the 1.7 and 1.8 are not on the same subnet as defined by the subnet mask.
(unless you were using bridging, the router would not let you configure two interfaces to the same subnet)
1.7 is subnet 192.168.7.0/24
1.8 is subnet 192.168.8.0/24
have you done a 'no shut' on the new 1.9 subInterface?
can a PC on 192.168.7.0 subnet ping 172.16.30.1?
can a PC on 192.168.8.0 subnet ping 172.16.30.1?
if so, perhaps you have a route table problem on the PC on 172.16.30.0/16 subnet. use the 'route print' command at the PC dos prompt to view the PCs routing table.
if you still have problems, please post the entire configuration if you can, minus any sensative public ip addresses and we can help you more. also provide a 'show ip route' so we can see exactly what the router knows about its routes.
I think the problem is with the switch on the far end , doesn't sound like the trunk is working right , you would have to post the entire switch config to take a look . On the switch on the far end did you create the layer 2 vlan and make sure it is allowed across the trunk ??? Usually on the router you have to specify one of the vlan subinterfaces as the native vlan and make sure that matches on the switch also for the trunk to work right . Don't see where you specified the native vlan in the router.
1 - I had the incorrect IP address for the default gateway on the switch. After I entered the correct IP address, I was able to communicate between VLAN 9 and VLAN 7. I will not be able to test VLAN 8 until later on today but I think that it will work. Thank you everyone for your help.
2 - On the router, I did not have int 0/1.1 set up for trunking.
After I made these 2 changes, I was able to communicate between VLAN 9 and VLAN 7. I will not be able to test VLAN 8 until later on today but I think that it will work.
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