Re: VPN tunnel between SRX100 and SRX220

Try configuring the local identity on both sides as below:

set security ike gateway GW-NAME local-identity inet 192.168.1.1 --> The initial private IP you have used on external inetrafces

if that dont help please use below on both sides.

set security ike gateway GW-NAME general-ikeid

Regarding VLANs, below URLs may be helpfull.

https://kb.juniper.net/InfoCenter/index?page=content&id=KB16667&actp=search

https://www.juniper.net/documentation/en_US/junos12.1x44/topics/concept/security-interface-vlan-tagging-configuring.html

http://forums.juniper.net/t5/SRX-Services-Gateway/SRX-100-Vlan-configuration/td-p/230279