help on network config

[stin wang]

in my opinion, gateway should be something that transfer data through
different network segment??

i'm  not  familiar with  it.

2008/4/1, Danny Terweij <danny at leto.nettuning.net>:
>
>  Normaly you use 1 gateway within a network / building if its the same
> subnet.
>
> Why do you have 3 (or more) different gateways?
> Do you understand what a gateway is?
>
> Danny.
>
>
>
> ----- Original Message -----
> *From:* stin wang <stin.wang at gmail.com>
> *To:* Ubuntu user technical support,not for general discussions<ubuntu-users at lists.ubuntu.com>
> *Sent:* Tuesday, April 01, 2008 9:51 AM
> *Subject:* Re: help on network config
>
> i can't change pc2,pc3  as you say, because the gateway should be
> determined by its location. many pcs distrubute in different floors.
>
>
> 2008/4/1, stin wang <stin.wang at gmail.com>:
> >
> > because if i use windows, those subnet communicate properly.
> >
> > btw.
> >
> > pc1 ubuntu
> > pc2 and pc3 pc4 all in windows
> >
> > I think it should be some wrong with my network configure ,mabey
> > hardware.
> >
> > maybe i should get some help from my network administrator.
> >
> >
> >
> >
> > 2008/4/1, Nils Kassube <kassube at gmx.net>:
> > >
> > > stin wang wrote:
> > > > pc1
> > > > ip 172.18.20.87
> > > > mask 255.255.255.224
> > > > gate 172.18.20.94
> > > > pc2
> > > > 172.18.20.98
> > > > 255.255.255.224
> > > > 172.18.20.126
> > > > pc3
> > > > 172.18.20.225
> > > > 255.255.255.224
> > > > 172.18.20.253
> > > >
> > > > i can ping 172.18.20.98 172.18.20.225 in pc1 ,it's ok
> > > > but i can't use ftp,vnc,or tsclient to pc2 or pc3, but it's ok for
> > > > 172.18.20.88 which is in the same gateway as pc1,
> > >
> > > How are those PCs connected? There should be a router with 3 ports
> > > between
> > > the PCs with the addresses *.94, *.126 and *.253 and it needs routing
> > > enabled between the ports.
> > >
> > > > or just ubuntu have some problem with subnet??
> > >
> > > Don't think so. Probably there is something wrong with your network
> > > layout. If all 3 PCs should see each other, you should better use the
> > > same subnet for all of them. E.g. PC1 = 172.18.20.87, PC2 =
> > > 172.18.20.88,
> > > PC3 = 172.18.20.89, netmask 255.255.255.224. If you have a router
> > > connecting your network to the internet, use the IP of the router for
> > > the
> > > gateway on all 3 PCs.
> > >
> > > However, if you have a router connected, it is highly recommended to
> > > get
> > > rid of your static routing. Enable DHCP on the router and on the PCs.
> > >
> > >
> > > Nils
> > >
> > > --
> > > ubuntu-users mailing list
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> >
> >
> >
> > --
> > ----------------------------------------------
> > Tie Wang
> > TianJin Climate Center
> > TianJin Meteorological Bureau
> > Tianjin, China, 300074
> > Email: stin.wang at gmail.com
> > Tel:+86-22-23333559
> > ----------------------------------------------
> >
>
>
>
> --
> ----------------------------------------------
> Tie Wang
> TianJin Climate Center
> TianJin Meteorological Bureau
> Tianjin, China, 300074
> Email: stin.wang at gmail.com
> Tel:+86-22-23333559
> ----------------------------------------------
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-- 
----------------------------------------------
Tie Wang
TianJin Climate Center
TianJin Meteorological Bureau
Tianjin, China, 300074
Email: stin.wang at gmail.com
Tel:+86-22-23333559
----------------------------------------------
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