Packet parsing and modification

Hi All,

I need your help regarding packet capturing and modification. Like we may add extra content into the original html content.

Any open source tools.. programs...etc..

Do share your views and ideas.

-Vivek

Can you explain your idea more? What OS's are your targets?

Generally, you would use an HTTP (reverse) Proxy server for this sort of thing. But you could also use a packet-sniffer and re-writer. The latter is much more complicated, but also more general.