I need help about giving static public ip to my one of client. i have x.x.x.x/29 pool on my WAN side and i want to give one of the ip from that pool to my pppoe or direct static to client. how can i do this ?
Just set pppoe server up, assign local address as public IP on your side, remote ip is ip you want to give to user. Other BRAS stuff is more complex, you should google it.
If whole /29 is on WAN, you can’t just take one address from that and put it elsewhere, because ISP’s router expects it to reply to ARP requests and it won’t when it’s not there. So the fix is to use proxy ARP. Either enable it on WAN interface, or do it for just that one address (I like this better):