[lwip-users] Add new header & tail

Hi, I'm trying to add & delete custom header ESP header 8 bytes before IP header, I used pbuf_header(p,8) in ip_output_if_opt before if (pbuf_header(p, IP_HLEN)) * |room for new header * \/

[lwip-users] trying IPv6

Hello, I'm in the process of integrating IPv6 in our user stack. I'm using lwip-2.1.0RC1, and thanks for that (especially partial SACK since last stable that saved my day this morning). Beeing a complete beginner with IPv6, I started with the basics: ping. I set up a link-local address by ha