PPPOE won't get IPV6 Address

RouterOS General
1

I am trying to set up my RB750 to obtain an IPV6 address from my ISP. Several times it worked fine and obtained a /64 prefix. Now it won’t . I’ve lost the formula!. I’m using my Mikrotik with an Huawei HG658 in bridge mode…IPV4 working fine… IPV6 DHCP6 client is getting a couple of NAK’s… like this… Telmex-PPP: rcvd IPV6CP ConfNak id=0x7. The modem in router mode gets an IPV6 every time, no problem..

Anybody got any ideas? My ISP is not helpful The CSR’s there know nothing about IPV6

Here’s a piece of the ppp log…full log and config screen shots attached.

Dec/14/2021 19:29:58 pppoe,ppp,info Telmex-PPP: initializing…
Dec/14/2021 19:29:58 pppoe,ppp,info Telmex-PPP: connecting…
Dec/14/2021 19:30:01 pppoe,ppp,info Telmex-PPP: authenticated
Dec/14/2021 19:30:01 pppoe,ppp,debug Telmex-PPP: IPCP lowerup
Dec/14/2021 19:30:01 pppoe,ppp,debug Telmex-PPP: IPCP open
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet Telmex-PPP: sent IPCP ConfReq id=0x7
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet <addr 0.0.0.0>
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet <ms-dns 0.0.0.0>
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet <ms-dns 0.0.0.0>
Dec/14/2021 19:30:01 pppoe,ppp,debug Telmex-PPP: IPV6CP lowerup
Dec/14/2021 19:30:01 pppoe,ppp,debug Telmex-PPP: IPV6CP open
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet Telmex-PPP: sent IPV6CP ConfReq id=0x7
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet <interface-identifier 0:0:0:8>
Dec/14/2021 19:30:01 pppoe,ppp,debug Telmex-PPP: MPLSCP lowerup
Dec/14/2021 19:30:01 pppoe,ppp,debug Telmex-PPP: MPLSCP open
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet Telmex-PPP: sent MPLSCP ConfReq id=0x10
Dec/14/2021 19:30:01 pppoe,ppp,debug Telmex-PPP: BCP open
Dec/14/2021 19:30:01 pppoe,ppp,debug Telmex-PPP: CCP lowerup
Dec/14/2021 19:30:01 pppoe,ppp,debug Telmex-PPP: CCP open
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet Telmex-PPP: rcvd IPCP ConfReq id=0x1
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet <addr 200.38.193.226>
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet Telmex-PPP: sent IPCP ConfAck id=0x1
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet <addr 200.38.193.226>
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet Telmex-PPP: rcvd IPV6CP ConfReq id=0x1
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet Telmex-PPP: sent IPV6CP ConfAck id=0x1
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet Telmex-PPP: rcvd IPV6CP ConfNak id=0x7
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet <interface-identifier 0:0:0:1>
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet Telmex-PPP: sent IPV6CP ConfReq id=0x8
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet <interface-identifier 0:0:0:1>
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet Telmex-PPP: rcvd IPCP ConfNak id=0x7
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet <addr 189.163.54.73>
Dec/14/2021 19:30:01 pppoe,ppp,debug,packet <ms-dns 200.23.242.154>
Full log attached..
Mikrotik Telmex Config.pdf (49.2 KB)
log.0.txt (10.6 KB)

2

I found the problem…in the firewall rules…make sure you start your setup with a clean firewall..

3

Don’t ever start with a clean firewall, start with the default firewall instead.

4

Hello friend the problem was solved with version 7?