Andrej Moravcik escribió: > Hello Jose, > > from the picture you provided the situation looks pretty simple. > > - you have enabled IP forwarding on router, I recommend you to put it > into /etc/sysctl.conf for persistence. > > - you have configured firewall rules on router to allow forwarding > traffic from left to right subnet. You can also try to set up ACCEPT > policy just for testing. > > > - the default gateway for left subnet is 192.168.1.1 (you mentioned > router for Internet access). Correct me if I'm wrong. > > - the default gateway for right subnet I assume is 192.168.236.74. You > don't have to do anything with routing here. Every host in right subnet > knows where to send replies. > > > - the problem seems to be missing routing information in left subnet. > Hosts don't know anything about the right subnet and thus send requests > to the default gateway 192.168.1.1. > > - modifying routing table on every host in left subnet can be solution > in case, if there is only a few hosts which need to access right subnet > > - if you need to have fully accessible subnets, put the static route to > default gateway 192.168.1.1 to redirect requests to proper gateway. If > it is Linux gateway, try something like this > > [root at default-gw]# ip route add 192.168.236.0/24 via 192.168.236.74 > > > Regards > > Andrej > > > > Jose Maria Terry Jimenez wrote: > > >> I have a CentOS 5.5 machine with 2 nics each one configured to work in >> one of the nets. The CentOS also uses a router for Internet access that >> is 192.168.1.1. >> >> 192.168.1.0/24 >-----192.168.1.100--[CentOS Machine]--192.168.236.74 >> --------< 192.168.236.0/24 >> > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > Thank you very much, Andrej. Today i couldn't test this, but default gateway for right subnet is 192.168.236.21 and i can't change anything in that router and many machines of that network, i only admin a few there. Best, =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Scanned with Copfilter Version 0.84beta3a (ProxSMTP 1.6) AntiVirus: ClamAV 0.95.2/12419 - Mon Dec 20 17:17:01 2010 by Markus Madlener @ http://www.copfilter.org -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20101220/28a619aa/attachment-0005.html>