I have a 3745 with the 36-port Ethernet module in it to provide inline power and connectivity for IP phones. I am having trouble getting everything to play nicely, specifically inter-VLAN routing and DHCP on the 3745.
If I setup the router with sub-interfaces (int fa0/0.55, etc.) like you would do on an external router, I can get inter-VLAN routing between the router, a switch and another router in my test network, but my IPphones and clients can't get DHCP from the switch module or communicate at all.
If I setup the router with VLAN interfaces (int VLAN 55, etc.) like you would do on a switch or RSM, I can get inter-VLAN routing on the devices (IP phones, laptop) connected to the 36 port module, but I can't ping the switch, router, etc. (anything not connected to the 36-port module).
And obviously you can't do both (sub-interfaces and VLAN interfaces).
I have a setup already with a 3745 where we're not using the 36-port module, and the phones plug directly into a 3524-PWR-XL switch and we trunk between the switch (using int VLAN 55, etc.) and the router (sub-interfaces), and everything works fine, since the logic is on two seperate devices. But when I go to put everything on the 3745, I can only get one or the other.
I found a forum article mentioning an upgrade to the IOS. I am currently running c3745-is-mz.122-8.T5.bin. I downloaded c3745-js-mz.122-13.T.bin but when I go to install it is says that there's not enough room on the device. Shouldn't is prompt me to erase then continue?
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...