Michael- >From the subject unable to determine the connectivity you are trying to resolve. >From the output of the $ ip route command, it seems you have a host with two interfaces connected to a cable modem and they are assigned ip addresses in two different subnets and that seems to be working. Are there other hosts in your network you'd like to connect with and are unable to reach? Regards, -Jamie On Tue, Nov 8, 2022 at 1:05 PM Mike Wright <nobody@xxxxxxxxxxxxxxxxxxxx> wrote: > > On 11/8/22 09:09, Michael D. Setzer II via users wrote: > > Probable a simple solution, but its been a while since I done this type of stuff. > > > > Have a cable modem that has 4 ports but using 2. > > First port gets public IP xxx.xxx.233.11 with private network 192.168.16.x > > Second port gets public IP xxx.xxx.234.251 with private network 192.168.24.x > > > > ip route > > default via 192.168.16.1 dev enp8s0 proto dhcp metric 100 > > default via 192.168.24.1 dev wlp7s0 proto dhcp metric 600 > > 192.168.16.0/24 dev enp8s0 proto kernel scope link src 192.168.16.101 metric 100 > > 192.168.24.0/24 dev wlp7s0 proto kernel scope link src 192.168.24.13 metric 600 > > > > Years ago, had setup a Redhat 9 machine that had 9 ethernet interfaces. > > 1 connected to college backbone, and 8 that connect to 8 separate classrooms with each having its > > own private network. Used IPtables and had it all able to communicate with any machine in any > > classroom, and all machines used a squid server running on same machine getting a 40% cache hit > > ratio. So know it can be done. > > > > In searching found pages that say shouldn't have two default routes, but that it what it shows on > > systems connect to both networks by default. Many things work, but others don't. > > > > Some things mentioned > > echo 1 >> /proc/sys/net/ipv4/ip_forward > > > > Which I recall needing before, but didn't seem to solve issue? > > Ping works between networks, but traceroute doesn't. > > > > Wondering if there is a simple solution. > > I seem to recall that the default route is determined by which default > was defined most recently. That would be the first one listed by "ip > route". > > I have a multi-homed router with only one default route. Each other > port has a 10.something.1 address. Route to an interface's gateway can > be specified in the network scripts or manually added with: > > "ip route add a.b.c.0/24 via a.b.c.1 dev ethX" (assuming GW is .1) > > I use iptables FORWARD rules to decide which services are available > to/from which interfaces and ports. > > You can also enable forwarding in /etc/sysctl.conf > > "net.ipv4.ip_forward=1" and/or "net.ipv6.ip_forward=1" > > To reload sysctl.conf issue "sysctl -p" and it will display changes in > sysctl.conf since last time (re)loaded. > > Hope that's helpful, > Mike Wright > _______________________________________________ > 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 > Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue _______________________________________________ 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 Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
