I need to deploy a firewall to two large office (~ 100 & 500 users) respectively and several small branch office, from 5 - 20 users.
1. support web access filter and block messengers like MSN, Skypei, Yhaoo messenger ,etc Ideally, it supports different blocking list based on different group.
2. can review real time packet flow and apply access-list to block if needed. Ideally, it can identify L3 / L4 activities.
3. Two large offices will need to have IDS support.
Under different requirement for different countries, what band of product can fullfil the need ?