In looking at the emulator for the RV130, my educated (i.e., strong) guess is it will not work with Comcast's DHCPv6 w/PD. Why? In the emulator, I do not see a Prefix Delegation option on the LAN screen. Note this field is present on the WAN screen for the RV220W (emulator and the real live one I own).
For the RV220W emulator, see where the enable prefix delegation field is present on both the WAN and LAN configuration screens. My experience in getting a very similar router to the RV220W (but not from Cisco) is that these two fields -- on the WAN and on the LAN -- must be enabled to make things work with Comcast's DHCPv6 w/PD. So I'm both posting my opinion, and asking if you ever got this to work, on either model, or have you confirmed from Cisco if wither model will work?
I'm still waiting for some beta firmware for the RV220W I recently bought, to get it's IPv6 working with Comcast, and I'll paste below the configuration I 1) successfully use in the working competing router (the internal firmware -- from Cavium seems to be very similar), and 2) expect to work in the RV220W.
Configuration I expect will work in the RV220W:
IP Mode > IPv4 and IPv6 Dual-Stack (of course)
WAN (Internet) Connection Type > DHCPv6
DHCPv6 Address Settings > Stateless Address Auto Configuration
Enable Prefix Delegation > Checked -- There are two of these fields, this one is in the IPv6 WAN (Internet) screen)
DHCP Status > Enable DHCPv6 Server
DHCP Mode > Stateless
Enable Prefix Delegation > Checked -- Second of the two fields, this one is in the IPv6 LAN (Local Network ) screen.
Router Advertisement Status> Enable (checked)
Advertise Mode > Unsolicited Multicast
RA Flags > Other = checked and Managed = unchecked
Networking > IPv6 > Router Advertisement > Prefix Table > Make no entries here – the values Comcast’s DHCPv6 give to the router will show up in here automatically (about every 24 hours). In fact you cannot edit or delete the automatic values than show up in here.
Don’t change anything from the default is it’s not listed above, in particular the IPv6 Address Pool Table and the List of Prefixes for Prefix Delegation are both left blank. For the former, it sound’s counter-intuitive but that is how it works on the competing/similar router.
IP Mode > IPv4 and IPv6 Dual-Stack (of course)
WAN (Internet) Connection Type > DHCPv6
DHCPv6 Address Settings > Stateless Address Auto Configuration
Enable Prefix Delegation > Checked -- There are two of these fields, this one is in the IPv6 WAN (Internet) screen)
DHCP Status > Enable DHCPv6 Server
DHCP Mode > Stateless
Enable Prefix Delegation > Checked -- Second of the two fields, this one is in the IPv6 LAN (Local Network ) screen.
Router Advertisement Status> Enable (checked)
Advertise Mode > Unsolicited Multicast
RA Flags > Other = checked and Managed = unchecked
Networking > IPv6 > Router Advertisement > Prefix Table > Make no entries here – the values Comcast’s DHCPv6 give to the router will show up in here automatically (about every 24 hours). In fact you cannot edit or delete the automatic values than show up in here.
Don’t change anything from the default is it’s not listed above, in particular the IPv6 Address Pool Table and the List of Prefixes for Prefix Delegation are both left blank. For the letter, it sounds counter-intuitive but that is how it works on the competing/similar router.
And one last point, sort of a mini-rant:
Using these SOHO “small business class” routers, we’re in the middle of two groups of routers (and router users) that all seem to work fine with Comcast’s IPv6 implementations. Group # 1, the typical home user, for which Comcast has been working with the router vendors to make both 1) DHCPv6 w/PD work, and 2) one button configuration for DHCPv6 w/PD work. The list of those routers is here, http://mydeviceinfo.comcast.net/?homegateway. Comcast seems to encourage the average layman/user to use those routers first. Noted that they do not ever discourage anyone else from using anything else, in fact they seem to be exceedingly helpful on internet forums (DSL Reports and the Comcast forums), but completely not-ready for call-in questions on their customer support phone banks.
Group #2, AFAICS, are users of Cisco IOS routers, they post their manual IOS configurations (DSl reports) and all seems to work fine. We’re in between the two, these SOHO routers do not fall into group #1, and they are not group #2 (Cisco IOS capable). End of Mini-rant.
Reply back if you want the links to where people from Comcast support explain how the whole DHCPv6 W/PD is supposed to work on their system.
