tag:blogger.com,1999:blog-5899929765246276685.post4702546567810785644..comments2024-01-30T12:49:12.149+00:00Comments on Marrold's Blog: Using a Cisco 887 Router as a VDSL Modemmarroldhttp://www.blogger.com/profile/14587482147531978196noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-5899929765246276685.post-74565578704061218762021-09-01T17:29:32.512+01:002021-09-01T17:29:32.512+01:00Thanks for your article I was struggling with a VD...Thanks for your article I was struggling with a VDSL config, I thought I was managing fine as I converted from an 1801 with the wan on ethernet and an old DSLAM to convert the VDSL.<br /><br />I configured int eth0.101 and the Dialler added an MTU 1492 which refused to go. The key was modem ukfeature in the controller config to stop that happening.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5899929765246276685.post-76647757816103611892018-01-13T11:38:19.364+00:002018-01-13T11:38:19.364+00:00Hi, I'm afraid I don't know. I'm not m...Hi, I'm afraid I don't know. I'm not much of a Cisco expert, this was just bodged together from a couple of other guides online and I've since got rid of the router so I can't take a look.<br /><br />My hunch is you wouldn't be able to do what you're trying to achieve with a single IP address, as the IP usually terminates on the device handling the PPPoE, which in your case would be the Cisco. <br /><br />It looks like if your ISP gives you another subnet, you can use 'half-bridging' so one IP terminates on the PPP device, and the rest of the subnet is passed to a router behind it - https://rscc.co.uk/cisco-857-half-bridge-mode/<br /><br /><br />I hope that helps.marroldhttps://www.blogger.com/profile/14587482147531978196noreply@blogger.comtag:blogger.com,1999:blog-5899929765246276685.post-51679177641336562032018-01-13T11:04:54.086+00:002018-01-13T11:04:54.086+00:00I'm just about to do something similar, but du...I'm just about to do something similar, but due to a limitation on my firewall I'm keen for the Cisco to do the PPP hardwork.. do you know if you can get the Cisco to do the dial-in and just hand me a public IP on the other side?Daniel Chttps://www.blogger.com/profile/13351789285892321823noreply@blogger.com