On Fri, Jan 24, 2020 at 7:19 PM Mike Wright <nobody@xxxxxxxxxxxxxxxxxxxx> wrote: > On 1/24/20 9:54 AM, sean darcy wrote: >> >> I'm trying to set up a dmz between my internal network and the router. >> Interface A for internal, interface B for the router. How do I make sure >> the default route is set to interface B ? > > I can give you the manual method for ipv4. > > For traffic to cross between the two interfaces forwarding must be > enabled. That is done in sysctl.conf > > net.ipv4.ip_forward=1 > > Then the default route is assigned to the router interface: > > ip route add default via <gateway_ip> dev <router_interface> It's better to enable forwarding for the NIC that needs it /proc/sys/net/ipv4/conf/<NIC>/forwarding /proc/sys/net/ipv6/conf/<NIC>/forwarding so net.ipv4.conf.<NIC>.forwarding = 1 net.ipv6.conf.<NIC>.forwarding = 1 _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx