Base address:0xa000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:739 errors:0 dropped:0 overruns:0 frame:0 TX packets:739 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:58061 (56.7 KiB) TX bytes:58061 (56.7 KiB) [root@mandrivabox home]# ifconfig [root@mandrivabox home]# ping 192.168.1.1 PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data. From 192.168.1.2 icmp_seq=1 Destination Host Unreachable From 192.168.1.2 icmp_seq=2 Destination Host Unreachable From 192.168.1.2 icmp_seq=3 Destination Host Unreachable From 192.168.1.2 icmp_seq=6 Destination Host Unreachable From 192.168.1.2 icmp_seq=7 Destination Host Unreachable --- 192.168.1.1 ping statistics --- 7 packets transmitted, 0 received, +5 errors, 100% packet loss, time 6000ms , pipe 3 [root@mandrivabox home]# Another surprise: When I created the connection through the GUI, it did not comeup in the right-click menu of the network-icon. I had to do an ifup eth0 from console. Any thing on the DCOP server? Should I look at it at all? thanks, rohit. Edited May 4, 2008 by rohitsz Quote Link to comment Share on other sites More sharing options...
ianw1974 Posted May 4, 2008 Report Share Posted May 4, 2008 Check for link lights on the cable connection from your computer to the router to see if there are activity lights. If there are none, then there is no connection from the machine to the router. Quote Link to comment Share on other sites More sharing options...
rohitsz Posted May 18, 2008 Author Report Share Posted May 18, 2008 Hi ian, Check for link lights on the cable connection from your computer to the router to see if there are activity lights. If there are none, then there is no connection from the machine to the router. Well all that is done and checked. To my(and all) surprise, the network icon is showing connected now, but the problem now is no web browser is able to open up any website, although I can ping the linux box from another system and the other way round too... I can also ping my ISP gateway successfully. I tried firefox, konqueror, flock, opera and lynx. None of them are able to connect to any website! pleae help! rohit. :unsure: Quote Link to comment Share on other sites More sharing options...
ianw1974 Posted May 18, 2008 Report Share Posted May 18, 2008 Sounds like an ipv6 issue. In Firefox, type "about:config" without the quotes and then filter for ipv6 and enable the option to disable ipv6 by double-clicking it. You can also do it for the whole system as well: http://www.linuxsolutions.org/index.php?op...5&Itemid=26 Quote Link to comment Share on other sites More sharing options...
rohitsz Posted May 18, 2008 Author Report Share Posted May 18, 2008 Hi ian, Sounds like an ipv6 issue. In Firefox, type "about:config" without the quotes and then filter for ipv6 and enable the option to disable ipv6 by double-clicking it. You can also do it for the whole system as well: http://www.linuxsolutions.org/index.php?op...5&Itemid=26 I tried it all on my system, but nothing seems to work! rohit. Quote Link to comment Share on other sites More sharing options...
ianw1974 Posted May 18, 2008 Report Share Posted May 18, 2008 What's the contents of /etc/resolv.conf? Does it have a valid DNS Server listed? Quote Link to comment Share on other sites More sharing options...
rohitsz Posted May 18, 2008 Author Report Share Posted May 18, 2008 Hi ian, What's the contents of /etc/resolv.conf? Does it have a valid DNS Server listed? It has the entry as follows: nameserver <IP Address> I changed the address manually and restarted /etc/init.d/network but my changes were overwritten, so still no success! rohit. Quote Link to comment Share on other sites More sharing options...
scarecrow Posted May 18, 2008 Report Share Posted May 18, 2008 Edit your /etc/resolv.conf and add in there say nameserver 208.67.222.222 (this is the primary opendns server) Now restart network service network restart from a root console. Can you browse now? Quote Link to comment Share on other sites More sharing options...
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