Hello there, today my cable modem & ISP provider activated IPV6. The cable modem is in bridge mode.
Great, so i activated ipv6 in reForis. i used the DHCPv6 option, and since i am a nOOb, i put this on auto…
Now…all seems to work well to the outside. all connections work, streaming , torrents, everything…
BUT. now, my cable modem has the 192.168.100.1 adress ( or even 192.168.178.1 ) . When i reboot the omnia, i get a DHCP adress from the modem on ipv4. it is 88.89.xx.xx , my ext ip is xx3.xx.xx.xx. according to ip lookup. And now i cant reach the cable modem anymore… 192.168.100.1 says no ping.
So as soon as this is active : Protocol: Dual-Stack Lite (RFC6333) Address: 192.0.0.2/32 Gateway: 0.0.0.0
I cant reach my cable modem anymore. No clue why, but i suspect it has something to do with that dual stack thingie…
ok, solved it. shouldertap, no clue. I will leave it on the forum, so others might find it helpfull?
the default gateway option was the trick. unselect both WAN and WAN6 default gateway X , select the WAN, and after select WAN6 default gateway. that solved the IP4 gateway connectivity issue. And so modem is reachable.
well, all is not well yet…if i reboot, i have to do this again… does someone know here if you have to make just one ( ip4 or ipv 6 ) the default gateway ?
yep, that is automagic starting after 20 seconds. The problem is though that if i reboot the router, i have to manually de-select and select the option default gateway in the IP4 WAN section, see picture
Otherwise my ip4 gateway does not work. Don’t know if this is a bug, but it sure looks like something is less optimal with this type of auto-config.
But after i only de- and select that option all is fine… So, do i need it? That is more the question, since i found out that the cable network is actually using this type of connection?
Ha, thxs! yep, i will try that tomorrow… just small question about the req prefix in wan6 , i think i’ve read that it should be 57 instead of 56? Nou clue, but current one has 57?
this is the current one on wan6 IPv6-PD: xxx:xx0:xx:dd00::/57
Looks like Ziggo in the Netherlands? After the IPv6 introduction my connection stalled frequently. Not knowing enough about this low level networking I disabled IPv6 on the router. Please share the final solution! It seems to matter whether you are located in the “old UPC” area (most of Amsterdam, I think) or elsewhere.
If you want to reach the modem, create a new virtual interface assigned to eth2 (similar as is with WAN6 interface) and assign it a static address in the 192.168.100.0/24 range. Add it to the WAN firewall zone and then you will be able to reach the modem with its address 192.168.100.1.
Tried it, but without the DSlite ipv6 does not work to the outside.
apperantly this ISP ( ziggo /upc klopt Jan, UB13 kabelmodem ) ) needs the Ds lite.
So back to the config you suggested without the DS lite '0" line, ipv6 works. Ip4 gateway only works after i manually de mark and mark the default gateway option in the ip4 config?