cyberoam is the best
All routers provide good hardware firewalls using stateful packet inspection (SPI), but Buffalo routers are excellent in this regard.
Usually software but some hardware firewall devices are produced.
NAT IS A FIREWALL -- inside a router and when on you have a hardware firewall protecting you
backup
It is the general consensus that you should complement your firewall program by installing a hardware firewall. This is a firewall that is built into a router or stand-alone device. It often provides greater protection than a software-based firewall.
Great firewall software would include zonealarm or webroot. Even the windows firewall included with Windows XP SP2 and beyond should do the trick. And remember that if you have a router it also has a hardware firewall in it.
No
No
firewall is a hardware or software solution to enforce security policies. In the physical security analogy,
A firewall can be either hardware or software
I think firewalls can be both software and hardware. When you buy computers, it will usually always come with a limited time only antivirus and firewall.