IPCP_OPT_COMPRESSION
sp->ipcp.opts |= (1 << IPCP_OPT_COMPRESSION);
case IPCP_OPT_COMPRESSION:
case IPCP_OPT_COMPRESSION:
case IPCP_OPT_COMPRESSION:
sp->ipcp.opts &= ~(1 << IPCP_OPT_COMPRESSION);
case IPCP_OPT_COMPRESSION:
~(1 << IPCP_OPT_COMPRESSION);
if (sp->ipcp.opts & (1 << IPCP_OPT_COMPRESSION)) {
opt[i++] = IPCP_OPT_COMPRESSION;
case IPCP_OPT_COMPRESSION: return "compression";