Javier A Toledano wrote:
Routing Problem
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The problem is that forwarding is enabled but when I try to probe connectivity from a host in the 10.0.0.0 net , eg 10.0.0.1 making an echo request to a host in 192.168.10.0 net , eg 192.168.10.49 the icmp packets arrive to the linux box (interface eth0) but don't traverset it. After I iniate an echo request from 192.168.10.49 to 10.0.0.1, the packets iniatated in 10.0.0.0 net starts to traverse the router magically. It seems that It needs a packet from the 192.168.10.0 to start working. I would appreciate any idea.
I'm not a CentOS user so I can not say for sure. However I would expect that (despite what you say) that there is some sort of IPTables stateful packet inspection going on from your 10/ network to your 192.168/ network. If this is indeed the case and the rule is a basic state of ESTABLISHED, RELATED, then any traffic from 10/ to 192.168/ AFTER you sent traffic from 192.168/ to 10/ would be considered RELATED and thus allowed through. However, if as you say, there are no IPTables rules in play at all something else is interfering with your traffic, what it would be, I'm not sure. Try running iptables-save to make sure that there are absolutely no rules in effect any where. Grant. . . . (Reposted to the mailing list verses directly back to the OP.) _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc