I am able to establish IPSEC connection between one client per server. Actually I can connect multi Ipsec server at the same time. But I have realized that when servers have same xl2tpd.conf file like following
[global]
ipsec saref = yes
listen-addr = 12.34.56.78
[lns default]
ip range = 192.168.1.10-192.168.1.20
local ip = 192.168.1.1
;require chap = yes
refuse chap = yes
refuse pap = yes
require authentication = yes
ppp debug = yes
pppoptfile = /etc/ppp/options.xl2tpd
length bit = yes
Server 1 can be reachable via 192.168.1.1 ip address however Server 2 can be reachable via different one assigned randomly say 162.xx.xx.xx though in xl2tpd.conf->local ip is set 192.168.1.1. Actually I am not expecting to reach diffent machines with same ip address. But how can I make server unique by modifiying the xl2tpd.conf files of all servers.