I have a site to site Ipsec VPN configured on a cisco router. so can you configure L2tp/IPsec Remote Access Vpn on same router so that i can use both. If yes what changes do i have to make.

I am trying to do Dynamic DNS. My ISC Dhcpv6 and bind server both are working. However i am not able to dynamically update the hostnames. i am getting this error Unable to add reverse map from 0.2.0.0.2.8.1.0.1.3.0.0.6.9.0.0.3.1.0.0.0.0.0.0.0.0.9.4.6...

For my IPv6 deployment i need that the hosts should be automatically updated on my DNS server. what are different ways to do that? for IPv4 we have a script that create hostnames and links it to host but in ipv6 there are many address. need suggestio...

I am trying to configure a L2TP/IPsec remote access vpn on my cisco router 2921 and i want remote access from any pc or mobile.  However i am getting this error and not able to set this VPN. need help. here is my debug