Provide LAN and DHCP server settings? How many L2/L3 switches are connected to the TL-ER6120?

GRE protocol for use with what VPN service? PPTP?

Provide network diagram? ISP cable/dsl/other? WAN connection type static/dynamic/pppoe/other?

siju wrote Below are the options available for Phase 1 and Phase2 Proposal Phase1 Exchange = Main Mode or Aggressive or IKEv2 DH GROUP = Group1, Group2 , Group5. Group14 Encryption = 3DES, AES128,...

No, do not disable DHCP. It is too complex if you do not understand the concept of windows file sharing or linux file sharing. Instead edit your "lmhosts.sam" file located in...

siju wrote Which Screen shot required. Sonicwall or TD8968. TD 8968 does not have an Option for ESP and AH protocol in phase 2. But Sonicwall and many other firewalls has only ESP and AH protocol in...