Configuring Juniper SRX MPIM VDSL2 module with DHCP/IPOE for use with consumer ISP
This post documents terminating consumer broadband on an SRX security gateway with a MPIM VDSL2 module installed using the DHCP/IPOE configuration. These steps require VLAN tagging which is in Junos 12.1. Most consumer broadband providers use vlan-id 101 but check with yours for correct configuration. The VDSL2 MPIM interface is at device pt-1/0/0 in Junos.
Configuring DHCP/IPOE on the VDSL2 interface.
Configure VDSL2 interface in untrust zone and allow DHCP
Configure default the route. Make sure you delete any previous default routes.
Check interface status here it is up and local public ip is configured. Below 126.96.36.199/20 will be unique and assigned by ISP.
Check interface status breif, you can also check extensive which will show the VDSL connected up and down bit rates (line speeds > show interfaces pt-1/0/0 extensive
match rate ).
If you have an IP assigned on the interface, exit cli and confirm you can ping google public DNS
Monitor the interface if DHCP is not working. Check again with ISP for VLAN, MTU. Use ‘show configuration interfaces pt-1/0/0’ to validate config.
It really is very simple to setup, far more than PPPoE. You might need futher Junos SRX configuration depending on your network but connected devices set with the SRX as gateway should be internet connected. If you can ping outside from the SRX then its down to troubleshooting your local configuration.