Thanks rohan but our gateway on 24 ip block so i need to do it on way that i send , unortunately this wont work becuase that is a global ip adress and they can not set a gateway for each 255 block for ex. i have 5 more ip 2 of them is on 78.159.xx.xx block so i need to set default gw to 217.20.117.1 2010/3/29 Rohan Gilchrist <rohan at gilchrist.me> > So you're saying that your default gateway is an IP address that's part of > a *different* network/subnet? > > I don't know how this network has been designed, but typically I would > expect that your default gateway would be something like > > 188.72.255.1 > > rather than 217.20.117.1 that you've mentioned earlier. > > Take a look at mine for example: > > [~]ifconfig > eth0 Link encap:Ethernet HWaddr FE:FD:6D:4A:C1:69 > inet addr:109.xx.xxx.105 Bcast:109.74.193.255 > Mask:255.255.255.0 > inet6 addr: fe80::fcfd:6dff:fe4a:c169/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:78742 errors:0 dropped:0 overruns:0 frame:0 > TX packets:67114 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:35442733 (33.8 MiB) TX bytes:12607832 (12.0 MiB) > > 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:8292 errors:0 dropped:0 overruns:0 frame:0 > TX packets:8292 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:1195297 (1.1 MiB) TX bytes:1195297 (1.1 MiB) > > [~]netstat -rn > Kernel IP routing table > Destination Gateway Genmask Flags MSS Window irtt > Iface > 109.xx.xxx.0 0.0.0.0 255.255.255.0 U 0 0 0 > eth0 > 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 > eth0 > 0.0.0.0 109.xx.xxx.1 0.0.0.0 UG 0 0 0 > eth0 > > So you can see my host has .105 assigned to eth0, and the default gateway > is .1 of the same network/subnet. > > You might want to check that your addressing is correct. > > > > On Mon, 29 Mar 2010, cahit Eyig?nl? wrote: > > > there is no problem with my internet connection i just want that to do > this cent os automatically :route add default gw 217.20.117.1 > > before typing this my netstat -rn looks like this : > > root at lin3 [~]# netstat -rn (that is not able to connect to internet) > > Kernel IP routing table > > Destination Gateway Genmask Flags MSS Window irtt > Iface > > 217.20.117.1 0.0.0.0 255.255.255.255 UH 0 0 0 > eth0 > > 188.72.255.0 0.0.0.0 255.255.255.0 U 0 0 0 > eth0 > > 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 > eth0 > > after adding gateway : (this works perfect) > > root at lin3 [~]# netstat -rn > > Kernel IP routing table > > Destination Gateway Genmask Flags MSS Window irtt > Iface > > 217.20.117.1 0.0.0.0 255.255.255.255 UH 0 0 0 > eth0 > > 188.72.255.0 0.0.0.0 255.255.255.0 U 0 0 0 > eth0 > > 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 > eth0 > > 0.0.0.0 217.20.117.1 0.0.0.0 UG 0 0 0 > eth0 > > > > i just want to add bold line automatically > > > > and this is my ifconfig : > > root at lin3 [~]# ifconfig -a > > eth0 Link encap:Ethernet HWaddr 00:0C:29:83:21:44 > > inet addr:188.72.255.189 Bcast:188.72.255.255 > Mask:255.255.255.0 > > inet6 addr: fe80::20c:29ff:fe83:2144/64 Scope:Link > > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > > RX packets:9653 errors:0 dropped:0 overruns:0 frame:0 > > TX packets:458 errors:0 dropped:0 overruns:0 carrier:0 > > collisions:0 txqueuelen:1000 > > RX bytes:876648 (856.1 KiB) TX bytes:50814 (49.6 KiB) > > Base address:0x2000 Memory:d8920000-d8940000 > > > > 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:483 errors:0 dropped:0 overruns:0 frame:0 > > TX packets:483 errors:0 dropped:0 overruns:0 carrier:0 > > collisions:0 txqueuelen:0 > > RX bytes:75305 (73.5 KiB) TX bytes:75305 (73.5 KiB) > > > > sit0 Link encap:IPv6-in-IPv4 > > NOARP MTU:1480 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:0 > > RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) > > > > > > > > 2010/3/29 Matt Iavarone <matt.iavarone at gmail.com> > > 2010/3/29 cahit Eyig?nl? <cahit.eyigunlu at gmail.com>: > > > This is my two line on route-eth0 > > > address0=217.20.117.1 > > > subnet0=255.255.255.255 > > > but what should be next line for default gateway the only thing that i > could > > > not complete is default gateway setting > > > and my netstat table must looklike this : > > > Destination Gateway Genmask Flags MSS Window > irtt > > > Iface > > > 217.20.117.1 0.0.0.0 255.255.255.255 UH 0 0 > 0 > > > eth0 > > > xx.xx.xx.0 0.0.0.0 255.255.255.0 U 0 0 0 > eth0 > > > 0.0.0.0 217.20.117.1 0.0.0.0 UG 0 0 > 0 > > > eth0 > > > and now i see only the first two line truely i am adding 3rd line on > every > > > time restart manually with route add default gw > > > > > > 2010/3/29 Les Mikesell <lesmikesell at gmail.com> > > >> > > >> cahit Eyig?nl? wrote: > > >> > i am reaching the network with this : > > >> > route add -net 217.20.117.1 netmask 255.255.255.255 dev eth0 > > >> > route add default gw 217.20.117.1 > > >> > > > >> > i have added eth0 > > >> > address0=217.20.117.1 > > >> > subnet0=255.255.255.255 > > >> > > > >> > the first command is ok but how could i set the second command to > cent > > >> > os to do it automatically > > >> > > > >> > > >> If you create a file named /etc/sysconfig/network-scripts/route-eth0 > you > > >> can put > > >> lines in it that will have 'ip route' added at the beginning and > executed > > >> after > > >> the interface is up. "ip route" takes some different arguments than > the > > >> "route" > > >> command - see "man ip" for details. > > >> > > >> -- > > >> Les Mikesell > > >> lesmikesell at gmail.com > > >> > > >> > > >> > > >> _______________________________________________ > > >> CentOS mailing list > > >> CentOS at centos.org > > >> http://lists.centos.org/mailman/listinfo/centos > > > > > > > > > _______________________________________________ > > > CentOS mailing list > > > CentOS at centos.org > > > http://lists.centos.org/mailman/listinfo/centos > > > > > > > > > > Why don't you post the results of 'ifconfig -a' and 'ip route show'? > > Giving information piecemeal is not helping anyone. > > _______________________________________________ > > CentOS mailing list > > CentOS at centos.org > > http://lists.centos.org/mailman/listinfo/centos > > > > > > > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -------------- next part -------------- An HTML attachment was scrubbed... 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