27-Jan-2013

New router installed
For a few years, I used a Draytek Vigor 2910 router, that includes Wifi and VoIP, and the ability to connect over ISDN (which I never used). That worked fine until the new ISP connection has been delivered. The new ISP has higher demands: IPv6 and multi-VLAN, to begin with. For all easy, they offer a router that is pre-configured for their connections: a AVM Fritz!Box 3790. It makes installation very easy, but the system has a few disadvantages compared to the Draytek: No logging to a syslog daemon; no facilities to block specific systems, ranges or networks. And, appearently, it cuases delays on internal traffic.
So I bought its successor: VG2920 Vn, it supports IPv6 and multiple VLANs.
Since this is the same line as its predecesssor, you could expect that configuration would be just a matter of loading the last saved configuration and adjust what’s added (and changed). But that is too simple. You have to do it all by hand, but that is not as bad as it sounds: access both of the routers and copy setiings from one side to the other. In most aspects, the UI is the same, in others, you really need to look further…But at some point, the basic configuration was such that I could connect to the ISP, and all Internet traffic – both outgoing and incoming – passes the router properly. Blocking works as well.
But accessing the FritzBox as an internal router – for VoIP – was a different matter, so I moved the phones to the Vigor as well. Both numbers now call out – calling them isn’t yet possible since the numbers were deactived by the errorenous deactivation of the connectrion in the beginning of December and not yet installed at the new ISP. But I followed the instructions and it should work.
Another thing to test is IPTV, which has been set up in it’s own VLAN and bridged to a specific port(though it is yet another protocol) so the Fritz!Box will have its use as a normal device – I hope that will work. It seems there is specific software in that box so I’ll need it for IPTV – but if it works without it, even better. That will become clear when IPTV is enabled. Three more weeks….
There is still a minor issue, though it seems to have no real implications – for now, at least: the Vigor doesn’t get an IP6 address. The ISP expects a DHCPv6-client that supports prefix delegation, but this router does not have a choice for “DHCPV6_IA_PD” as is mentioned in the manuals of the ISP. The configuration does show “DCCPV6_client” and a button for “prefix delegation” – and it requires an ID, but as the client, I can define my own. So I did, but still I don’t get an IP6 address….
It might help to take down the connection for some time, in order to run into a timeout so it must be re-initiated from the ground up. It won’t pose a problem in IP4 since it is assured the address won;t change, and it will actually re-initiate the IP6 DHCP again.
Asking the ISP – and the supplier of the router – may also help.
Spam comments arrived
I got a few “comments” – actually: spam messages – though you need to login to comment, and these comments do not come from a logged-in user. The other source of these messages might be a trackback. So I disabled pings alltogether