Richard, Give us the output of 'ifconfig' and 'route -n' commands. You can comment out some details so as to keep your IP addresses anonymous.
You could be doing something wrong but we need some more details to help. P. On Wed, Feb 23, 2011 at 11:19 AM, Richard Zulu <[email protected]> wrote: > Well, > > The internal interface has a private I.P address, with a default gateway of > something like 172.16.0.1 and a subnet of /16 > > The external interfaces have Public I.Ps, with their default gateway having > public I.P. > > @Collins, with the internal interface up, the internal interface has it's > default route pointing to it's default gateway, 172.16.0.1 > > And the external interfaces also points to their own default gateway. > > > > On Wed, Feb 23, 2011 at 2:52 AM, sanga collins <[email protected]>wrote: > >> what is your default route when the internal interface is up? >> >> On Tue, Feb 22, 2011 at 5:19 AM, Richard Zulu <[email protected]> wrote: >> >>> Hi, >>> >>> Quick question: I have a linux box with three interfaces, two of them >>> face my external network (one is a sub-interface) , with the same gateway >>> address but obviously different I.Ps. Both are in the same public network / >>> subnet >>> >>> One of the interfaces faces my internal network, private IP addresses. >>> >>> Problem: With all the interfaces up, I cannot reach any of the networks, >>> both internal and external. >>> >>> However, with the internal network interface down, I can get to the >>> external network. >>> >>> I need my internal interface up so that I can get to my internal network >>> and at the same time get to the external networks. >>> >>> How can I pull it off? >>> >>> >>> >>> -- >>> Richard Zulu >>> gtug lead, Kampala (Uganda) >>> http://kampala.gtugs.org >>> >>> >>> >>> _______________________________________________ >>> The Uganda Linux User Group: http://linux.or.ug >>> >>> Send messages to this mailing list by addressing e-mails to: >>> [email protected] >>> Mailing list archives: http://www.mail-archive.com/[email protected]/ >>> Mailing list settings: http://kym.net/mailman/listinfo/lug >>> To unsubscribe: http://kym.net/mailman/options/lug >>> >>> The Uganda LUG mailing list is generously hosted by INFOCOM: >>> http://www.infocom.co.ug/ >>> >>> The above comments and data are owned by whoever posted them (including >>> attachments if any). The mailing list host is not responsible for them in >>> any way. >>> >> >> >> >> -- >> Sanga M. Collins >> Network Engineering >> ~~~~~~~~~~~~~~~~~~~~~~~ >> Google Voice: (954) 324-1365 >> E- fax: (435) 578 7411 >> >> _______________________________________________ >> The Uganda Linux User Group: http://linux.or.ug >> >> Send messages to this mailing list by addressing e-mails to: >> [email protected] >> Mailing list archives: http://www.mail-archive.com/[email protected]/ >> Mailing list settings: http://kym.net/mailman/listinfo/lug >> To unsubscribe: http://kym.net/mailman/options/lug >> >> The Uganda LUG mailing list is generously hosted by INFOCOM: >> http://www.infocom.co.ug/ >> >> The above comments and data are owned by whoever posted them (including >> attachments if any). The mailing list host is not responsible for them in >> any way. >> > > > > -- > Richard Zulu > gtug lead, Kampala (Uganda) > http://kampala.gtugs.org > > > > _______________________________________________ > The Uganda Linux User Group: http://linux.or.ug > > Send messages to this mailing list by addressing e-mails to: > [email protected] > Mailing list archives: http://www.mail-archive.com/[email protected]/ > Mailing list settings: http://kym.net/mailman/listinfo/lug > To unsubscribe: http://kym.net/mailman/options/lug > > The Uganda LUG mailing list is generously hosted by INFOCOM: > http://www.infocom.co.ug/ > > The above comments and data are owned by whoever posted them (including > attachments if any). The mailing list host is not responsible for them in > any way. >
_______________________________________________ The Uganda Linux User Group: http://linux.or.ug Send messages to this mailing list by addressing e-mails to: [email protected] Mailing list archives: http://www.mail-archive.com/[email protected]/ Mailing list settings: http://kym.net/mailman/listinfo/lug To unsubscribe: http://kym.net/mailman/options/lug The Uganda LUG mailing list is generously hosted by INFOCOM: http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The mailing list host is not responsible for them in any way.
